上游原料
phenethyl 2-[(2,5-dioxo-1-pyrrolidinyl)oxy]-1-methyl-2-oxoethylcarbamateglutamine；2,5-diamino-5-oxopentanoic acidN(2)-(2-[[(phenethyloxy)carbonyl]amino]propanoyl)glutaminebutyl 5-amino-5-oxo-2-[(2-[[(phenethyloxy)carbonyl]amino]propanoyl)amino]pentanoatebutyl 5-amino-2-[(2-aminopropanoyl)amino]-5-oxopentanoate2-[[(8R)-7-(acetamido)-6-(benzyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-8-yl]oxy]propionic acidbutyl 2-([2-[(2-[[(8R)-7-(acetamido)-6-(benzyloxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-8-yl]oxy]propanoyl)amino]propanoyl]amino)-5-amino-5-oxopentanoate1-bromobutane
