2-Quin-CO(MeSO2Ala)Phe Epoxy deriv. AIDS-045172 AIDS045172 [(5S)-[[N-(2-quinolinecarbonyl)-.beta.-methanesulfonyl-L-alanylyl]amino]-(4R,3S)-epoxy-6-phenyl-hexanoyl]-[(2S)-[1-phenyl-3-methyl]butyl]amide