(4-nitrophenyl)methyl (6S)-3-diphenoxyphosphoryloxy-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate 、
3-Methyl-2-mercaptomethyl pyridine 、
碘甲烷 生成 (6S)-3-[(1,3-dimethylpyridin-1-ium-2-yl)methylsulfanyl]-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate