Indolizine-amide derivatives, their preparation method and their application in medicine
A compound and mixture technology, applied in the field of factor XIa inhibitors and disease drugs, can solve the problems of unpublished clinical results
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Embodiment 1
[0148] (S)-5-(7-(5-chloro-2-(1H-tetrazol-1-yl)phenyl)-5-oxo-1,2,3,5-tetrahydroindolizine- 3-amido)-1H-indole-2-carboxylic acid methyl ester
[0149]
[0150]
[0151] first step
[0152] (S)-5-(7-(2-Amino-5-chlorophenyl)-5-oxo-1,2,3,5-tetrahydroindolizine-3-amido)-1H-indole -2-Carboxylic acid methyl ester
[0153] 5-Amino-1H-indole-2-carboxylic acid methyl ester 1a (124 mg, 0.64 mmol, prepared by the known method "Journal of the American Chemical Society, 2007, 129 (35), 10858-10869"), (S)-7-(2-Amino-5-chlorophenyl)-5-oxo-1,2,3,5-tetrahydroindolizine-3-carboxylic acid 1b (200mg, 0.64mmol, using Prepared by the method disclosed in the patent application "WO2013093484"), 1-hydroxybenzotriazole (104mg, 0.77mmol), dicyclohexylcarbodiimide (160mg, 0.77mmol) were dissolved in 10mL N,N-dimethyl Formamide, stirred at room temperature for 16 hours. Filter and wash the filter cake with 20 mL of N,N-dimethylformamide. The mother liquors were combined and concentrated under re...
Embodiment 2
[0160] (S)-5-(7-(5-chloro-2-(1H-tetrazol-1-yl)phenyl)-5-oxo-1,2,3,5-tetrahydroindolizine- 3-amido)-1H-indole-2-carboxylic acid
[0161]
[0162] first step
[0163] (S)-5-(7-(5-chloro-2-(1H-tetrazol-1-yl)phenyl)-5-oxo-1,2,3,5-tetrahydroindolizine -3-amido)-1H-indole-2-carboxylic acid methyl ester 1 (23mg, 0.043mmol) was added to 2mL methanol and tetrahydrofuran (V / V=1:1) mixed solvent, and 0.2mL 2N hydroxide was added Lithium solution was stirred at room temperature for 2 hours. Concentrate under reduced pressure, add 10mL of water, add dropwise 2M hydrochloric acid to adjust the pH to 2~3, extract with dichloromethane and methanol (V / V=5:1, 30mL×3), combine the organic phases, wash with anhydrous sodium sulfate Dry, filter, and concentrate the filtrate under reduced pressure. Purification (HPLC) of the resulting residue by preparative separation gave the title product (S)-5-(7-(5-chloro-2-(1H-tetrazol-1-yl)phenyl)-5-oxo -1,2,3,5-tetrahydroindolizine-3-amido)-1H-indole...
Embodiment 3
[0167] (S)-7-(5-chloro-2-(1H-tetrazol-1-yl)phenyl)-N-(1H-indol-5-yl)-5-oxo-1,2, 3,5-Tetrahydroindolizine-3-carboxamide
[0168]
[0169]
[0170] first step
[0171] (S)-7-(5-chloro-2-(1H-tetrazol-1-yl)phenyl)-5-oxo-1,2,3,5-tetrahydroindolizine-3-carboxy acid
[0172] (S)-7-(2-amino-5-chlorophenyl)-5-oxo-1,2,3,5-tetrahydroindolizine-3-carboxylic acid 1b (60mg, 0.2mmol), Sodium azide (13 mg, 0.2 mmol) was dispersed in 0.3 mL of trimethyl orthoformate, and then 2 mL of glacial acetic acid was added dropwise, and the reaction was stirred at 65°C for 16 hours. Concentrate under reduced pressure, and purify the resulting residue by silica gel column chromatography with an eluent system to give the title product (S)-7-(5-chloro-2-(1H-tetrazol-1-yl)phenyl)-5 -Oxo-1,2,3,5-tetrahydroindolizine-3-carboxylic acid 3a (73 mg, gray solid), yield: 98.0%.
[0173] MS m / z(ESI): 358.1[M+1]
[0174] second step
[0175] (S)-7-(5-chloro-2-(5-chloro-2-(1H-tetrazol-1-yl)phenyl)-N-(1H-i...
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