Nitrogen-containing aromatic ring derivatives containing galactose and uses thereof
A technology for medicines and compounds, used in diseases, the preparation of such compounds and pharmaceutical compositions, nitrogen-containing aromatic ring derivatives and pharmaceutical compositions, nitrogen-containing aromatic ring derivatives and pharmaceutical compositions thereof, the field of prevention or treatment of tumors
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Embodiment 1
[0160] Example 1 4-(3-chloro-4-(3-(4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxyl-6-(hydroxymethyl)tetrahydro Synthesis of -2H-pyran-2-yl)oxy)phenyl)urea)phenoxy)-7-methoxyquinoline-6-carboxamide
[0161]
[0162] Step 1) (2R,3S,4S,5R,6R)-2-(Acetoxymethyl)-6-(2,2,2-Trichloro-1-iminoethoxy) tetra Synthesis of Hydrogen-2H-pyran-3,4,5-triyltriacetate
[0163]
[0164] (2R,3S,4S,5R)-2-(Acetoxymethyl)-6-hydroxytetrahydro-2H-pyran-3,4,5-triyltriacetate (3.6g, 10.3mmol) , trichloroacetonitrile (10.4mL, 104mmol), 4A molecular sieves (3g) and dichloromethane (30mL) were added to a 100mL single-necked round bottom flask, stirred in an ice bath under nitrogen protection for 0.5 hours, and then DBU (0.32mL, 2.1mmol ), stirred and reacted in an ice bath for 0.5 hours; stopped the reaction, filtered, collected the filtrate and spin-dried under reduced pressure, separated and purified by column chromatography (petroleum ether / ethyl acetate (v / v)=4 / 1) to obtain the title compound as a whit...
Embodiment 2
[0187] Example 2 4-(3-chloro-4-(3-(3-fluoro-4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl Synthesis of base)tetrahydro-2H-pyran-2-yl)oxy)phenyl)urea)phenoxy)-7-methoxyquinoline-6-carboxamide
[0188]
[0189] Step 1) (2R,3S,4S,5R,6S)-2-(Acetoxymethyl)-6-(2-fluoro-4-nitrophenoxy)tetrahydro-2H-pyridine Synthesis of pyran-3,4,5-triyltriacetate
[0190]
[0191] The title compound of this step was prepared by referring to the method described in step 2 of Example 1, that is, (2R,3S,4S,5R,6R)-2-(acetoxymethyl)-6-(2,2,2-trichloro -1-iminoethoxy)tetrahydro-2H-pyran-3,4,5-triyltriacetate (1.82g, 3.69mmol), 2-fluoro-4-nitrophenol (1.16g, 7.38mmol), 4A molecular sieve (5g) and boron trifluoride diethyl ether (0.57mL, 4.4mmol) were prepared by reacting in dichloromethane (20mL), and the crude product was separated and purified by silica gel column chromatography (petroleum ether / ethyl acetate ( v / v)=3 / 1) Purification gave the title compound as a light yellow solid (1...
Embodiment 3
[0211] Example 3 4-(3-chloro-4-(3-(3-chloro-4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl Synthesis of base)tetrahydro-2H-pyran-2-yl)oxy)phenyl)urea)phenoxy)-7-methoxyquinoline-6-carboxamide
[0212]
[0213] Step 1) (2R,3S,4S,5R,6S)-2-(Acetoxymethyl)-6-(2-chloro-4-nitrophenoxy)tetrahydro-2H-pyridine Synthesis of pyran-3,4,5-triyltriacetate
[0214]
[0215] The title compound of this step was prepared by referring to the method described in step 2 of Example 1, that is, (2R,3S,4S,5R,6R)-2-(acetoxymethyl)-6-(2,2,2-trichloro -1-iminoethoxy)tetrahydro-2H-pyran-3,4,5-triyltriacetate (1.72g, 3.49mmol), 2-chloro-4-nitrophenol (0.73g, 4.2mmol), 4A molecular sieve (5g) and boron trifluoride diethyl ether (0.54mL, 4.2mmol) were prepared by reacting in dichloromethane (20mL), and the crude product was separated and purified by silica gel column chromatography (petroleum ether / ethyl acetate ( v / v)=3 / 1) afforded the title compound as a white solid (1.16 g, 65.8%).
...
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