上游原料
2-nitrophenolDiphenylacetyl chloride; 2,2-diphenylacetyl chloridebenzyl (E)-[[(benzyloxy)carbonyl]amino](methylsulfanyl)methylidenecarbamate(2R)-5-[[(benzyloxy)carbonyl]amino]-2-[(tert-butoxycarbonyl)amino]pentanoic acid2-nitrophenyl (2R)-5-[[(benzyloxy)carbonyl]amino]-2-[(tert-butoxycarbonyl)amino]pentanoate4-[(1R)-1-aminoethyl]phenolbenzyl (4R)-4-[(tert-butoxycarbonyl)amino]-5-[[(1R)-1-(4-hydroxyphenyl)ethyl]amino]-5-oxopentylcarbamatebenzyl (4R)-4-amino-5-[[(1R)-1-(4-hydroxyphenyl)ethyl]amino]-5-oxopentylcarbamatebenzyl (4R)-4-[(2,2-diphenylacetyl)amino]-5-[[(1R)-1-(4-hydroxyphenyl)ethyl]amino]-5-oxopentylcarbamate(2R)-5-amino-2-[(2,2-diphenylacetyl)amino]-N-[(1R)-1-(4-hydroxyphenyl)ethyl]pentanamidebenzyl (E)-[[(benzyloxy)carbonyl]amino][((4R)-4-[(2,2-diphenylacetyl)amino]-5-[[(1R)-1-(4-hydroxyphenyl)ethyl]amino]-5-oxopentyl)amino]methylidenecarbamate