(2Z)-2-[2-(difluoromethylsulfanyl)ethoxyimino]-2-[2-(tritylamino)-1,3-thiazol-4-yl]acetic acid 、
tert-butyl(6S,7S)-7-amino-3-hydroxymethyl-8-oxo-4-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylate 生成 tert-butyl (6S,7S)-7-[[(2Z)-2-[2-(difluoromethylsulfanyl)ethoxyimino]-2-[2-(tritylamino)-1,3-thiazol-4-yl]acetyl]amino]-3-(hydroxymethyl)-8-oxo-4-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate