(3S,4S)-3-amino-4-(fluoromethyl)-1-(2H-tetrazol-5-yl)azetidin-2-one 、
(Z)-2-(1-t-Butoxycarbonylcycloprop-1-oxyimino)-2-(2-tritylaminothiazol-4-yl)acetic acid 生成 tert-butyl 1-[(Z)-[2-[[(2S,3S)-2-(fluoromethyl)-4-oxo-1-(2H-tetrazol-5-yl)azetidin-3-yl]amino]-2-oxo-1-[2-(tritylamino)-1,3-thiazol-4-yl]ethylidene]amino]oxycyclopropane-1-carboxylate