p-nitrobenzyl (1R,5S,6S)-2-diphenoxyphosphoryloxy-6-[(R)-1-hydroxymethyl]-1-methyl-1-carbapen-2-em-3-carboxylate 、
(2R,4S)-4-acetylthio-2-[(2R,4S)-2-methyl-N-(p-nitrobenzyloxycarbonyl)pyrrolidin-4-ylmethyl]-N-(p-nitrobenzyloxycarbonyl)pyrrolidine 生成 p-nitrobenzyl (1R,5S,6S)-6-[(R)-1-hydroxyethyl]-1-methyl-2-[(2R,4S)-2-[(2R,4S)-2-methyl-N-(p-nitrobenzyloxycarbonyl)pyrrolidin-4-ylmethyl]pyrrolidin-4-ylthio]-1-carbapen-2-em-3-carboxylate