、 、 (2S,4S)-4-(4-methoxybenzylthio)-2-[(3S)-pyrrolidin-3-ylaminocarbonyl]-1-(4-nitrobenzyloxycarbonyl)pyrrolidine hydrochloride 、
N-(4-nitrobenzyloxycarbonyl)acetamidine 以608 mg of the title compound were obtained as a powder的产率得到(2S,4S)-4-mercapto-2-[(3S)-1-(N-4-nitrobenzyloxycarbonylacetimidoyl)pyrrolidin-3-ylaminocarbonyl]-1-(4-nitrobenzyloxycarbonyl)pyrrolidine