trimethylsilyl (5R,6R)-3,3-dimethyl-7-oxo-6-[[2-phenyl-2-(trimethylsilylamino)acetyl]amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 、
S-2-benzothiazolyl-4-ethyl-2,3-dioxo-1-piperazinethio-carboxylate 生成 sodium;N-[(2S,5R,6R)-2-carboxy-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-6-yl]-2-[(4-ethyl-2,3-dioxopiperazine-1-carbonyl)amino]-2-phenylethanimidate