上游原料
2-Chloroacetyl chloride; Chloroacetic chloridetert-butyl (3S)-3-amino-1-pyrrolidinecarboxylatetert-butyl (3S)-3-[(2-chloroacetyl)amino]-1-pyrrolidinecarboxylatetert-butyl (3S)-3-[(2-aminoacetyl)amino]-1-pyrrolidinecarboxylate1-({[imino(methylsulfanyl)methyl]amino}carbonyl)-4-nitrobenzenetert-butyl (3S)-3-{[2-({imino[(4-nitrobenzoyl)amino]methyl}amino)acetyl]amino}-1-pyrrolidinecarboxylate2-({imino[(4-nitrobenzoyl)amino]methyl}amino)-N-[(3S)pyrrolidinyl]acetamide4-nitrobenzyl (4R,5R,6S)-3-[(diphenoxyphosphoryl)oxy]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate2-({imino[(4-nitrobenzoyl)amino]methyl}amino)-N-[(3S)pyrrolidinyl]acetamide1-(tert-butyl) 2-(4-methoxybenzyl) (2S,4R)-4-hydroxy-1,2-pyrrolidinedicarboxylate1-(tert-butyl) 2-(4-methoxybenzyl) (2S,4R)-4-[(methylsulfonyl)oxy]-1,2-pyrrolidinedicarboxylate1-(tert-butyl) 2-(4-methoxybenzyl) (2S,4S)-4-(acetylsulfanyl)-1,2-pyrrolidinedicarboxylate(2S,4S)-4-(acetylsulfanyl)-1-methyl-2-pyrrolidinecarboxylic acid(2S,4S)-4-(acetylsulfanyl)-1-methyl-2-pyrrolidinecarboxylic 1,1-dimethylpropanoic anhydrideS-{(3S,5S)-5-[((3S)-3-{[2-({imino[(4-nitrobenzoyl)amino]methyl}amino)acetyl]amino}pyrrolidinyl)carbonyl]-1-methylpyrrolidinyl} ethanethioate4-nitrobenzyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-3-({(3S,5S)-5-[((3S)-3-{[2-({imino[(4-nitrobenzoyl)amino]methyl}amino)acetyl]amino}pyrrolidinyl)carbonyl]-1-methylpyrrolidinyl}sulfanyl)-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate
