(2S,4S)-4-(4-methoxybenzylthio)-1-(4-nitrobenzyloxycarbonyl)-2-pyrrolidinecarboxylic acid 、 、 (2R)-2-methyl-1-(4-nitrobenzyloxycarbonyl)piperazine 以0.21 g of the title compound was obtained as an amorphous solid的产率得到(2S,4S)-4-mercapto-2-[(3R)-3-methyl-4-(4-nitrobenzyloxycarbonyl)-1-piperazinylcarbonyl]-1-(4-nitrobenzyloxycarbonyl)pyrrolidine