Salt form and crystal form of compound as FGFR4 inhibitor and preparation method thereof

Abstract

The present invention provides a salt form, a crystal form, and a preparation method of a compound of formula (I), (II) or (HI) as an FGFR4 inhibitor and medical uses thereof.

Description

5 10 15 20 25 CA 03080827 2020-04-29 SALT FORM AND CRYSTAL FORM OF COMPOUND AS FGFR4 INHIBITOR AND PREPARATION METHOD THEREOF CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the priority of the following application: CN201711059786.4, filing date: 2017-11-01. TECHNICAL FIELD

[0002] The present disclosure relates to salt forms and crystal forms of a class of compounds used as FGFR4 inhibitors, a preparation method thereof, and a medical use thereof. BACKGROUND OF THE INVENTION

[0003] Fibroblast growth factor receptor 4 (FGFR4) is a kind of human protein encoded by the FGFR4 gene. This protein is a member of the fibroblast growth factor receptor family, and the homology of amino acid sequences among FGFR1-4 members is very high, with a high degree of similarity. The protein is a glycoprotein composed of an extracellular immunoglobulin (Ig)-like domain, a hydrophobic transmembrane domain and a cytoplasm portion including tyrosine kinase domain. The binding of the extramembrane domain to FGF leads to dimerization of FGFR, and the receptor undergoes autophosphorylation, thereby activating the downstream signal pathway, and finally affecting the division and variation of cells.

[0004] FGFR4 is distinctly different from FGFR1-3 in terms of genetic structure, FGFR4 has a specific structure of cysteine 552 (CYS552), thus being capable of selectively inhibiting FGFR4, rather than inhibiting the development of FGFR1-3 inhibitors, thereby reducing the potential toxicity caused by FGFR1-3 inhibition. It has been demonstrated from recent studies that FGFR4-FGF19 signal axes are closely related to liver cancer, renal cancer, colon cancer, breast cancer, etc., allowing FGFR4 to become one of the potential targets for treating liver cancer, renal cancer, colon cancer, breast cancer, etc.

[0005] In clinical applications, FGFR4 inhibitors are not limited to treatment of liver cancer 1 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29 with high expression of FGFR4, and may also be applied to other solid tumors with abnormal FGFR4 signal pathways, meanwhile, FGFR4 inhibitors may possibly be used in combination with other therapies. Therefore, the development of FGFR4 inhibitors has a rather extensive market space and application prospect. SUMMARY OF THE INVENTION

[0006] For overcoming the disadvantages of the prior art, the present disclosure provides a salt form of compound as FGFR4 inhibitor, and a series of crystal forms corresponding to the salt form and free base thereof, thereby providing a plurality of candidate raw materials for the development of the FGFR4 inhibitor as clinical medicament.

[0007] For the characterization of the crystal form of a compound, those skilled in the art can understand that, for a specific crystal form of a specific compound, the 20 angles of the respective diffraction peaks in the X-ray powder diffraction pattern thereof will deviate in duplicate trials due to the influence of equipment, operation method, sample purity, and human factors, and the deviation range (error range) is generally within ± 0.2° ; moreover, those skilled in the art can further understand that the stability and repeatability of the diffraction peaks will be influenced by a combination of 29 angles, absorption intensities of the respective diffraction peaks of the X-ray powder diffraction pattern, and the like; in particular, the diffraction peaks with stronger absorption intensity, better separation and smaller 29 angle have better stability and repeatability, and have greater possibility in characterizing the specific crystal form; as to the diffraction peaks with larger 29 angles and / or poorer separation and / or weaker relative intensity, relatively greater fluctuation is likely to occur due to the influences of instrument equipment, operation methods, sample purity, human factors, and the like, or those diffraction peaks may not repeatedly appear in repeated trials, therefore, for those skilled in the art, such absorption peaks are not essential diffraction peaks for characterizing the crystal form. More specially, the larger 29 angle described herein refers to the 29≥30o, and the peak with weaker absorption intensity refers to that its relative intensity is less than 10%.

[0008] The first object of the present disclosure is to provide a crystal form A of the compound represented by formula (I), wherein the X-ray powder diffraction pattern thereof has the most 2 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 stable and repeatable characteristic diffraction peaks at the following 29 angles: 5.58±0.2°, 21.31±0.2°, 22.97±0.2°.

[0009] Further, in some embodiments of the present disclosure, the X-ray powder diffraction 5 pattern of the crystal form A has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 5.58±0.2°, 12.43±0.2°, 14.56±0.2°, 18.47±0.2°, 20.23±0.2°, 21.31±0.2°, 22.97±0.2°, 25.44±0.2°.

[0010] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form A has secondarily stable and repeatable characteristic diffraction 10 peaks at the following 29 angles: 5.58±0.2°, 12.43±0.2°, 12.77±0.2°, 13.00±0.2°, 14.56±0.2°, 18.47±0.2°, 20.23±0.2°, 21.00±0.2°, 21.31±0.2°, 22.44±0.2°, 22.97±0.2°, 24.86±0.2°, 25.44±0.2°, 27.14±0.2°.

[0011] Further, in an embodiment of the present disclosure, the analytical data of the XRPD pattern of the crystal form A are as shown in Table 1: 15 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 Table 1: XRPD Analytical Data of the Crystal Form A of the Compound Represented by Formula (I)

[0012] Further, in an embodiment of the present disclosure, the XRPD pattern of the crystal form A is as shown in Fig. 1. Number 20 Angle (°) dSpacing (A) Relative Intensity (%) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) 1 5.583 15.8165 7.9 16 22.44 3.9587 13 2 10.946 8.0763 7.6 17 22.973 3.8682 100 3 11.512 7.6803 5.1 18 24.864 3.578 16.5 4 12.427 7.117 21.3 19 25.438 3.4986 59.4 5 12.765 6.9292 24.5 20 27.136 3.2834 12.5 6 13 6.8045 46 21 27.607 3.2284 8.4 7 14.562 6.0779 10.2 22 27.871 3.1985 6.1 8 15.691 5.6431 5.1 23 28.818 3.0955 7.3 9 16.66 5.3169 7.5 24 29.447 3.0308 5.9 10 17.96 4.9348 6.7 25 31.343 2.8516 3.8 11 18.47 4.7998 24.3 26 31.788 2.8127 3.9 12 19.598 4.5259 6 27 32.247 2.7737 4.3 13 20.229 4.3862 29 28 32.584 2.7458 11.3 14 20.999 4.2271 13.2 15 21.311 4.1658 47.9 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29

[0013] In some embodiments of the present disclosure, the differential scanning calorimetric curve of the crystal form A has an endothermic peak with an onset of 174.46°C±3°C.

[0014] Furthermore, in an embodiment of the present disclosure, the DSC pattern of the crystal form A is as shown in Fig. 2.

[0015] In some embodiments of the present disclosure, the thermogravimetric analysis curve of the crystal form A has a weight loss of 0.02335% occurred at 120.00°C±3°C and an additional weight loss of 0.2869% occurred at 200.85oC±3°C.

[0016] Further, in an embodiment of the present disclosure, the TGA pattern of the crystal form A is as shown in Fig. 3.

[0017] The second object of the present disclosure is to provide a crystal form B of the compound represented by formula (I), wherein the X-ray powder diffraction pattern thereof has the most stable and repeatable characteristic diffraction peaks at the following 29 angles: 9.27±0.2°, 12.59±0.2°, 15.98±0.2 °.

[0018] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form B has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 9.27±0.2°, 12.59±0.2°, 15.21±0.2°, 15.98±0.2°, 18.47±0.2°, 20.90±0.2°, 21.79±0.2°, 27.69±0.2°.

[0019] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form B has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 9.27±0.2°, 12.12±0.2°, 12.59±0.2°, 15.21±0.2°, 15.98±0.2°, 18.47±0.2°, 20.90±0.2°, 21.79±0.2°, 22.60±0.2°, 22.85±0.2°, 24.16±0.2°, 24.39±0.2°, 27.69±0.2°.

[0020] Further, in an embodiment of the present disclosure, the analytical data of the XRPD pattern of the crystal form B are as shown in Table 2: 5 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 Table 2: XRPD Analytical Data of the Crystal Form B of the Compound Represented by Formula (I) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) 1 6.149 14.3616 7.6 18 22.853 3.8881 11.1 2 7.044 12.5387 2.2 19 23.404 3.7979 7 3 9.272 9.5304 66.2 20 24.156 3.6812 26.6 4 12.115 7.2994 13 21 24.394 3.6459 28.7 5 12.587 7.0265 100 22 24.685 3.6035 8.4 6 13.97 6.334 7 23 25.182 3.5336 7.4 7 15.212 5.8196 9.3 24 26.365 3.3776 8.6 8 15.982 5.541 21.4 25 27.693 3.2186 24.1 9 18.468 4.8003 15.3 26 28.777 3.0997 6.8 10 19.383 4.5756 5.4 27 29.856 2.9901 3.2 11 19.713 4.4997 9.9 28 31.482 2.8393 5.4 12 20.01 4.4336 5.7 29 32.096 2.7864 1.4 13 20.9 4.2468 56.3 30 33.435 2.6778 7.4 14 21.508 4.1281 9.3 31 35.627 2.5179 3.4 15 21.785 4.0762 33.2 32 36.515 2.4587 4.3 16 22.302 3.9829 5.1 33 37.027 2.4259 5.5 17 22.596 3.9318 12.7 34 38.018 2.3649 4.3 6 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29

[0021] Further, in an embodiment of the present disclosure, the XRPD pattern of the crystal form B is as shown in Fig. 4.

[0022] In some embodiments of the present disclosure, the differential scanning calorimetric curve of the crystal form B has an endothermic peak with an onset of 178.04°C±3°C.

[0023] Further, in an embodiment of the present disclosure, the DSC pattern of the crystal form B is as shown in Fig. 5.

[0024] In some embodiment of the present disclosure, the thermogravimetric analysis curve of the crystal form B has a weight loss of 0.8093% occurred at 120.00oC±3°C, and an additional weight loss of 1.128% occurred at 200.04°C±3°C.

[0025] Further, in an embodiment of the present disclosure, the TGA pattern of the crystal form B is as shown in Fig. 6.

[0026] The third object of the present disclosure is to provide a crystal form C of the compound represented by formula (I), wherein the X-ray powder diffraction pattern thereof has the most stable and repeatable characteristic diffraction peaks at the following 20 angles: 4.35±0.2°, 10.50±0.2°, 12.25±0.2°.

[0027] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form C has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 4.35±0.2°, 8.38±0.2°, 10.50±0.2°, 12.25±0.2°, 12.82±0.2°, 13.45±0.2°, 16.36±0.2°, 18.65±0.2°.

[0028] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form C has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 4.35±0.2°, 8.38±0.2°, 10.50±0.2°, 11.84±0.2°, 12.25±0.2°, 12.82±0.2°, 13.45±0.2°, 16.36±0.2°, 16.64±0.2°, 17.05±0.2°, 17.92±0.2°, 18.65±0.2°, 19.79±0.2°, 20.21±0.2°, 20.52±0.2°, 21.19±0.2°, 22.18±0.2°, 23.23±0.2°, 23.84±0.2°, 24.65±0.2°, 25.67±0.2°, 26.17±0.2°, 28.91±0.2°.

[0029] Further, in an embodiment of the present disclosure, the analytical data of the XRPD pattern of the crystal form C are as shown in Table 3: 7 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 Table 3: XRPD Analytic Data of the Crystal Form C of the Compound Represented by Formula (I) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) 1 4.352 20.2853 13.6 21 21.194 4.1885 17 2 8.378 10.5446 15.3 22 21.628 4.1054 6 3 10.496 8.4216 25.7 23 22.181 4.0043 14.2 4 11.838 7.4697 72.1 24 22.578 3.9349 3.2 5 12.253 7.2178 100 25 23.231 3.8257 10 6 12.824 6.8974 29.9 26 23.838 3.7296 22.9 7 13.453 6.5765 18.3 27 24.65 3.6086 21.2 8 14.131 6.2622 7.7 28 24.984 3.5611 10.5 9 16.359 5.4141 15.1 29 25.673 3.4671 16.2 10 16.637 5.324 11 30 26.169 3.4025 19.1 11 17.047 5.197 19.9 31 26.465 3.3651 9.5 12 17.685 5.011 8.5 32 27.158 3.2808 5.5 13 17.92 4.9458 13 33 27.602 3.229 4.6 14 18.647 4.7545 28.2 34 28.025 3.1813 9.4 15 19.006 4.6656 4.4 35 28.679 3.1102 11.5 16 19.419 4.5673 6.8 36 28.914 3.0853 13.3 17 19.789 4.4827 12 37 30.629 2.9164 5.3 8 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29 18 20.207 4.3909 26.6 38 31.052 2.8776 8.5 19 20.522 4.3241 33.9 39 32.705 2.7359 5.7 20 20.979 4.231 9.2 40 35.821 2.5048 10.3

[0030] Further, in an embodiment of the present disclosure, the XRPD pattern of the crystal form C is as shown in Fig. 7.

[0031] In some embodiments of the present disclosure, the differential scanning calorimetric curve of the crystal form C has an endothermic peak with an onset of 179.19°C±3°C.

[0032] Further, in an embodiment of the present disclosure, the DSC pattern of the crystal form C is as shown in Fig. 8.

[0033] In some embodiments of the present disclosure, the thermogravimetric analysis curve of the crystal form C has a weight loss of 0.4101% occurred at 120.00°C±3°C, and an additional weight loss of 0.2938% occurred at 200.31°C±3°C.

[0034] Further, in an embodiment of the present disclosure, the TGA pattern of the crystal form C is as shown in Fig. 9.

[0035] The fourth object of the present disclosure is to provide a crystal form D of the compound represented by formula (I), wherein the X-ray powder diffraction pattern thereof has the most stable and repeatable characteristic diffraction peaks at the following 29 angles: 5.68±0.2°, 14.68±0.2°, 23.05±0.2°.

[0036] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form D has secondarily stable and repeatable characteristic diffraction peaks at the following 20 angles: 5.68±0.2°, 12.53±0.2°, 14.68±0.2°, 18.55±0.2°, 20.33±0.2°, 21.41±0.2°, 23.05±0.2°, 25.52±0.2°.

[0037] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form D has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 5.68±0.2°, 12.53±0.2°, 13.06±0.2°, 14.68±0.2°, 16.81±0.2°, 9 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 18.55±0.2°, 20.33±0.2°, 20.98±0.2°, 21.41±0.2°, 22.58±0.2°, 23.05±0.2°, 24.96±0.2°, 25.52±0.2°, 27.25±0.2°.

[0038] Further, in an embodiment of the present disclosure, the analytical data of the XRPD pattern of the crystal form D are as shown in Table 4: 5 Table 4: XRPD Analytical Data of the Crystal Form D of the Compound Represented by Formula (I) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) 1 5.679 15.5486 11.7 19 24.964 3.5639 22.4 2 11.008 8.0305 9.5 20 25.517 3.488 67.4 3 11.559 7.6492 4.8 21 26.097 3.4117 3.6 4 12.527 7.0605 31.8 22 26.41 3.372 4.6 5 12.864 6.8762 32.4 23 27.254 3.2694 19.1 6 13.061 6.7726 53.2 24 27.65 3.2235 8.9 7 14.679 6.0296 14.5 25 27.981 3.1861 7.5 8 15.786 5.6092 6 26 28.895 3.0874 9.7 9 16.809 5.2701 10.3 27 29.544 3.021 7 10 18.076 4.9035 9.2 28 31.775 2.8138 5.6 11 18.549 4.7795 32.7 29 32.643 2.7409 16 12 19.657 4.5125 6.5 30 33.692 2.6579 5.7 13 20.325 4.3657 37 31 34.383 2.6061 4.3 14 20.979 4.231 18.3 32 34.737 2.5804 5.5 io Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29

[0039] Further, in an embodiment of the present disclosure, the XRPD pattern of the crystal form D is as shown in Fig. 10. 15 21.409 4.1471 55.2 33 36.87 2.4358 5.3 16 22.281 3.9866 5.4 34 37.936 2.3698 5.6 17 22.575 3.9354 19 35 38.601 2.3305 4.6 18 23.049 3.8555 100

[0040] In some embodiments of the present disclosure, the differential scanning calorimetric curve of the crystal form D has an endothermic peak with an onset of 179.17°C±3°C. 5

[0041] Further, in an embodiment of the present disclosure, the DSC pattern of the crystal form D is as shown in Fig. 11.

[0042] In some embodiments of the present disclosure, the thermogravimetric analysis curve of the crystal form D has a weight loss of 0.6366% at 196.80°C±3°C.

[0043] Further, in an embodiment of the present disclosure, the TGA pattern of the crystal 10 form D is as shown in Fig. 12.

[0044] The fifth object of the present disclosure is to provide a compound represented by formula (II)

[0045] Researchers have found through solubility experiments that the compound represented 15 by formula (II) has a relatively good solubility in a simulated gastric fluid (SGF) and in fasting or satiety state simulated intestinal fluid (FaSSIF). Therefore, the compound represented by formula (II) has a prospect to be developed as medicaments. li Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29

[0046] The sixth object of the present disclosure is to provide a crystal form E of the compound represented by formula (II), wherein the X-ray powder diffraction pattern thereof has the most stable and repeatable characteristic diffraction peaks at the following 29 angles: 5.95±0.2°, 11.77±0.2°, 22.42±0.2°. 5

[0047] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form E has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 5.95±0.2°, 11.77±0.2°, 12.53±0.2°, 18.53±0.2°, 19.28±0.2°, 21.12±0.2°, 22.42±0.2°, 25.76±0.2°.

[0048] Further, in some embodiments of the present disclosure, the X-ray powder diffraction 10 pattern of the crystal form E has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 5.95±0.2°, 11.77±0.2°, 11.98±0.2°, 12.53±0.2°, 18.53±0.2°, 19.28±0.2°, 20.78±0.2°, 21.12±0.2°, 21.50±0.2°, 21.99±0.2°, 22.42±0.2°, 23.01±0.2°, 23.94±0.2°, 24.35±0.2°, 25.06±0.2°, 25.76±0.2°, 27.12±0.2°.

[0049] Further, in an embodiment of the present disclosure, the analytical data of the XRPD 15 pattern of the crystal form E are as shown in Table 5: Table 5: XRPD Analytical Data of the Crystal Form E of the Compound Represented by Formula (II) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) 1 5.95 14.8406 48.3 19 25.063 3.55 15.2 2 10.752 8.2215 3.8 20 25.303 3.517 6.9 3 11.772 7.5112 42.8 21 25.756 3.4561 29.2 4 11.978 7.3828 19.5 22 26.073 3.4148 7.1 5 12.529 7.0591 36.9 23 26.368 3.3772 9 6 17.599 5.0353 4.1 24 26.681 3.3383 11 12 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 7 18.528 4.7847 27.8 25 27.116 3.2857 14.4 8 19.281 4.5996 27.1 26 28.653 3.1129 8.7 9 20.111 4.4117 6.6 27 29.423 3.0332 2.4 10 20.445 4.3403 4.2 28 30.023 2.9739 11.4 11 20.781 4.271 24 29 30.828 2.8981 10.6 12 21.115 4.204 59.7 30 31.341 2.8518 17.4 13 21.495 4.1307 20.7 31 31.933 2.8002 9 14 21.985 4.0397 15.5 32 32.464 2.7556 6.4 15 22.418 3.9627 100 33 32.841 2.7248 4.7 16 23.01 3.8619 18.4 34 33.315 2.6872 4.9 17 23.942 3.7137 18.6 35 34.974 2.5634 27.3 18 24.353 3.6519 33 36 37.639 2.3878 7.6

[0050] Further, in an embodiment of the present disclosure, the XRPD pattern of the crystal form E is as shown in Fig. 13.

[0051] In some embodiments of the present disclosure, the differential scanning calorimetric curve of the crystal form E has an endothermic peak with an onset of 193.78°C±3°C and an 5 exothermic peak at 198.70°C±3°C.

[0052] Further, in an embodiment of the present disclosure, the DSC pattern of the crystal form E is as shown in Fig. 14.

[0053] In some embodiments of the present disclosure, the thermogravimetric analysis curve of the crystal form E has a TGA curve with a weight loss of 1.086% occurred at 170.64°C±3°C 10 and an additional weight loss of 1.652% occurred at 210.29°C±3°C. 13 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29

[0054] Further, in an embodiment of the present disclosure, the TGA pattern of the crystal form E is as shown in Fig. 15.

[0055] The seventh object of the present disclosure is to provide a crystal form F of the compound represented by formula (II), wherein the X-ray powder diffraction pattern thereof 5 has the most stable and repeatable characteristic diffraction peaks at the following 20 angles: 6.04±0.2°, 9.21±0.2°, 12.51±0.2°.

[0056] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form F has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 6.04±0.2°, 9.21±0.2°, 12.02±0.2°, 12.51±0.2°, 15.89±0.2°, 10 18.35±0.2°, 20.84±0.2°, 21.67±0.2°.

[0057] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form F has secondarily stable and repeatable characteristic diffraction peaks at the following 29 angles: 6.04±0.2°, 9.21±0.2°, 12.02±0.2°, 12.51±0.2°, 15.89±0.2°, 18.35±0.2°, 19.71±0.2°, 20.84±0.2°, 21.67±0.2°, 22.59±0.2°, 24.14±0.2°, 27.64±0.2°. 15

[0058] Further, in an embodiment of the present disclosure, the analytical data of the XRPD pattern of the crystal form F are as shown in Table 6: Table 6: XRPD Analytical Data of Crystal Form F of the Compound Represented by Formula (II) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) 1 6.036 14.6291 19.8 17 24.136 3.6842 28.5 2 9.209 9.5948 100 18 24.647 3.609 9.3 3 12.017 7.3589 17 19 25.048 3.5522 4.5 4 12.509 7.0705 98.6 20 26.288 3.3873 7.3 5 13.889 6.3709 7.9 21 27.136 3.2834 4 14 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 6 15.114 5.8572 9.1 22 27.649 3.2236 18.3 7 15.885 5.5745 22.1 23 28.481 3.1313 4.1 8 18.352 4.8302 15.2 24 28.831 3.0941 6.2 9 19.286 4.5984 4 25 29.781 2.9975 3.2 10 19.71 4.5004 12.6 26 31.479 2.8396 4.9 11 20.027 4.43 7.2 27 33.354 2.6841 5.9 12 20.839 4.2592 51.1 28 33.588 2.6659 4.8 13 21.669 4.0977 32.7 29 36.511 2.4589 4.7 14 22.324 3.9791 5.9 30 36.944 2.4311 4.2 15 22.594 3.9321 14.7 31 37.953 2.3688 2.8 16 23.348 3.8069 7.6

[0059] Further, in an embodiment of the present disclosure, the XRPD pattern of the crystal form F is as shown in Fig.16.

[0060] In some embodiments of the present disclosure, the differential scanning calorimetric curve of the crystal form F has an endothermic peak with an onset of 155.72°C±3°C. 5

[0061] Further, in an embodiment of the present disclosure, the DSC pattern of the crystal form F is as shown in Fig. 17.

[0062] In some embodiments of the present disclosure, the TGA curve of the crystal form F has a weight loss of 0.6525% occurred at 120°C±3°C, and an additional weight loss of 1.138% occurred at 205.16°C±3°C. 10

[0063] Further, in an embodiment of the present disclosure, the TGA pattern of the crystal form F is as shown in Fig. 18. 15 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29

[0064] The eighth object of the present disclosure is to provide a compound represented by formula (III)

[0065] Researchers have found through solubility experiments that the compound represented by formula (III) also has a relatively good solubility in a simulated gastric fluid (SGF) and in fasting or satiety state simulated intestinal fluid (FaSSIF). Therefore, the compound represented by formula (III) also has a prospect to be developed as medicaments.

[0066] The ninth object of the present disclosure is to provide a crystal form G of the compound represented by formula (III), wherein the X-ray powder diffraction pattern thereof has the most stable and repeatable characteristic diffraction peaks at the following 20 angles: 5.86±0.2°, 11.62±0.2°, 22.81±0.2°.

[0067] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form G has secondarily stable and repeatable characteristic diffraction peaks at the following 20 angles: 5.86±0.2°, 11.62±0.2°, 12.31±0.2°, 19.22±0.2°, 20.03±0.2°, 22.81±0.2°, 23.68±0.2°, 24.75±0.2°.

[0068] Further, in some embodiments of the present disclosure, the X-ray powder diffraction pattern of the crystal form G has secondarily stable and repeatable characteristic diffraction peaks at the following 20 angles: 5.86±0.2°, 11.62±0.2°, 12.31±0.2°, 19.22±0.2°, 20.03±0.2°, 20.84±0.2°, 21.18±0.2°, 21.63±0.2°, 22.81±0.2°, 23.68±0.2°, 24.75±0.2°, 26.23±0.2°, 26.82±0.2°.

[0069] Further, in an embodiment of the present disclosure, the analytical data of the XRPD pattern of the crystal form G are as shown in Table 7: 16 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 Table 7 XRPD Analytic Data of Crystal Form G of the Compound Represented by Formula (III)

[0070] Further, in an embodiment of the present disclosure, the XRPD pattern of the crystal form G is as shown in Fig. 19. Number 20 Angle (°) dSpacing (A) Relative Intensity (%) Number 20 Angle (°) dSpacing (A) Relative Intensity (%) 1 5.857 15.0769 30.6 15 26.229 3.3948 26.9 2 10.558 8.3719 6.1 16 26.821 3.3212 17.5 3 11.624 7.6067 37.4 17 27.333 3.2601 5.5 4 12.31 7.1843 22.8 18 28.968 3.0797 8.5 5 19.22 4.6141 33 19 29.168 3.0591 4.5 6 20.028 4.4297 26.3 20 30.298 2.9475 10.6 7 20.839 4.2591 43.6 21 30.612 2.918 9.1 8 21.175 4.1923 22.3 22 31.599 2.8291 17.2 9 21.63 4.1051 14.4 23 31.868 2.8058 6.9 10 22.186 4.0036 4.7 24 32.707 2.7358 3.6 11 22.812 3.8951 100 25 35.15 2.551 19.5 12 23.682 3.7538 30.6 26 37.897 2.3721 5.3 13 24.746 3.5948 53.3 27 38.823 2.3177 7.9 14 25.175 3.5345 6.6 5

[0071] In some embodiments of the present disclosure, the differential scanning calorimetric curve of the crystal form G has an endothermic peak at 164.93°C±3°C. 17 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29

[0072] Further, in an embodiment of the present disclosure, the DSC pattern of the crystal form G is as shown in Fig. 20.

[0073] In some embodiments of the present disclosure, the thermogravimetric analysis curve of the crystal form G has a weight loss of 0.2051% occurred at 120°C±3°C, and an additional weight loss of 2.867% occurred at 218.92°C±3°C.

[0074] Further, in an embodiment of the present disclosure, the TGA pattern of the crystal form G is as shown in Fig. 21.

[0075] The last object of the present disclosure is to further provide a method for preparing a crystal form B of the compound represented by formula (I), comprising preparing the crystal form B by adding the compound represented by formula (I) into a solvent, heating and stirring, or by carrying out recrystallization.

[0076] In some embodiments of the present disclosure, in the preparation method, the solvent is selected from: methanol, ethanol, acetone, tetrahydrofuran, isopropanol or ethanol-water.

[0077] In some embodiments of the present disclosure, in the preparation method, the stirring temperature is selected to be 10°C to 45°C.

[0078] In some embodiments of the present disclosure, in the preparation method, the slurrying time is 10 hours to 60 hours.

[0079] In some embodiments of the present disclosure, in the preparation method, the weight¬ volume ratio of the compound to the solvent is 1:8-15 g / mL.

[0080] The present disclosure further provides the use of the compounds or the crystal forms A-G in the manufacture of a medicament for treating FGFR4 related disease. Definition and Description

[0081] Unless otherwise stated, the following terms and phrases used herein are intended to have the following meanings. A specific phrase or term without specific definition should not be considered uncertain or unclear, but should be understood in line with its ordinary meaning. When a trade name is used herein, it is intended to refer to the corresponding commercially available product or its active ingredient(s). 18 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29

[0082] The intermediate compound(s) of the present disclosure can be prepared by a variety of synthetic methods well known by those skilled in the art, including the specific embodiments as listed below, the embodiments formed by a combination of those embodiments with other chemical synthesis methods, as well as equivalent alternatives well known by those skilled in the art. Preferred embodiments include, but are not limited to, the embodiments of the present disclosure.

[0083] The chemical reaction(s) of the specific embodiments of the present disclosure is carried out in a suitable solvent which should be suitable for the chemical changes of the present disclosure and the required reagents and materials. In order to obtain the compounds of the present disclosure, those skilled in the art sometimes need to modify or make selection on the synthesis steps or the reaction process based on the existing embodiments.

[0084] Hereinafter the present disclosure will be described in details by reference to the embodiments which do not indicate any limitation to the present disclosure.

[0085] All the solvents used in the present disclosure are commercially available, and can be used without further purification.

[0086] The following abbreviations are used in the present disclosure: r.t. represents room temperature; THF represents tetrahydrofuran; NMP represents A-methylpyrrolidone; MeSOsH represents methanesulfonic acid; DME represents 1,2-dimethoxyethane; DCM represents dichloromethane; Xphos represents 2-dicyclohexylphosphino-2’4’6’-Zrz-isopropylbiphenyl; EtOAc represents ethyl acetate; MeOH represents methanol; acetone represents propanone; 2- Me-THF represents 2-methyltetrahydrofuran; IPA represents isopropanol; m-CPBA represents 3-chloroperoxybenzoic acid; Pd(dppf)C12 represents [1,1’- bis(diphenylphosphino)ferrocene]palladium dichloride; DIEA represents A,Adiisopropylethylamine; DMSO represents dimethylsulfoxide; HEPES represents 4- hydroxyethylpiperazine ethanesulfonic acid; and EGTA represents ethylene glycol bis(2- aminoethyl ether) tetraacetic acid.

[0087] Compounds are named manually or by ChemDraw® software, and commercially available compounds are named with supplier catalog names. X-Ray Powder Diffractometer (XRPD) Method of the Present Invention 19 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29

[0088] Instrument model: Bruker D8 advance X-ray diffractometer

[0089] Test method: About 10-20 mg sample was used for XRPD detection.

[0090] The detailed XRPD parameters are as follows:

[0091] X-ray tube: Cu, ka, (l=1.54056A).

[0092] X-ray tube voltage: 40 kV, X-ray tube current: 40 mA

[0093] Divergence slit: 0.60 mm

[0094] Detector slit: 10.50 mm

[0095] Anti-scattering slit: 7.10 mm

[0096] Scan range: 4-40 deg

[0097] Step size: 0.02 deg

[0098] Step length: 0.12 second

[0099] Rotation speed of sample tray: 15 rpm

[0100] Those skilled in the art can understand that, during the analysis process of the obtained XRPD pattern, the relevant data can be subjected to appropriate scientific processing, such as baseline correction processing, in order to reduce errors. Differential Scanning Calorimeter (DSC) Method of the Present Invention

[0101] Instrument model: TA Q2000 Differential Scanning Calorimeter

[0102] Test method: A sample (about 1 mg) was placed into a DSC aluminum crucible for test, under the condition of 50mL / min N2, the sample was heated at a heating rate of 10°C / min from 30°C (room temperature) to 300°C (or 350°C). Thermal Gravimetric Analyzer (TGA) Method of the Present Invention

[0103] Instrument model: TA Q5000IR TGA Instrument

[0104] Test method: A sample (2-5mg) was placed in a TGA platinum crucible for test, under 20 Date ReQue / Date Received 2020-04-295 10 15 CA 03080827 2020-04-29 the condition of 25mL / min N?? the sample was heated at a heating rate of 10°C / min from room temperature to 300°C or a weight loss of 20%. X-Ray Powder Diffractor (XRPD)

[0105] Test conditions: About 10-20 mg sample was used for XRPD detection.

[0106] X-ray tube: Cu, K- Alpha, (u, K- AlpA)

[0107] X-ray tube voltage: 40 kV, X-ray tube current: 40 mA

[0108] Divergence slit: 0.60 mm

[0109] Detector slit: 10.50 mm

[0110] Anti-scattering slit: 7.10 mm

[0111] Scan range: 4-40 deg

[0112] Step length: 0.02 deg

[0113] Rate: 0.12 S

[0114] Rotation speed of sample tray: 15 rpm High Performance Liquid Chromatograph (HPLC)

[0115] The analytical method is as follows: Table 8-1: Method for Measuring Content by HPLC Analysis* Instrument Agilent 1200 High Performance Liquid Chromatograph (PDS-PF-HPLC-02 or PDS-PF-HPLC-01) Column Ascentis Express Cl8 (4.6 xl50 mm, 2.7 pm) (PDS-HPLC-94) Mobile phase A 0.1% phosphoric acid aqueous solution Mobile phase B 100% acetonitrile Flow rate 1 mL / min Iniection volume 10 pL 21 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29

[0116] *The method was used for detecting the crystal forms B and E in the specific embodiments. Detection wavelength 280 nm Column temperature 40°C Diluent A,A-dimethylformamide: acetonitrile 50 / 50 (v / v) or acetonitrile: water 1 / 1 (v / v) Gradient elution procedure Time (min) Mobile phase A (%) Mobile phase B (%) 0.00 90 10 13.00 5 95 15.00 5 95 15.01 90 10 18.00 90 10 Table 8-2: Method for Measuring Content by HPLC Analysis ** Instrument Agilent 1200 High Performance Liquid Chromatograph tPDS-PF-HPLC-02 or PDS-PF-HPLC-0D Column Agilent Eclipse C18 (4.6 xl50 mm, 3.5 pm) Mobile phase A 0.04% trifluoroacetic acid solution Mobile phase B 100% acetonitrile Flow rate 1 mL / min Injection volume 10 pL Detection wavelength 230 nm Column temperature 40°C 22 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 Diluent acetonitrile: water 50 / 50 (v / v) Gradient elution procedure Time (min) Mobile phase A (%) Mobile phase B (%) 0.00 75 25 50.00 30 70 55.00 15 85 55.01 75 25 60 75 25

[0117] ** The method was used for detecting the crystal forms A, C, D, and F in the specific embodiments. Technical Effects

[0118] The crystal forms of the compounds represented by formula (I), (II) or (III) as described 5 in the present disclosure have good stability and are easy to be made into medicaments; the core structure of the compound of the present disclosure having acrylamide and fluoroolefin bond can result in a series of highly FGFR4-selective compounds, which exhibits excellent inhibitory activity on FGFR4 kinase, but have no activity on the subtype of FGFR1 kinase, and the selectivity is at least 10 times or even more than 100 times. 10 BRIEF DESCRIPTION OF THE DRAWINGS

[0119] Fig. 1: the XRPD pattern measured by Cu-Ka radiation of the crystal form A of the compound represented by formula (I).

[0120] Fig. 2: the DSC pattern of the crystal form A of the compound represented by formula (I). 15

[0121] Fig. 3: the TGA pattern of the crystal form A of the compound represented by formula (I).

[0122] Fig. 4: the XRPD pattern measured by Cu-Ka radiation of the crystal form B of the compound represented by formula (I). 23 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29

[0123] Fig. 5: the DSC pattern of the crystal form B of the compound represented by formula (I).

[0124] Fig. 6: the TGA pattern of the crystal form B of the compound represented by formula (I).

[0125] Fig. 7: the XRPD pattern measured by Cu-Ka radiation of the crystal form C of the compound represented by formula (I).

[0126] Fig. 8: the DSC pattern of the crystal form C of the compound represented by formula (I).

[0127] Fig. 9: the TGA pattern of the crystal form C of the compound represented by formula (I).

[0128] Fig. 10: the XRPD pattern measured by Cu-Ka radiation of the crystal form D of the compound represented by formula (I).

[0129] Fig. 11: the DSC pattern of the crystal form D of the compound represented by formula (I).

[0130] Fig. 12: the TGA pattern of the crystal form D of the compound represented by formula (I).

[0131] Fig. 13: the XRPD pattern measured by Cu-Ka radiation of the crystal form E of the compound represented byformula (II).

[0132] Fig. 14: the DSC pattern of the crystal form E of the compound represented by formula (II).

[0133] Fig. 15: the TGA pattern of the crystal form E of the compound represented by formula (II).

[0134] Fig. 16: the XRPD pattern measured by Cu-Ka radiation of the crystal form F of the compound represented by formula (II).

[0135] Fig. 17: the DSC pattern of the crystal form F of the compound represented by formula (II). 24 Date Re^ue / Date Received 2020-04-29CA 03080827 2020-04-29

[0136] Fig. 18: the TGA pattern of the crystal form F of the compound represented by formula (II).

[0137] Fig. 19: the XRPD pattern measured by Cu-Ka radiation of the crystal form G of the compound represented by formula (III). 5

[0138] Fig. 20: the DSC pattern of the crystal form G of the compound represented by formula (III).

[0139] Fig. 21: the TGA pattern of the crystal form G of the compound represented by formula (III). DETAILED DESCRIPTION OF THE EMBODIMENTS 10

[0140] In order to better understand the content of the present disclosure, the following embodiments further illustrate the present disclosure, but the present disclosure is not limited thereto.

[0141] Embodiment 1: Synthesis of the Compound represented by Formula (I) o 15 25 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29

[0142] Embodiment 1A o

[0143] 2,5-dihydrofuran (80.00 g, 1.14 mol, 86.02 mL) was dissolved into 1000 mL DCM, then m-CPBA (277.74 g, 1.37 mol) was added in batches, and the reaction solution was reacted at room temperature for 14hours. The reaction was monitored by TLC. After the completion of the reaction, the reaction solution was filtered to remove the solid, and the filtrate was washed with saturated sodium sulfite solution until starch-KI test paper does not turn blue, and then washed with saturated sodium bicarbonate solution until the pH of the solution was 7-8. The organic phase was dried over anhydrous sodium sulfate, filtered and subjected to rotary evaporation to remove the solvent to give 48.50 g yellow product of Embodiment 1A without further purification, the yield was 49.4%.

[0144] 'H NMR (400 MHz, CHLOROFORM-d) 6 3.99 (d, J=10.29 Hz, 2H), 3.77 (s, 2H), 3.63 (d, 7=10.54 Hz, 2H).

[0145] Embodiment IB H2N OH 7

[0146] Embodiment 1A (24.00 g, 278.78 mmol) and ammonium hydroxide (218.40 g, 1.74 mol, 240.00 mL) were added to a reaction flask, and the reaction solution was reacted at 100°C for 14 hours. The reaction was monitored by TLC. After the completion of the reaction, the reaction solution was subjected to rotary evaporation to remove the solvent to give 23.70 g crude product of Embodiment IB in brown oil form with a yield of 82.4%.

[0147] 1HNMR(400MHz, CHLOROFORM-d) 6 4.00-4.16 (m, 3H), 3.63-3.81 (m, 1H), 3.48- 3.59 (m, 1H), 3.34-3.45 (m, 1H).

[0148] Embodiment IC 26 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29 Boc'NH OH u

[0149] Embodiment IB (23.70 g, 229.83 mmol) was dissolved into 200 mL methanol, triethylamine (4.65 g, 45.97 mmol, 6.37 mL) was added, and Boc-anhydride (65.21 g, 298.78 mmol, 68.64 mL) was added dropwise, the reaction solution was reacted at room temperature for 3 hours. The reaction was monitored by TLC (preparative thin layer chromatograph). After the completion of the reaction, the reaction solution was subjected to rotary evaporation to remove the solvent, and then 100 mL methyl Z-butyl ether was added. The reaction solution was stirred for 15 min and filtered. The resultant filter cake was the product, and no further purification was required. 38.78 g Embodiment IC in pale yellow solid form was obtained with a yield of 83.0%.

[0150] 'H NMR (400 MHz, CHLOROFORM-d) 6 4.78 (br s, 1H), 4.24-4.31 (m, 1H), 3.98- 4.13 (m, 2H), 3.94 (br s, 1H), 3.66-3.73 (m, 1H), 3.62 (dd, J=2.76, 9.29 Hz, 1H), 1.44 (s, 9H)

[0151] Embodiment ID

[0152] Embodiment IC (38.78 g, 190.82 mmol), phthalimide (33.69 g, 228.98 mmol) and triphenylphosphine (PPhs) (60.06 g, 228.98 mmol) were dissolved into 500 mLTHF, dimethyl azodicarboxylate (46.30 g, 228.98 mmol, 44.52 mL) was added, the obtained reaction solution was reacted at room temperature for 14 hours. The reaction was monitored by TLC. After the completion of the reaction, the reaction solution was subjected to rotary evaporation to remove the solvent, and purified by silica gel column (PE / EA=3 / 1, Rf=0.37) to give 85.50 g white solid product of Embodiment ID.

[0153] XH NMR (400 MHz, CHLOROFORM-d) 6 7.85-7.88 (m, 2H), 7.74-7.76 (m, 2H), 4.88 (br d, J=9.54 Hz, 1H), 4.44-4.55 (m, 1H), 4.37 (br t, J=8.16 Hz, 1H), 4.12-4.21 (m, 2H), 3.78- 3.90 (m, 1H), 1.10 (s, 9H) 27 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29

[0154] Embodiment IE BOC^N< ,NH2 Q

[0155] Embodiment ID (85.50 g, 257.26 mmol) was dissolved into 850 mL anhydrous ethanol, hydrazine hydrate (75.76 g, 2572.6 mmol, 73.55 mL) was added, and the obtained reaction solution was reacted at 80°C for 1 hour. The reaction was monitored by TLC. After the completion of the reaction, the reaction solution was filtered to remove the generated white solid, and subjected to rotary evaporation to remove the solvent, followed by addition of 200 mL DCM. The reaction solution was filtered to remove the undissolved solid, and subjected to rotary evaporation to remove solvent to give 49.6 g crude product of embodiment IE in light yellow solid form without further purification.

[0156] 'H NMR (400 MHz, CHLOROFORM-d) 6 5.32 (br s, 1H), 4.06-4.17 (m, 1H), 3.94- 4.05 (m, 2H), 3.52-3.62 (m, 2H), 3.47 (dd, J=5.02, 9.03 Hz, 1H), 1.36-1.50 (m, 9H).

[0157] Embodiment IF

[0158] Embodiment IE (14.00 g, 69.22 mmol) and 2-chloro-5-bromopyrimidine (11.38 g, 58.84 mmol) were dissolved into 100 mL NMP, NaHCOs (17.45 g, 207.66 mmol) was added, and the obtained reaction solution was reacted at 110°C for 14 hours. The reaction was monitored by TLC. After the completion of the reaction, 300 mL ethyl acetate was added, and then the reaction solution was washed with saturated brine (200 mL*3). The organic phase was dried over anhydrous sodium sulfate, filtered, subjected to rotary evaporation to remove the solvent, and purified by silica gel column (PE / EA=3 / 1, Rf=0.41) to give 15.66 g yellow solid of Embodiment IF with a yield of 62.97%.

[0159] XH NMR (400 MHz, CHLOROFORM-d) 6 8.30 (s, 2H), 5.71 (br s, 1H), 4.58-4.70 (m, 1H), 4.44 (br s, 1H), 4.03-4.11 (m, 2H), 3.63-3.73 (m, 2H), 2.04 (s, 4H), 1.38 (s, 9H). 28 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29

[0160] Embodiment 16A OgN

[0161] At 0°C, under nitrogen protection, tetrabromomethane (79.83 g, 240.72 mmol, 2.00 eq.) was added to a solution of triphenylphosphine (126.28 g, 481.43 mmol, 4.00 eq.) in dichloromethane (400.00 mL), and the obtained reaction solution was reacted at 0°C for additional 5 min. 3,5-dimethoxybenzaldehyde (20.00 g, 120.36 mmol, 1.00 eq.) was added to the reaction solution, and the reaction solution was stirred at 0°C for 4 hours. TLC detected that the starting materials were completely reacted, and a new point with a relatively high polarity was formed. Two batches of reaction solutions were combined, filtered, concentrated under vacuum, washed with 600 mL ethyl acetate, filtered, concentrated under vacuum, purified by column chromatography with a ratio of petroleum ether / ethyl acetate=20 / l to give a white solid of Embodiment 16A (39.92 g, yield: 84.20%).

[0162] 1 H NMR (400 MHz, CHLOROFORM-d) Shift 7.42 (s, 1H), 6.69 (d, . / =2.26 Hz, 2H), 6.46 (t, . / =2.26 Hz, 1H), 3.80 (s, 6H)

[0163] Embodiment 16B

[0164] Tetrabutylammonium fluoride trihydrate (195.96 g, 621.10 mmol, 10.00 eq.) was added to a solution of Embodiment 16A (20.00 g, 62.11 mmol, 1.00 eq.) in toluene (600 mL), and the reaction solution was reacted at 110°C for 16 hours. TLC showed that the starting materials were completely reacted. The reaction solution was diluted with 1200 mL water, 29 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29

[0166] Embodiment 16C

[0169] Embodiment 16D 30 and extracted with 900 mL ethyl acetate. The organic phase was dried over anhydrous sodium sulfate, filtered, concentrated under vacuum, and purified by column chromatography with a ratio of petroleum ether / ethyl acetate=20 / l to give a yellow liquid of Embodiment 16B (12.84 g, yield: 79.18%).

[0168] 'H NMR (400 MHz, CHLOROFORM-d) Shift 6.57 (s, 1H), 5.78-5.87 (m, 1H), 3.94 (s, 6H)

[0165] 'HNMR (400 MHz, CHLOROFORM-d) Shift 6.65 (d,J=2.26 Hz, 1H), 6.62 (d,. / =2.26 Hz, 2H), 6.07-6.16 (m, 1H), 3.80 (s, 6H)

[0167] A solution of sulfonyl chloride (32.05 g, 237.48 mmol, 23.74 mL, 2.50 eq.) in tetrahydrofuran (15 mL) was added dropwise to a solution of Embodiment 16B (24.80 g, 94.99 mmol, 1.00 eq.) in tetrahydrofuran (500.00 mL) at -5°C, the reaction solution was reacted at - 5°C to 5°C for 3 hours. An additional solution of sulfonyl chloride (1 mL) in tetrahydrofuran (10 mL) was added, and the reaction solution was reacted for another 1 hour at -5°C to 5°C. TLC detected that the reaction was complete, and the reaction solution was quenched with a saturated aqueous solution of sodium bicarbonate (150 mL), and extracted with ethyl acetate (70mL for each time) for three times. The organic phase was dried over anhydrous sodium sulfate, filtered, dried and concentrated, purified by column chromatography with a ratio of petroleum ether / ethyl acetate=9 / l to give a yellow solid of Embodiment 16C (27.75 g, yield: 88.53%). Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29 0

[0170] Tri(dibenzylideneacetone)dipalladium (5.55 g, 6.06 mmol, 0.10 eq.), tricyclohexylphosphine (6.80 g, 24.24 mmol, 0.40 eq.), and potassium acetate (23.79 g, 242.44 mmol, 4.00 eq.) were added to a solution of Embodiment 16C (20.00 g, 60.61 mmol, 1.00 eq.) and bis(pinacolato)diboron (30.78 g, 121.22 mmol, 2.00 eq.) in dioxane (300 mL), and the reaction solution was reacted at 90°C under nitrogen protection for 16 hours. TLC detected that the reaction was complete, the reaction solution was filtered, concentrated under vacuum, and purified by column chromatography with a ratio of petroleum ether / ethyl acetate=4 / l to give a yellow solid of Embodiment 16D (16.82 g, yield: 73.60%).

[0171] 'H NMR (400 MHz, CHLOROFORM-d) Shift 6.59 (s, 1H), 4.82-4.97 (m, 1H), 3.92 (s, 6H), 1.25-1.28 (m, 12H), 1.17-1.19 (m, 1H)

[0172] Embodiment 1G

[0173] Embodiment IF (15.62 g, 43.47 mmol) and Embodiment 16D (14.90 g, 39.52 mmol) were dissolved into 150 mL 1,4-dioxane and 75 mL water, Pd(dppf)C12 (2.89 g, 3.95 mmol, 0.10 eq) and K3PO4 (16.78 g, 79.04 mmol, 2.00 eq) were added, and the obtained reaction solution was reacted at 95°C under nitrogen protection for 14 hours. The reaction was monitored by TLC. After the completion of the reaction, 300 mL ethyl acetate was added, and then the reaction solution was washed with saturated brine (200 mL*3). The organic phase was dried over anhydrous sodium sulfate, filtered and subjected to rotary evaporation to remove the solvent, and purified by silica gel column (PE / EA=1 / 1, Rf=0.43) to give 4.6 g of a yellow solid of Embodiment 1G, the yield was 21.99%. Date ReQue / Date Received 2020-04-29 315 10 15 20 CA 03080827 2020-04-29

[0174] 1HNMR(400MHz, CHLOROFORM-d) 6 8.57 (s, 2H), 6.64 (s, 1H), 5.79 (br d, J=6.53 Hz, 1H), 5.58-5.72 (m, 1H), 5.09 (br s, 1H), 4.70-4.80 (m, 1H), 4.47 (br s, 1H), 4.12-4.23 (m, 2H), 3.72 (br d, J=6.78 Hz, 2H), 1.39 (s, 9H)

[0175] Embodiment 1H

[0176] Embodiment 1G (4.60 g, 8.69 mmol) was dissolved into 30 mL DCM, trifluoroacetic acid (15.40 g, 135.04 mmol, 10.00 mL) was added dropwise, and the obtained reaction solution was reacted at room temperature for 30 min. The reaction was monitored by LC-MS. After the completion of the reaction, the solvent was removed by rotary evaporation, and 7.20 g tan solid crude product of Embodiment 1H was obtained without further purification.

[0177] LCMS (ESI):429 (M+l) +

[0178] Embodiment II

[0179] Embodiment 1H (7.20 g, 13.25 mmol) was dissolved into 40 mL DCM, and DIEA (6.85 g, 53.00 mmol, 9.26 mL) was added, the reaction solution was cooled to 0°C, acryloyl chloride (599.63 mg, 6.63 mmol, 540.21 uL) was added, the reaction solution was heated to room temperature and reacted for 20 min. The reaction was monitored by LC-MS, after the completion of the reaction, the reaction was quenched by adding 30 mL water, and then the reaction solution was extracted with DCM (15 mL*3), the organic phases were combined, and washed with 40 mL saturated brine, dried over anhydrous sodium sulfate, filtered, subjected to 32 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29 rotary evaporation to dryness, and purified by silica gel column (initially, PE / EA=1 / 1, and then DCM / MeOH=10 / l) to give 2.7 g Embodiment II.

[0180] Compound represented by Formula (I)

[0181] Embodiment 1J 1J

[0182] Embodiment 11(2.7 g, 5.59mmol) was resolved by SFC (column: OD (250mm*30mm, 5um); Mobile phase: [0.1%NH3H2O EtOH]; B%: 40%-40%, lOmin) to give 830 mg Embodiment 1J (purity: 98.43%) with a retention time of 5.204, and 610mg the compound represented by formula (I) (purity: 99.22%) with a retention time of 7.294.

[0183] Embodiment 1J: 'H NMR (400 MHz, CHLOROFORM-d) 6 8.57 (s, 2H), 6.65 (s, 1H), 6.38 (br d, . / =6.53 Hz, 1H), 6.25 (dd, J=1.13, 16.94 Hz, 1H), 5.98-6.11 (m, 1H), 5.59-5.78 (m, 3H), 4.70-4.85 (m, 2H), 4.20 (ddd, J=6.02, 9.47, 12.36 Hz, 2H), 3.92-3.98 (m, 6H), 3.70-3.83 (m, 2H).

[0184] The compound represented by formula (I): 'H NMR (400 MHz, CHLOROFORM-d) 6 8.58 (s, 2H), 6.65 (s, 1H), 6.35 (br d, J=6.27 Hz, 1H), 6.21-6.29 (m, 1H), 5.99-6.10 (m, 1H), 5.59-5.74 (m, 3H), 4.69-4.82 (m, 2H), 4.20 (ddd, J=6.02, 9.47, 13.11 Hz, 2H), 3.95 (s, 6H), 3.77 (ddd, . / =4.52, 9.54, 16.56 Hz, 2H).

[0185] Embodiment 2: Preparation of the Crystal Form A of the Compound represented by Formula (I)

[0186] 30 mg of the compound represented by formula (I) was weighed and added into a glass 33 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29 flask, 400 pL acetonitrile-water (1:1) was added to form a suspension. A sample of the suspension was placed on a magnetic stirrer (40°C) for a dark stirring experiment. The sample of the suspension was centrifuged after stirring at 40°C for 2 days, and then the residual sample was dried in a vacuum drying oven (30°C) overnight to give a crystal form A of the compound represented by formula (I). The XRPD pattern of the crystal form A of the compound represented by formula (I) is shown in Fig. 1, the DSC pattern is shown in Fig. 2, and the TGA pattern is shown in Fig. 3.

[0187] In this Embodiment, the crystal form A was obtained after stirring in the acetonitrilewater system for 2 days, and thus it can be seen that the crystal form A has a substantially high stability in the acetonitrile-water solution.

[0188] Embodiment 3: Preparation of the Crystal Form A of the Compound represented by Formula (I)

[0189] 30 mg of the compound represented by formula (I) was weighed and added into a glass flask, and 400 pL ethyl acetate was added to form a suspension. A sample of the suspension was placed on a magnetic stirrer (40°C) for dark stirring experiment. The sample of the suspension was centrifuged after stirring at 40°C for 2 days, and then the residual sample was dried in a vacuum drying oven (30°C) overnight. The crystal form was detected by XRPD to give a crystal form A of the compound represented by formula (I).

[0190] In this Embodiment, the crystal form A was obtained after stirring in the ethyl acetate system for 2 days, and thus it can be seen that the crystal form A has a substantially high stability in the ethyl acetate solution.

[0191] Embodiment 4: Preparation of the Crystal Form B of the Compound represented by Formula (I)

[0192] 30 mg of the compound represented by formula (I) was weighed and added into a glass flask, and 400 pL methanol was added to form a suspension. A sample of the suspension was placed on a magnetic stirrer (40°C) for dark stirring experiment. The sample of the suspension was centrifuged after stirring at 40°C for 2 days, and then the residual sample was dried in a vacuum drying oven (30°C) overnight to give a crystal form B of the compound represented by formula (I). The XRPD pattern of the crystal form B of the compound represented by formula 34 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29 (I) is shown in Fig. 4, the DSC pattern is shown in FIG. 5, and the TGA pattern is shown in Fig. 6.

[0193] In this Embodiment, the crystal form B was obtained after stirring in a methanol system for 2 days, and thus it can be seen that the crystal form B has a substantially high stability in the methanol solution.

[0194] Embodiment 5: Preparation of the Crystal Form B of the Compound represented by Formula (I)

[0195] 500 mg of the compound represented by formula (I) was weighed and added into a 10mL glass flask, and 5 mL ethanol was added to form a suspension. A sample of the suspension was placed on a magnetic stirrer at 10-20°C for stirring, and filtered after 12 hours. The residual solid of the sample was subjected to rotary evaporation to dryness, and subjected to XRPD detection for its crystal form to give a crystal form B of the compound represented by formula (I).

[0196] Embodiment 6: Preparation of the Crystal Form C of the Compound represented by Formula (I)

[0197] 50 mg of the compound represented by formula (I) was weighed and added into a 1.5mL liquid vial, and 200 pL methanol was added thereto, the obtained mixture was homogeneously mixed under ultrasound. The dissolved sample was quickly centrifuged, and the supernatant was placed in a centrifuge tube, the mouth of the tube was packed with a pierced aluminum foil, and then the tube was placed in a fume cupboard for volatilization; the sample of the suspension was placed on a magnetic stirring heater (40°C) for stirring (in dark), and quickly centrifuged after 2 days. The resultant solid was collected and dried at 30°C in a vacuum drying oven overnight to give the crystal form C of the compound represented by formula (I). The XRPD pattern of the crystal form C of the compound represented by formula (I) is shown in Fig. 7, the DSC pattern is shown in Fig. 8, and the TGA pattern is shown in Fig. 9.

[0198] In this Embodiment, the crystal form C was obtained after stirring in a methanol system for 2 days, and thus it can be seen that crystal form C has a substantially high stability in the methanol solution. 35 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29

[0199] Embodiment 7: Preparation of the Crystal Form C of the Compound represented by Formula (I)

[0200] 500 mg of the compound represented by formula (I) was weighed and added into a 10mL glass flask, and 5 mL solution of methanol-water (Vmethanoi-VWater=3:1) was added to form a suspension. A sample of the suspension was placed on a magnetic stirrer at 10-20°C for stirring, and filtered after 12 hours, the residual solid of the sample was subjected to rotary¬ evaporation to dryness, and detected by XRPD for its crystal form status to give a crystal form C of the compound represented by formula (I).

[0201] Embodiment 8: Preparation of the Crystal Form D of the Compound represented by Formula (I)

[0202] 50 mg of the compound represented by formula (I) was weighed and added into a 1.5mL liquid vial, and 200 pL ethanol was added thereto, and the obtained mixture was homogeneously mixed under ultrasound. The dissolved sample was quickly centrifuged, the supernatant was placed into a centrifuge tube, and the mouth of the tube was packed with a pierced aluminum foil, and placed in a fume cupboard for volatilization; the sample of the suspension was placed on a magnetic stirring heater (40°C) for stirring (in dark), and quickly centrifuged after 2 days. The solid obtained as above was collected and dried at 30°C in a vacuum drying oven overnight to give a crystal form D of the compound represented by formula (I). The XRPD pattern of the crystal form D of the compound represented by formula (I) is shown in Fig. 10, the DSC pattern is shown in Fig. 11, and the TGA pattern is shown in Fig. 12.

[0203] In this Embodiment, the crystal form D was obtained after stirring in an ethanol system for 2 days, and thus it can be seen that the crystal form D has a substantially high stability in the ethanol solution.

[0204] Embodiment 9: Preparation of the Crystal Form D of the Compound represented by Formula (I)

[0205] 500 mg of the compound represented by formula (I) was weighed and added into a 10 mL glass vial, and 2 mL ethanol was added thereto, the obtained mixture was homogeneously mixed under ultrasound. The dissolved sample was quickly centrifuged, and the supernatant was placed into a centrifuge tube, the mouth of the tube was packed with a pierced aluminum 36 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29 foil, and placed in a fume cupboard for about 12 hours of volatilization until the volume thereof was reduced to a half; the sample of the suspension was placed on a magnetic stirring heater (40°C) for stirring (in dark), and quickly centrifuged after 2 days. The solid obtained as above was collected and dried at 30°C in a vacuum drying oven overnight, and detected by XRPD for its crystal form status to give a crystal form D of the compound represented by formula (I).

[0206] Embodiment 10: Preparation of the Compound represented by Formula (II)

[0207] 5.8 g of the compound represented by formula (I) was weighed and added into a 250 mL single-neck flask, and 87.5 mL acetone solvent was added and stirred at 40°C for dissolution; then, an appropriate amount of methanesulfonic acid (the molar ratio of the crystal form A of the compound represented by formula (I):the acid was 1:1.05) was added, the acid was diluted with the acetone solvent, and then slowly added into the solution of the active pharmaceutical ingredient, and the obtained mixture was observed for any phenomenon. A sample of the suspension was placed on a magnetic stirrer (40°C) for stirring overnight. After stirring overnight, the methanesulfonate suspension was filtered, and subjected to rotary evaporation to dryness to give the compound represented by formula (II).

[0208] Embodiment 11: Preparation of the Crystal Form E of the Compound represented by Formula (II)

[0209] 35 mg of the compound represented by formula (II) was weighed and added into a 1.5mL liquid vial, and 400pL methanol was added thereto, and the obtained mixture was homogeneously mixed under ultrasound. The dissolved sample was quickly centrifuged, and the supernatant was placed into a centrifuge tube, and the mouth of the tube was packed with a pierced aluminum foil, and placed in a fume cupboard for volatilization. The sample of the suspension was placed on a magnetic stirring heater (40°C) for stirring (in dark) and quickly centrifuged after 2 days. The obtained solid was collected and dried at room temperature in a vacuum drying oven to give a crystal form E of the compound represented by formula (II). The XRPD pattern of the crystal form E of the compound represented by formula (II) is shown in Fig. 13, the DSC pattern is shown in Fig. 14, and the TGA pattern is shown in Fig. 15.

[0210] In this Embodiment, the crystal form E was obtained after stirring in a methanol system for 2 days, and thus it can be seen that the crystal form E has a substantially high stability in the 37 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29 methanol solution.

[0211] Embodiment 12: Preparation of the Crystal Form E of the Compound represented by Formula (II)

[0212] 350 mg of the compound represented by formula (II) was weighed and added into a 10 mL single-neck flask, 4 mL methanol was added thereto, the obtained mixture was homogeneously mixed under ultrasound. The dissolved sample was quickly centrifuged, and the supernatant was placed into a centrifuge tube, and the mouth of the tube was packed with a pierced aluminum foil, and placed in a fume cupboard for about 12 hours of volatilization until the volume thereof was reduced to a half; the sample of the suspension was placed on a magnetic stirring heater at 40°C for stirring in dark and quickly centrifuged after 2 days. The obtained solid was collected and dried at room temperature in a vacuum drying oven, and detected by XRPD for its crystal form status to give a crystal form E of the compound represented by formula (II).

[0213] Embodiment 13: Preparation of the Crystal Form F of the Compound represented by Formula (II)

[0214] 35 mg of the compound represented by formula (II) was weighed and added into a 1,5mL liquid vial, 400pL ethanol-water (1:1) was added thereto, and the obtained mixture was homogeneously mixed under ultrasound. The dissolved sample was quickly centrifuged, and the supernatant was placed into a centrifuge tube, and the mouth of the tube was packed with a pierced aluminum foil, and placed in a fume cupboard for volatilization; the sample of the suspension was placed on a magnetic stirring heater (40°C) for stirring (in dark) and quickly centrifuged after 2 days. The obtained solid was collected and dried at room temperature in a vacuum drying oven to give a crystal form F the compound represented by formula (II). The XRPD pattern of the crystal form F of the compound represented by formula (II) is shown in Fig. 16, the DSC pattern is shown in Fig. 17, and the TGA pattern is shown in Fig. 18.

[0215] In this Embodiment, the crystal form F was obtained by stirring in an ethanol-water system for 2 days, and thus it can be seen that the crystal form F has a substantially high stability in the ethanol-water solution.

[0216] Embodiment 14: Preparation of the Crystal Form F of the Compound represented by 38 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29 Formula (II)

[0217] 350 mg of the compound represented by formula (II) was weighed and added into a 10mL glass flask, 4 mL ethanol-water (1:1) was added thereto, the obtained mixture was homogeneously mixed under ultrasound. The dissolved sample was quickly centrifuged, and the supernatant was placed into a centrifuge tube, and the mouth of the tube was packed with a pierced aluminum foil, and placed in a fume cupboard for about 12 hours of volatilization until the volume thereof was reduced to a half. The sample of the suspension was placed on a magnetic stirring heater at 40°C for stirring in dark and quickly centrifuged after 2 days. The obtained solid was collected and dried at room temperature in a vacuum drying oven, and detected by XRPD for its crystal form status to give a crystal form F of the compound represented by formula (II).

[0218] Embodiment 15: Preparation of the Crystal Form G of the Compound represented by Formula (III)

[0219] 100 mg of the compound represented by formula (I) was weighed and added into a 8 mL glass vial, 1.5 mL acetone was added thereto, the obtained mixture was subjected to ultrasonic treatment for dissolution. Then, an appropriate amount of sulfuric acid was taken (the molar ratio of API: acid was 1:1.05), the acid was diluted with acetone or dissolved by ultrasound, and slowly added into a solution of the active pharmaceutical ingredient in acetone, the mixture was observed for any phenomenon. The solution or suspension sample was placed on a magnetic stirrer (40°C) for stirring. After stirring overnight, the sample suspension was centrifuged, and dried at 30°C in a vacuum drying oven overnight to give a crystal form G of the compound represented by formula (III). The XRPD pattern of the crystal form G of the compound represented by formula (III) is shown in Fig. 19, the DSC pattern is shown in Fig. 20, and the TGA pattern is shown in Fig. 21.

[0220] In this embodiment, the crystal form G was obtained by stirring in an acetone system for 2 days, and thus it can be seen that the crystal form G has a substantially high stability in the acetone solution.

[0221] Experimental Embodiment 1: Solid Stability Test of the Crystal Form A

[0222] A sample of the crystal form A was placed on the bottom of a glass sample bottle, and 39 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 spread to a thin layer. The sample stored under high temperature, high humidity, and acceleration conditions was placed in a bottle of which the mouth was packed with a pierced aluminum foil to ensure the sample to be sufficiently exposed to ambient air; the sample stored under light radiation conditions was placed at room temperature in a standing bottle of which 5 the mouth was open, the sample was exposed to a light resource, and sampled for detection after being radiated by sufficient energy. Samples were taken and analyzed at various time points, and the test results were compared with the initial test results of 0 day, the inspection items included appearance, content and impurities, and the test results are shown in Table 9. Table 9: Solid Stability Test of the Crystal Form A Conditions Time Points Appearance Content (%) Total Impurities (%) - 0 day Off-white solid 99.11 1.12 High temperature (60°C, open) 5 days Off-white solid Not detected Not detected 10 days Off-white solid 99.06 1.18 High humidity (room temperature / relative humidity of 92.5%, open) 5 days Off-white solid Not detected Not detected 10 days Off-white solid 98.85 1.22 Light radiation (total illumination: 1.2xl06 Lux hr / ) 5 days Off-white solid Not detected Not detected 10 days Off-white solid 99.13 1.10 40 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29

[0223] Conclusion: The influence factors and acceleration tests showed that the crystal form A exhibits relatively good thermal stability, photostability and stability under acceleration conditions, but has slightly less stability under high humidity conditions. Acceleration test (40°C / relative humidity of 75%, open) 5 days Off-white solid Not detected Not detected 10 days Off-white solid 98.98 1.18

[0224] Experimental Embodiment 2: Solid Stability Test of the Crystal Form B 5

[0225] A sample of the crystal form B (lOmg) was placed on the bottom of a glass sample bottle, and spread to a thin layer. The sample stored under high temperature, high humidity, and acceleration conditions were placed in a bottle of which the mouth was packed with a pierced aluminum foil to ensure the sample to be sufficiently exposed to ambient air; the sample stored under light radiation conditions was placed at room temperature in a standing bottle of 10 which the mouth was open, the sample was exposed to a light resource, and sampled for detection after being radiated by sufficient energy, the control sample stored in dark (open, the whole sample bottle was sealed with aluminum foil to keep the content in dark) and the sample stored under light radiation conditions were placed together to exclude environmental influence on the samples. Samples were taken and analyzed at various time points, and the test results 15 were compared with the initial test results of 0 day, the inspection items included appearance, crystal form, content and impurities, the test results are shown in Table 10. Table 10: Solid Stability Test of the Crystal Form B Conditions Time Points Appearance Crystal Form (XRPD) Content (%) Total Impurities (%) - 0 day Off-white solid Crystal form B 99.21 0.41 41 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 High temperature (60°C, open) 5 days Off-white solid Crystal form B Not detected Not detected 10 days Off-white solid Crystal form B 100.74 0.42 High humidity (room temperature / relative humidity of 92.5%, open) 5 days Off-white solid Crystal form B Not detected Not detected 10 days Off-white solid Crystal form B 101.03 0.42 Light radiation (total illumination: 1.2xlO6Lux-hr / near ultraviolet: 200 whr / m2, open) Light radiation Off-white solid Crystal form B 92.90 2.21 In dark Off-white solid Crystal form B 100.23 0.42 Acceleration test (40°C / relative humidity of 75%, open) 10 days Off-white solid Crystal form B 101.21 0.43 1 month Off-white solid Crystal form B 99.49 0.43 2 months Off-white solid Crystal form B Not detected Not detected 3 months Off-white solid Crystal form B 96.23 0.31 Acceleration test (60°C / relative humidity of 75%, open) 10 days Off-white solid Crystal form B 100.91 0.42 1 month Off-white solid Crystal form B 98.68 0.42 42 Date Repue / Date Received 2020-04-29CA 03080827 2020-04-29

[0226] Conclusion: the influence factors and acceleration tests all showed that the crystal form B exhibits superior thermal stability and stability under acceleration conditions, and exhibits slight impurity generation under light radiation, and good stability in dark. 2 months Off-white solid Crystal form B Not detected Not detected 3 months Off-white solid Crystal form B 96.71 0.31 Experimental Embodiment 3: Solid Stability Test of the Crystal Form C 5

[0227] A sample of the crystal form C was taken and placed on the bottom of a glass sample bottle, and spread to a thin layer. The sample stored under high temperature, high humidity, and acceleration conditions was placed in a bottle of which the mouth was packed with a pierced aluminum foil to ensure the sample to be sufficiently exposed to ambient air; the sample stored under light radiation conditions was placed at room temperature in a standing bottle of which 10 the mouth was open, the sample was exposed to a light resource, and sampled for detection after being radiated by sufficient energy. Samples were taken and analyzed at various time points, and the test results were compared with the initial test results of 0 day. The inspection items included appearance, crystal form, content and impurities, the test results are shown in Table 11. Table 11: Solid Stability Test of the Crystal Form C Conditions Time Points Appearance Crystal Form (XRPD) Content (%) Total Impurities (%) - 0 day Off-white solid Crystal form C 98.96 1.25 High temperature 5 days Off-white solid Not detected Not detected Not detected 43 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29

[0228] Conclusion: Influence factors and acceleration tests all showed that the crystal form C exhibits good thermal stability and stability under acceleration conditions. (60°C, open) 10 days Off-white solid Crystal form C 98.93 1.27 High humidity (room temperature / relative humidity of 92.5%, open) 5 days Off-white solid Not detected Not detected Not detected 10 days Off-white solid Crystal form C 98.22 2.08 Light radiation (total illumination: 1.2><106 Lux«hr / ) 5 days Off-white solid Not detected Not detected Not detected 10 days Off-white solid Crystal form C 98.35 1.86 Acceleration test (40°C / relative humidity of 75%, open) 5 days Off-white solid Not detected Not detected Not detected 10 days Off-white solid Crystal form C 98.96 1.26

[0229] Experimental Embodiment 4: Solid Stability Test of the Crystal Form D

[0230] A sample of the crystal form D was taken and placed on the bottom of a glass sample 5 bottle, and spread to a thin layer. The sample stored under high temperature, high humidity, and acceleration conditions was placed in a bottle of which the mouth was packed with a pierced aluminum foil to ensure the sample to be sufficiently exposed to ambient air; the sample stored under light radiation conditions was placed at room temperature in a standing bottle of which the mouth was open, the sample was exposed to a light resource, and sampled for detection after 10 being radiated by sufficient energy. Samples were taken and analyzed at various time points, and the test results were compared with the initial test results of 0 day. The inspection items included appearance, content and impurities; the test results are shown in Table 12. Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 Table 12: Solid Stability Test of Crystal Form D

[0231] Conclusion: Influence factors and acceleration tests all showed that the crystal form D exhibits good thermal stability, photostability, and stability under high humidity and acceleration conditions. Conditions Time Points Appearance Content (%) Total Impurities (%) - 0 day Off-white solid 99.33 0.90 High temperature (60°C, open) 5 days Off-white solid Not detected Not detected 10 days Off-white solid 99.32 0.94 High humidity (room temperature / relative humidity of 92.5%, open) 5 days Off-white solid Not detected Not detected 10 days Off-white solid 99.36 0.89 Light radiation (total illumination: 1.2><106 Lux«hr / ) 5 days Off-white solid Not detected Not detected 10 days Off-white solid 99.41 0.86 Acceleration test (40°C / relative humidity of 75%, open) 5 days Off-white solid Not detected Not detected 10 days Off-white solid 99.38 0.96 5

[0232] Experimental Embodiment 5: Solid Stability Test of the Crystal Form E 45 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29

[0233] A sample of the crystal form E (lOmg) was taken and placed on the bottom of a glass sample bottle, and spread to a thin layer. The sample stored under high temperature, high humidity, and acceleration conditions was placed in a bottle of which the mouth was packed with a pierced aluminum foil to ensure the sample to be sufficiently exposed to ambient air; the 5 sample stored under light radiation conditions was placed at room temperature in a standing bottle of which the mouth was open, the sample was exposed to a light resource, and sampled for detection after being radiated by sufficient energy, the control sample stored in dark (open, the whole sample bottle was sealed with aluminum foil to keep the content in dark) and the sample stored under light radiation conditions were placed together to exclude environmental 10 influence on the samples. Samples were taken and analyzed at various time points, and the test results were compared with the initial test results of 0 day, the inspection items included appearance, crystal form, content and impurities, the test results are shown in Table 13. Table 13: Solid Stability Test of Crystal Form E Conditions Time Points Appearance Crystal Form (XRPD) Content (%) Total Impurities (%) - 0 day White powder Crystal form E 101.51 0.44 High temperature (60°C, open) 5 days White powder Crystal form E Not detected Not detected 10 days White powder Crystal form E 100.37 0.50 High humidity (room temperature / relative humidity of 92.5%, open) 5 days White powder Crystal form E Not detected Not detected 10 days White powder Crystal form E 101.24 0.34 Light radiation Light White Crystal form 98.70 0.49 46 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29

[0234] Conclusion: Influence factors and acceleration tests all showed that the crystal form E exhibits superior thermal stability and stability under acceleration conditions, and exhibits slight impurity generation under light radiation conditions, and good stability in dark. (total illumination: 1.2xl06 Lux-hr / near ultraviolet: 200 whr / m2, open) radiation powder E In dark White powder Crystal form E 100.87 0.37 Acceleration test (40°C / relative humidity of 75%, open) 10 days White powder Crystal form E 99.58 0.35 1 month White powder Crystal form E 102.95 0.33 Acceleration test (60°C / relative humidity of 75%, open) 10 days White powder Crystal form E 100.38 0.37 1 month White powder Crystal form E 102.48 0.40

[0235] Experimental Embodiment 6: Solid Stability Test of Crystal Form F 5

[0236] A sample of the crystal form F (lOmg) was placed on the bottom of a glass sample bottle, and spread to a thin layer. The sample stored under high temperature, high humidity, and acceleration conditions was placed in a bottle of which the mouth was packed with a pierced aluminum foil to ensure the sample to be sufficiently exposed to ambient air; the sample stored under light radiation conditions was placed at room temperature in a standing bottle of which 10 the mouth was open, the sample was exposed to a light resource, and sampled for detection after being radiated by sufficient energy. Samples were taken and analyzed at various time points, and the test results were compared with the initial test results of 0 day, the inspection items included appearance, crystal form, content and impurities, the test results are shown in Table 14. Table 14 Solid Stability Test of Crystal Form F 47 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29

[0237] Conclusion: Influence factors and acceleration tests all show that the crystal form F exhibits good stabilities under high humidity and light radiation conditions and under acceleration conditions, and exhibits slight impurity generation at high temperature. Conditions Time Points Appearance Crystal form (XRPD) Content (%) Total Impurities (%) - 0 day White powder Crystal form F 99.26 0.72 High temperature 5 days White powder Not detected Not detected Not detected (60°C, open) 10 days White powder Crystal form F 99.22 0.79 High humidity (room temperature / relative humidity of 92.5%, open) 5 days White powder Not detected Not detected Not detected 10 days White powder Crystal form F 99.24 0.73 Light radiation 5 days White powder Not detected Not detected Not detected (total illumination: 1.2xl06 Lux-hr / ) 10 days White powder Crystal form F 99.30 0.73 Acceleration test (40°C / relative humidity of 75%, open) 5 days White powder Not detected Not detected Not detected 10 days White powder Crystal form F 99.22 0.71

[0238] Experimental Embodiment 7: Solubility of the Crystal Form B, the Crystal Form E and 48 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29 the Crystal Form G in Various Biological Media

[0239] Step 1: Preparation of Control Solutions (0.2 mg / mL, calculated by free base)

[0240] 2 mg the crystal form B of the compound represented by formula (I) (or 2.4 mg the crystal form E of the compound represented by formula (II)) as a control was precisely weighed and placed into a 40 mL glass vial, and a diluent (10 mL) was precisely added. The reaction solution was subjected to ultrasonic treatment for 20 min to sufficiently dissolve, then cooled to room temperature and shaked well. Two control solutions (STD#1, STD#2) were formulated in accordance with this method.

[0241] Step 2: Preparation of Linear Solutions

[0242] The control solution STD#1 of the crystal form B of the compound represented by formula (I) was lx, lOx, lOOx, lOOOx and 2000x (free base LOQ) diluted, and designated as the linear solutions LI, L2, L3, L4 and L5; the control solution STD#1 of the crystal form E of the compound represented by formula (II) was lx, lOx, lOOx and lOOOx (methanesulfonate LOQ) diluted, and designated as the linear solutions LI, L2, L3, L4.

[0243] Step 3: Solubility Test of the crystal form B of the compound represented by formula (I), the crystal form G of the compound represented by formula (III) and the crystal form E of the compound represented by formula (II) in biological media and water 4 samples (about 4 mg) of each of the crystal form B of the compound represented by formula (I), the crystal form E of the compound represented by formula (II), and the crystal form G of the compound represented by formula (III) were added into 12 glass vials (4 mL), respectively, and then 2 mL different biological media (FaSSIF, FeSSIF, SGF) and water were added into each compound respectively, then mixed homogeneously to form a suspension. The suspension was detected for its initial pH value. A magnet was added into the suspension, and placed on a magnetic stirring heater for stirring (at a temperature of 37°C, in dark). After stirring for 24h, a sample was taken. The taken sample was quickly centrifuged, and the residual solid was detected by XRPD. The supernatant was detected for its pH value and diluted with a diluent into appropriate multiple, then measured with HPLC for its concentration. 49 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 Table 15: Solubility Test Results in Various Biological Media (37°C)

[0244] NOTE: The results of the solubility of the compounds in salt form have been converted to the salt concentrations (the concentration was calculated based on the linear solution of the free base). Compounds Biological Media pH Status (24h) Solubility (mg / mL) 0 hour 24 hours 24 hours Crystal form B of the compound represented by formula (I) FaSSIF 7.04 7.10 Suspension 0.041 FeSSIF 4.98 5.18 Suspension 0.284 SGF 2.21 2.48 Suspension 0.014 Water 8.34 7.30 Suspension 0.007 Crystal form E of the compound represented by formula (II) Fassif 6.97 6.81 Suspension 0.036 Fessif 4.92 5.11 Suspension 0.358 SGF 2.17 2.31 Suspension 0.041 Water 3.50 2.74 Suspension 0.100 Crystal form G of the compound represented by formula (III) Fassif 6.54 6.38 Suspension 0.079 Fessif 4.87 4.99 Suspension 0.668 SGF 2.03 2.14 Suspension 0.045 Water 2.34 2.47 Suspension 0.028 Standard curve y=34042x, r=l LOQ LOQ=0.0001 mg / mL, S / N=22.1 5

[0245] FaSSIF: 1. 0.042 g sodium hydroxide, 0.3438 g sodium dihydrogen phosphate and 50 Date ReQue / Date Received 2020-04-295 10 15 20 25 CA 03080827 2020-04-29 0.6186 g sodium chloride were weighed, added into 90 mL purified water, and homogeneously mixed, then, the mixture was adjusted with 1 N hydrochloric acid or 1 N sodium hydroxide to pH=6.5, and diluted into a constant volume of 100 mL with purified water; 2. 50 mL of the buffer described above was taken, and 0.224 g commercially available powder (Biorelevant.com) of FaSSIF / FeSSIF / FaSSGF was added thereto, the mixture was stirred to dissolve, and diluted with purified water to a constant volume of 100 mL. The formulated buffer stood at room temperature for 2 hours, and was ready for use if the buffer was observed to be slightly milk white.

[0246] FeSSIF: 1. 0.404 g sodium hydroxide, 0.865 g glacial acetic acid, and 1.1874 g sodium chloride were weighed, added into 90 mL purified water, and homogeneously mixed, then, the mixture was adjusted with 1 N hydrochloric acid or 1 N sodium hydroxide to pH=5.0, and diluted with purified water to a constant volume of 100mL, 2. 50 mL of the buffer described above was taken, and 1.12 g commercially available powder (Biorelevant.com) of FaSSIF / FeSSIF / FaSSGF was added thereto, the mixture was stirred to dissolve, and diluted with purified water to a constant volume of 100 mL. The formulated buffer stood at room temperature for 2 hours, and was ready for use if the buffer was observed to be clear liquid.

[0247] FaSSGF (SGF): 1. 0.2 g sodium chloride was weighed, added into 90 mL purified water, and mixed homogeneously, the mixture was adjusted with 1 N hydrochloric acid to pH=l.8, and diluted with purified water to a constant volume of 100 mL, and stood at room temperature.

[0248] LOQ: limit of quantitation.

[0249] Conclusion: The crystal form B of the compound represented by formula (I), the crystal form G of the compound represented by formula (III), and the crystal form E of the compound represented by formula (II) all exhibit good solubility in three types of biological media.

[0250] Experimental Embodiment 8: In Vitro Enzyme Activity Test

[0251] Experimental Objective

[0252] The enzyme activity was detected by Z'-LYTE® Assay with IC50 value of the compound used as an index for evaluating the inhibitory effect of the compound on FGFR4 kinases. The activity test was completed in Life technology. 51 Date ReQue / Date Received 2020-04-295 10 15 20 CA 03080827 2020-04-29

[0253] Experimental Method

[0254] The test compound was subjected to 3x gradient dilution, and the final concentrations included 10 concentrations from 10 pM to 0.5 nM, with two duplicates per concentration; the content of DMSO used in the detection reaction was 1%.

[0255] FGFR4 Enzymatic Reaction

[0256] 1.94-84 ng FGFR1 protein kinase, 2pMTyr4 substrate, 150pMATP, 50mMHEPES (pH 7.5), 0.01% BRIJ-35, 10 mM MgCh, 2 mM MnCh, 1 mM EGTA, 1 mM DTT. The detection plate was Bar-coded Corning, low volume NBS, black 384-well plate, the reaction was implemented at room temperature for 60 min, and the reaction system was lOpL.

[0257] FGFR1 Enzymatic Reaction:

[0258] 1 nM FGFR1 protein kinase, 2pM Tyr4 peptide, 25 uM ATP, 50 mM HEPES (pH 7.5), 10 mM MgCh, 1 mM EGTA, 0.01% BRIJ-35, 2 mM MnCh, and 1 mM DTT. The detection plate was Black Proxiplate 384-Plus plate (PerkinElmer), the reaction was implemented at room temperature for 60 min, and the reaction system was lOpL.

[0259] Reaction Detection:

[0260] 5pL Development reagent B (1:64) was added into the kinase reaction solution to stop the reaction, and the reaction solution was incubated at 23°C for 60 min, the plate was read with Envision instrument.

[0261] Data Analysis

[0262] The data were converted to the phosphorylation rate and the inhibitory rate, and was subjected to curve fitting with Model 205 in XLFIT (iDBS) to give the IC50 data of the compound. If the bottom of the curve was not in the range of -20% to 20%, it was set as 0%; and if the top of the curve was not in the range of 70% to 130%, it was set as 100%. 52 Date ReQue / Date Received 2020-04-29CA 03080827 2020-04-29 Table 16: ICso Test Results of Z' - LYTE™ Detection (nM) Samples FGFR4 ICso (nM) FGFR1 IC50 (nM) Compound represented by formula (I) 17 1,460.0 Conclusion: The core structure including acrylamide and fluoroolefin bond of the present disclosure can result in a series of highly FGFR4-selective compounds, which has excellent inhibitory activity on FGFR4 kinase, and have no activity on the subtype of FGFR1 kinase, the 5 selectivity is at least 10 times or even more than 100 times. 53 Date ReQue / Date Received 2020-04-29

Claims

54 What is claimed is:

1. A crystal form A of the compound represented by formula (I), wherein the X-ray powder diffraction pattern thereof has characteristic diffraction peaks at the following 2θ angles: 5.58±0.2°, 21.31±0.2° and 22.97±0.2°; or, the X-ray powder diffraction pattern of the crystal form A has characteristic diffraction peaks at the following 2θ angles: 5.58±0.2°, 12.43±0.2°, 14.56±0.2°, 18.47±0.2°, 20.23±0.2°, 21.31±0.2°, 22.97±0.2° and 25.44±0.2°; or, the X-ray powder diffraction pattern of the crystal form A has characteristic diffraction peaks at the following 2θ angles: 5.58±0.2°, 12.43±0.2°, 12.77±0.2°, 13.00±0.2°, 14.56±0.2°, 18.47±0.2°, 20.23±0.2°, 21.00±0.2°, 21.31±0.2°, 22.44±0.2°, 22.97±0.2°, 24.86±0.2°, 25.44±0.2° and 27.14±0.2°, .

2. The crystal form A as defined in claim 1, wherein the analytical data of the XRPD pattern thereof are as shown in the table below: Number 2θ Angle (°) Relative Intensity (%) Number 2θ Angle (°) Relative Intensity (%) 1 5.583 7.9 16 22.44 13 2 10.946 7.6 17 22.973 100 3 11.512 5.1 18 24.864 16.5 4 12.427 21.3 19 25.438 59.4 5 12.765 24.5 20 27.136 12.5 CA 3080827 Date reçue / Received date 2024-06-28 (I)55 6 13 46 21 27.607 8.4 7 14.562 10.2 22 27.871 6.1 8 15.691 5.1 23 28.818 7.3 9 16.66 7.5 24 29.447 5.9 10 17.96 6.7 25 31.343 3.8 11 18.47 24.3 26 31.788 3.9 12 19.598 6 27 32.247 4.3 13 20.229 29 28 32.584 11.3 14 20.999 13.2 15 21.311 47.9 or, the XRPD pattern of the crystal form A is as shown in Fig.

1.

3. The crystal form A as defined in claim 1 or 2, wherein the differential scanning calorimetric curve thereof has an endothermic peak with an onset of 174.46ºC±3ºC; or, the DSC pattern of the crystal form A is as shown in Fig.

2.

4. The crystal form A as defined in any one of claims 1 to 3, wherein the thermogravimetric analysis curve thereof has a weight loss of 0.02335% occurred at 120.00ºC±3ºC, and an additional weight loss of 0.2869% occurred at 200.85ºC±3ºC; or, the TGA pattern of the crystal form A is as shown in Fig.

3.

5. A crystal form B of the compound represented by formula (I), wherein the X-ray powder diffraction pattern thereof has characteristic diffraction peaks at the following 2θ angles: 9.27±0.2°, 12.59±0.2° and 15.98±0.2°; or, the X-ray powder diffraction pattern of the crystal form B has characteristic diffraction peaks at the following 2θ angles: 9.27±0.2°, 12.59±0.2°, 15.21±0.2°, 15.98±0.2°, 18.47±0.2°, 20.90±0.2°, 21.78±0.2° and 27.69±0.2°; or, the X-ray powder diffraction pattern of the crystal form B has characteristic diffraction peaks at the following 2θ angles: 9.27±0.2°, 12.12±0.2°, 12.59±0.2°, 15.21±0.2°, 15.98±0.2°, 18.47±0.2°, CA 3080827 Date reçue / Received date 2024-06-2856 20.90±0.2°, 21.79±0.2°, 22.60±0.2°, 22.85±0.2°, 24.16±0.2°, 24.39±0.2° and 27.69±0.2°, .

6. The crystal form B as defined in claim 5, wherein the analytical data of the XRPD pattern thereof are as shown in the table below: Number 2θ Angle (°) Relative Intensity (%) Number 2θ Angle (°) Relative Intensity (%) 1 6.149 7.6 18 22.853 11.1 2 7.044 2.2 19 23.404 7 3 9.272 66.2 20 24.156 26.6 4 12.115 13 21 24.394 28.7 5 12.587 100 22 24.685 8.4 6 13.97 7 23 25.182 7.4 7 15.212 9.3 24 26.365 8.6 8 15.982 21.4 25 27.693 24.1 9 18.468 15.3 26 28.777 6.8 10 19.383 5.4 27 29.856 3.2 11 19.713 9.9 28 31.482 5.4 12 20.01 5.7 29 32.096 1.4 CA 3080827 Date reçue / Received date 2024-06-2857 13 20.9 56.3 30 33.435 7.4 14 21.508 9.3 31 35.627 3.4 15 21.785 33.2 32 36.515 4.3 16 22.302 5.1 33 37.027 5.5 17 22.596 12.7 34 38.018 4.3 or, the XRPD pattern of the crystal form B is as shown in Fig.

4.

7. The crystal form B as defined in claim 5 or 6, wherein the differential scanning calorimetric curve thereof has an endothermic peak with an onset of 178.04ºC±3ºC; or, the DSC pattern of the crystal form B is as shown in Fig.

5.

8. The crystal form B as defined in any one of claims 5 to 7, wherein the thermogravimetric analysis curve thereof has a weight loss of 0.8093% occurred at 120.00ºC±3ºC, and an additional weight loss of 1.128% occurred at 200.04ºC±3ºC; or, the TGA pattern of the crystal form B is as shown in Fig.

6.

9. A crystal form C of the compound represented by formula (I), wherein the X-ray powder diffraction pattern thereof has characteristic diffraction peaks at the following 2θ angles: 4.35±0.2°, 10.50±0.2° and 12.25±0.2°; or, the X-ray powder diffraction pattern of the crystal form C has characteristic diffraction peaks at the following 2θ angles: 4.35±0.2°, 8.38±0.2°, 10.50±0.2°, 12.25±0.2°, 12.82±0.2°, 13.45±0.2°, 16.36±0.2° and 18.65±0.2°; or, the X-ray powder diffraction pattern of the crystal form C has characteristic diffraction peaks at the following 2θ angles: 4.35±0.2°, 8.38±0.2°, 10.50±0.2°, 11.84±0.2°, 12.25±0.2°, 12.82±0.2°, 13.45±0.2°, 16.36±0.2°, 16.64±0.2°, 17.05±0.2°, 17.92±0.2°, 18.65±0.2°, 19.79±0.2°, 20.21±0.2°, 20.52±0.2°, 21.19±0.2°, 22.18±0.2°, 23.23±0.2°, 23.84±0.2°, 24.65±0.2°, 25.67±0.2°, 26.17±0.2° and 28.91±0.2°, CA 3080827 Date reçue / Received date 2024-06-2858 .

10. The crystal form C as defined in claim 9, wherein the analytical data of the XRPD pattern thereof are as shown in the table below: Number 2θ Angle (°) Relative Intensity (%) Number 2θ Angle (°) Relative Intensity (%) 1 4.352 13.6 21 21.194 17 2 8.378 15.3 22 21.628 6 3 10.496 25.7 23 22.181 14.2 4 11.838 72.1 24 22.578 3.2 5 12.253 100 25 23.231 10 6 12.824 29.9 26 23.838 22.9 7 13.453 18.3 27 24.65 21.2 8 14.131 7.7 28 24.984 10.5 9 16.359 15.1 29 25.673 16.2 10 16.637 11 30 26.169 19.1 11 17.047 19.9 31 26.465 9.5 12 17.685 8.5 32 27.158 5.5 13 17.92 13 33 27.602 4.6 CA 3080827 Date reçue / Received date 2024-06-2859 14 18.647 28.2 34 28.025 9.4 15 19.006 4.4 35 28.679 11.5 16 19.419 6.8 36 28.914 13.3 17 19.789 12 37 30.629 5.3 18 20.207 26.6 38 31.052 8.5 19 20.522 33.9 39 32.705 5.7 20 20.979 9.2 40 35.821 10.3 or, the XRPD pattern of the crystal form C is as shown in Fig.

7.

11. The crystal form C as defined in claim 9 or 10, wherein the differential scanning calorimetric curve thereof has an endothermic peak with an onset of 179.19ºC±3ºC; or, the DSC pattern of the crystal form C is as shown in Fig.

8.

12. The crystal form C as defined in any one of claims 9 to 11, wherein the thermogravimetric analysis curve thereof has a weight loss of 0.4101% occurred at 120.00ºC±3ºC, and an additional weight loss of 0.2938% occurred at 200.31ºC±3ºC; or, the TGA pattern of the crystal form C is as shown in Fig.

9.

13. A crystal form D of the compound represented by formula (I), wherein the X-ray powder diffraction pattern thereof has characteristic diffraction peaks at the following 2θ angles: 5.68±0.2°, 14.68±0.2° and 23.05±0.2°; or, the X-ray powder diffraction pattern of the crystal form D has characteristic diffraction peaks at the following 2θ angles: 5.68±0.2°, 12.53±0.2°, 14.68±0.2°, 18.55±0.2°, 20.33±0.2°, 21.41±0.2°, 23.05±0.2° and 25.52±0.2°; or, the X-ray powder diffraction pattern of the crystal form D has characteristic diffraction peaks at the following 2θ angles: 5.68±0.2°, 12.53±0.2°, 13.06±0.2°, 14.68±0.2°, 16.81±0.2°, 18.55±0.2°, 20.33±0.2°, 20.98±0.2°, 21.41±0.2°, 22.58±0.2°, 23.05±0.2°, 24.96±0.2°, 25.52±0.2° and 27.25±0.2°, CA 3080827 Date reçue / Received date 2024-06-2860 .

14. The crystal form D as defined in claim 13, wherein the analytical data of the XRPD pattern of the crystal form D are as shown in the table below: Number 2θ Angle (°) Relative Intensity (%) Number 2θ Angle (°) Relative Intensity (%) 1 5.679 11.7 19 24.964 22.4 2 11.008 9.5 20 25.517 67.4 3 11.559 4.8 21 26.097 3.6 4 12.527 31.8 22 26.41 4.6 5 12.864 32.4 23 27.254 19.1 6 13.061 53.2 24 27.65 8.9 7 14.679 14.5 25 27.981 7.5 8 15.786 6 26 28.895 9.7 9 16.809 10.3 27 29.544 7 10 18.076 9.2 28 31.775 5.6 11 18.549 32.7 29 32.643 16 12 19.657 6.5 30 33.692 5.7 13 20.325 37 31 34.383 4.3 CA 3080827 Date reçue / Received date 2024-06-2861 14 20.979 18.3 32 34.737 5.5 15 21.409 55.2 33 36.87 5.3 16 22.281 5.4 34 37.936 5.6 17 22.575 19 35 38.601 4.6 18 23.049 100 or, the XRPD pattern of the crystal form D is as shown in Fig.

10.

15. The crystal form D as defined in claim 13 or 14, wherein the differential scanning calorimetric curve thereof has an endothermic peak with an onset of 179.17ºC±3ºC; or, the DSC pattern of the crystal form D is as shown in Fig.

11.

16. The crystal form D as defined in any one of claims 13 to 15, wherein the thermogravimetric analysis curve thereof has a weight loss of 0.6366% occurred at 196.80ºC±3ºC; or, the TGA pattern of the crystal form D is as shown in Fig.

12.

17. A compound represented by formula (II), .

18. A crystal form E of the compound represented by formula (II), wherein the X-ray powder diffraction pattern thereof has characteristic diffraction peaks at the following 2θ angles: 5.95±0.2°, 11.77±0.2° and 22.42±0.2°; or, the X-ray powder diffraction pattern of the crystal form E has characteristic diffraction peaks at the following 2θ angles: 5.95±0.2°, 11.77±0.2°, 12.53±0.2°, 18.53±0.2°, 19.28±0.2°, 21.12±0.2°, 22.42±0.2° and 25.76±0.2°; or, the X-ray powder diffraction pattern of the crystal form E has characteristic diffraction peaks at the following 2θ angles: 5.95±0.2°, 11.77±0.2°, 11.98±0.2°, 12.53±0.2°, 18.53±0.2°, 19.28±0.2°, CA 3080827 Date reçue / Received date 2024-06-28 (II)62 20.78±0.2°, 21.12±0.2°, 21.50±0.2°, 21.99±0.2°, 22.42±0.2°, 23.01±0.2°, 23.94±0.2°, 24.35±0.2°, 25.06±0.2°, 25.76±0.2° and 27.12±0.2°, .

19. The crystal form E as defined in claim 18, wherein the analytical data of the XRPD pattern thereof are as shown in the table below: Number 2θ Angle (°) Relative Intensity (%) Number 2θ Angle (°) Relative Intensity (%) 1 5.95 48.3 19 25.063 15.2 2 10.752 3.8 20 25.303 6.9 3 11.772 42.8 21 25.756 29.2 4 11.978 19.5 22 26.073 7.1 5 12.529 36.9 23 26.368 9 6 17.599 4.1 24 26.681 11 7 18.528 27.8 25 27.116 14.4 8 19.281 27.1 26 28.653 8.7 9 20.111 6.6 27 29.423 2.4 10 20.445 4.2 28 30.023 11.4 11 20.781 24 29 30.828 10.6 CA 3080827 Date reçue / Received date 2024-06-2863 12 21.115 59.7 30 31.341 17.4 13 21.495 20.7 31 31.933 9 14 21.985 15.5 32 32.464 6.4 15 22.418 100 33 32.841 4.7 16 23.01 18.4 34 33.315 4.9 17 23.942 18.6 35 34.974 27.3 18 24.353 33 36 37.639 7.6 or, the XRPD pattern of the crystal form E is as shown in Fig.

13.

20. The crystal form E as defined in claim 18 or 19, wherein the differential scanning calorimetric curve thereof has an endothermic peak with an onset of 193.78ºC±3ºC and an exothermic peak at 198.70ºC±3ºC; or, the DSC pattern of the crystal form E is as shown in Fig.

14.

21. The crystal form E as defined in any one of claims 18 to 20, wherein the thermogravimetric analysis curve thereof has a weight loss of 1.086% occurred at 170.64ºC±3ºC, and an additional weight loss of 1.652% occurred at 210.29ºC ±3ºC; or, the TGA pattern of the crystal form E is as shown in Fig.

15.

22. A crystal form F of the compound represented by formula (II), wherein the X-ray powder diffraction pattern thereof has characteristic diffraction peaks at the following 2θ angles: 6.04±0.2°, 9.21±0.2° and 12.51±0.2°; or, the X-ray powder diffraction pattern of the crystal form F has characteristic diffraction peaks at the following 2θ angles: 6.04±0.2°, 9.21±0.2°, 12.02±0.2°, 12.51±0.2°, 15.88±0.2°, 18.35±0.2°, 20.84±0.2° and 21.67±0.2°; or, the X-ray powder diffraction pattern of the crystal form F has characteristic diffraction peaks at the following 2θ angles: 6.04±0.2°, 9.21±0.2°, 12.02±0.2°, 12.51±0.2°, 15.89±0.2°, 18.35±0.2°, 19.71±0.2°, 20.84±0.2°, 21.67±0.2°, 22.59±0.2°, 24.14±0.2° and 27.64±0.2°, CA 3080827 Date reçue / Received date 2024-06-2864 .

23. The crystal form F as defined in claim 22, wherein the analytical data of the XRPD pattern thereof are as shown in the table below: Number 2θ Angle (°) Relative Intensity (%) Number 2θ Angle (°) Relative Intensity (%) 1 6.036 19.8 17 24.136 28.5 2 9.209 100 18 24.647 9.3 3 12.017 17 19 25.048 4.5 4 12.509 98.6 20 26.288 7.3 5 13.889 7.9 21 27.136 4 6 15.114 9.1 22 27.649 18.3 7 15.885 22.1 23 28.481 4.1 8 18.352 15.2 24 28.831 6.2 9 19.286 4 25 29.781 3.2 10 19.71 12.6 26 31.479 4.9 11 20.027 7.2 27 33.354 5.9 12 20.839 51.1 28 33.588 4.8 13 21.669 32.7 29 36.511 4.7 CA 3080827 Date reçue / Received date 2024-06-28 (II)65 14 22.324 5.9 30 36.944 4.2 15 22.594 14.7 31 37.953 2.8 16 23.348 7.6 or, the XRPD pattern of the crystal form F is as shown in Fig.

16.

24. The crystal form F as defined in claim 22 or 23, wherein the differential scanning calorimetric curve thereof has an endothermic peak with an onset of 155.72ºC±3ºC; or, the DSC pattern of the crystal form F is as shown in Fig.

17.

25. The crystal form F as defined in any one of claims 22 to 24, wherein the thermogravimetric analysis curve thereof has a weight loss of 0.6525% occurred at 120ºC±3ºC, and an additional weight loss of 1.138% occurred at 205.16ºC±3ºC; or, the TGA pattern of the crystal form F is as shown in Fig.

18.

26. A compound represented by formula (III), .

27. A crystal form G of the compound represented by formula (III), wherein the X-ray powder diffraction pattern thereof has characteristic diffraction peaks at the following 2θ angles: 5.86±0.2°, 11.62±0.2° and 22.81±0.2°; or, the X-ray powder diffraction pattern of the crystal form G has characteristic diffraction peaks at the following 2θ angles: 5.86±0.2°, 11.62±0.2°, 12.31±0.2°, 19.22±0.2°, 20.03±0.2°, 22.81±0.2°, 23.68±0.2° and 24.75±0.2°; or, the X-ray powder diffraction pattern of the crystal form G has characteristic diffraction peaks at the following 2θ angles: 5.86±0.2°, 11.62±0.2°, 12.31±0.2°, 19.22±0.2°, 20.03±0.2°, 20.84±0.2°, 21.18±0.2°, 21.63±0.2°, 22.81±0.2°, 23.68±0.2°, 24.75±0.2°, 26.23±0.2° and 26.82±0.2°, CA 3080827 Date reçue / Received date 2024-06-28 (Ill)66 .

28. The crystal form G as defined in claim 27, wherein the analytical data of the XRPD pattern thereof are as shown in the table below: Number 2θ Angle (°) Relative Intensity (%) Number 2θ Angle (°) Relative Intensity (%) 1 5.857 30.6 15 26.229 26.9 2 10.558 6.1 16 26.821 17.5 3 11.624 37.4 17 27.333 5.5 4 12.31 22.8 18 28.968 8.5 5 19.22 33 19 29.168 4.5 6 20.028 26.3 20 30.298 10.6 7 20.839 43.6 21 30.612 9.1 8 21.175 22.3 22 31.599 17.2 9 21.63 14.4 23 31.868 6.9 10 22.186 4.7 24 32.707 3.6 11 22.812 100 25 35.15 19.5 12 23.682 30.6 26 37.897 5.3 CA 3080827 Date reçue / Received date 2024-06-28 (Ill)67 13 24.746 53.3 27 38.823 7.9 14 25.175 6.6 or, the XRPD pattern of the crystal form G is as shown in Fig.

19.

29. The crystal form G as defined in claim 27 or 28, wherein the differential scanning calorimetric curve thereof has an endothermic peak with an onset of 164.93ºC±3ºC; or, the DSC curve of the crystal form G is as shown in Fig.

20.

30. The crystal form G as defined in any one of claims 27 to 29, wherein the thermogravimetric analysis curve thereof has a weight loss of 0.2051% occurred at 120ºC±3ºC, and an additional weight loss of 2.867% occurred at 218.92ºC±3ºC; or, the TGA pattern of the crystal form G is as shown in Fig.

21.

31. A method for preparing a crystal form B of the compound represented by formula (I) as defined in any one of claims 5-8, comprising preparing the crystal form B by adding the compound represented by formula (I) into a solvent, heating and stirring, or by carrying out recrystallization, wherein the solvent is: methanol, ethanol, acetone, tetrahydrofuran, isopropanol or ethanol-water, the stirring temperature is 10ºC to 45ºC, the time for slurrying with stirring is 10 hours to 60 hours, and the weight-volume ratio of the compound to the solvent is 1:8-15 g / mL .

32. A use of the compound as defined in claim 17 or 26, or the crystal form as defined in any one of claims 1 to 16, 18 to 25, and 27 to 30 in the manufacture of a medicament for treating a FGFR4 related disease. CA 3080827 Date reçue / Received date 2024-06-28 (I)68 33. A use of the compound as defined in claim 17 or 26, or the crystal form as defined in any one of claims 1 to 16, 18 to 25, and 27 to 30 for treating a FGFR4 related disease.

34. The compound as defined in claim 17 or 26, or the crystal form as defined in any one of claims 1 to 16, 18 to 25, and 27 to 30 for use in treating a FGFR4 related disease. CA 3080827 Date reçue / Received date 2024-06-28