4-Oxo-2-pyran-CONH(MeSO2Val)Phe Epoxy deriv. 6,6-Dimethyl-4-oxo-5,6-dihydro-4H-pyran-2-carboxylic acid [(R)-1-((S)-1-{(2R,3S)-3-[(1-benzyl-2-methyl-propylcarbamoyl)-methyl]-oxiranyl}-2-phenyl-ethylcarbamoyl)-2-methanesulfonyl-2-methyl-propyl]-amide AIDS-045216 AIDS045216