上游原料
Dihydro-2,5-furandione; Succinic anhydride(2S)-2-[[(benzyloxy)carbonyl]amino]-3-methylbutyric acid(2S)-1-[(benzyloxy)carbonyl]-2-pyrrolidinecarboxylic aciddiphenyl (1R)-1-amino-2-phenylethylphosphonatebenzyl (2S)-2-([[(1R)-1-(diphenoxyphosphoryl)-2-phenylethyl]amino]carbonyl)-1-pyrrolidinecarboxylatediphenyl (1R)-1-([[(2S)-1-((2S)-2-[[(benzyloxy)carbonyl]amino]-3-methylbutanoyl)pyrrolidinyl]carbonyl]amino)-2-phenylethylphosphonate
