2-[(N-{1-[N-(1-{N-[(1S)-2-hydroxy-1-benzylethyl]carbamoyl}-2-methylpropyl)carbamoyl]-4-(amidinoamino)butyl}carbamoyl)amino]-3-phenylpropanoic acid AIDS-005658 AIDS005658 FERM P-13134 Mer-N5075A