Cyclopropanecarboxamide derivative F crystal form and preparation method thereof
A technology of cyclopropane carboxamide and derivatives, which is applied in organic chemical methods, drug combinations, pharmaceutical formulations, etc., can solve problems such as unfavorable hygroscopicity and instability of cyclopropane carboxamide derivatives, and achieve excellent high temperature stability, good bioavailability effect
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Embodiment 1
[0035] Embodiment 1 Preparation of cyclopropanecarboxamide derivative F crystal form
[0036] Weigh 500 mg of the cyclopropanecarboxamide derivative raw material into a container, add it to 100 mL of water (analytical grade), suspend at 35°C for 48 hours, filter, and vacuum-dry to obtain an off-white powder. Its yield of weighing calculation is 53%.
Embodiment 2
[0037] Embodiment 2 Preparation of cyclopropanecarboxamide derivative F crystal form
[0038] Weigh 500mg of cyclopropanecarboxamide derivative raw material in a container, add 30mL N,N-dimethylformamide (analytical grade) to dissolve it completely, add the resulting solution to 50mL water (analytical grade), there is a white solid Precipitate, stand at room temperature for 12 hours, filter, vacuum dry to obtain off-white powder. Its yield of weighing calculation is 56%.
Embodiment 3
[0039] Embodiment 3. characterize cyclopropanecarboxamide derivative F crystal form by XRPD pattern
[0040]The measurement of the X-ray powder diffraction (XRPD) pattern is carried out using the RigakuUltimaIV model combined multifunctional X-ray diffractometer, and the specific collection information is as follows: Cu anode (40kV, 40mA), scanning speed 20° / min, scanning range (2θ range) 3~45°, scan step size 0.02, slit width 0.01. Samples were processed using glass slides pressed directly onto the test plate. Subsequent XRPD patterns all adopt similar measurement methods.
[0041] Determination of the XRPD spectrum of the cyclopropanecarboxamide derivative F crystal form prepared according to the method described in Example 1, at 2θ=7.621, 8.879, 11.061, 11.44, 14.061, 15.316, 16.08, 16.539, 17.281, 18.142, 19.859, 20.938, There are diffraction peaks at 22.299, 23.04, 23.96, 24.62, 25.121, 26.619, 28.2, and 28.86, such as figure 1 shown. The error range of 2θ value is ±0...
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