上游原料
(3S,5R,8aS)-3-phenylhexahydro-5H-oxazolo[3,2-a]pyridine-5-carbonitriletert-butyl 3-oxoazetidine-1-carboxylatetert-butyl 3-((3S,5R,8aS)-5-cyano-3-phenylhexahydro-5H-oxazolo[3,2-a]pyridin-5-yl)-3-hydroxyazetidine-1-carboxylatetert-butyl 3-[(2R)-2-cyano-1-[(1S)-2-hydroxy-1-phenylethyl]piperidin-2-yl]-3-hydroxyazetidine-1-carboxylate(R)-1-((S)-2-hydroxy-1-phenylethyl)-2-(3-hydroxyazetidin-3-yl)piperidine-2-carbonitrile2,3,4-trifluorobenzoyl chloride(3-hydroxy-3-((R)-1-((S)-2-hydroxy-1-phenylethyl)piperidin-2-yl)azetidin-1-yl)(2,3,4-trifluorophenyl)methanone(3-hydroxy-3-piperidin-2-ylazetidin-1-yl)-(2,3,4-trifluorophenyl)methanone2-fluoro-4-iodoaniline; 2-fluoro-4-iodophenylamine[3,4-difluoro-2-(2-fluoro-4-iodoanilino)phenyl]-[3-hydroxy-3-[(2R)-piperidin-2-yl]azetidin-1-yl]methanone