(R)-N-((S)-1-{(2R,3S)-3-[(1-Benzyl-2-methyl-propylcarbamoyl)-methyl]-oxiranyl}-2-phenyl-ethyl)-2-(2-furan-3-yl-ethanoylamino)-3-methanesulfonyl-3-methyl-butyramide 3-Furan-Ac(MeSO2-Val)Phe Epoxy deriv. AIDS-045221 AIDS045221