上游原料
benzyl 2-aminoacetate; Glycine benzyl ester hydrochloridebenzyl (1S)-2-[(2,5-dioxo-1-pyrrolidinyl)oxy]-1-methyl-2-oxoethylcarbamatebenzyl (4S)-4-[(tert-butoxycarbonyl)amino]-5-[(2,5-dioxo-1-pyrrolidinyl)oxy]-5-oxopentanoate(2S)-2-amino-4-(benzyloxy)-4-oxobutanoic acid(2S)-4-(benzyloxy)-2-({(2S)-5-(benzyloxy)-2-[(tert-butoxycarbonyl)amino]-5-oxopentanoyl}amino)-4-oxobutanoic acid(2S)-2-{[(2S)-2-amino-5-(benzyloxy)-5-oxopentanoyl]amino}-4-(benzyloxy)-4-oxobutanoic acid(5S,8S,11S)-11-[2-(benzyloxy)-2-oxoethyl]-8-[3-(benzyloxy)-3-oxopropyl]-5-methyl-3,6,9-trioxo-1-phenyl-2-oxa-4,7,10-triazadodecan-12-oic acidbenzyl (5S,8S,11S)-11-[2-(benzyloxy)-2-oxoethyl]-8-[3-(benzyloxy)-3-oxopropyl]-5-methyl-3,6,9,12-tetraoxo-1-phenyl-2-oxa-4,7,10,13-tetraazapentadecan-15-oate