2-(2-{[1-(1-{(S)-3-[2-(3-Biphenyl-4-yl-2-tert-butoxycarbonylamino-propanoylamino)-3-carbamoyl-propanoylamino]-2-hydroxy-4-phenyl-butyl}-pyrrolidin-2-yl)-methanoyl]-amino}-3-methyl-pentanoylamino)-3-methyl-butyric acid methyl ester AIDS-043107 AIDS043107 Boc-p-Bipa-Asn-[Phe-CHOHCH2)-Pro]-Ile-Val-OMe