((R)-3-{(S)-2-[(S)-2-((S)-2-Benzyloxycarbonylamino-3-methyl-butyrylamino)-3-methyl-butyrylamino]-3-methyl-butyrylamino}-2-hydroxy-propyl)-cyclohexylmethyl-phosphinic acid benzyl ester (HCID 68621798)|Huagongshe