2-cyclopropyl-1-[(4-fluorophenyl)sulfonyl]-1,2,2',3',5',6'-hexahydrospiro[indole-3,4'-thiopyran]-5-carboxylic acid 1',1'-dioxide 在
三乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
甲醇 、
乙醇 、
N,N-二甲基甲酰胺 为溶剂,
生成 (2S)-2-cyclopropyl-1-[(4-fluorophenyl)sulfonyl]-N-{[3-fluoro-5-(trifluoromethyl)pyridin-2-yl]methyl}-1,2,2',3',5',6'-hexahydrospiro[indole-3,4'-thiopyran]-5-carboxamide 1',1'-dioxide 、 (2R)-2-cyclopropyl-1-[(4-fluorophenyl)sulfonyl]-N-{[3-fluoro-5-(trifluoromethyl)pyridin-2-yl]methyl}-1,2,2',3',5',6'-hexahydrospiro[indole-3,4'-thiopyran]-5-carboxamide 1',1'-dioxide