英文名称
(S)-2-{(S)-2-[(S)-2-((S)-2-{(S)-2-[(S)-2-((S)-2-tert-Butoxycarbonylamino-3-methyl-butyrylamino)-3-methyl-butyrylamino]-3-methyl-butyrylamino}-3-methyl-butyrylamino)-3-methyl-butyrylamino]-3-methyl-butyrylamino}-3-methyl-butyric acid methyl ester