2-{(4R)-4-[N-(tert-butyl)carbamoyl]-5,5-dimethyl(1,3-thiazolidin-3-yl)}(1S)-1-{(1S)-1-[2-(2,6-dimethylphenoxy)acetylamino]-2-phenylethyl}-2-oxoethyl-4-{N-[({[(2S,3S,5R)-3-(diazoazamvinyl)-5-(5-methyl-2,4-dioxo(1,3-dihydropyrimidinyl))oxolan-2-yl]methyl}oxycarbonyl)methyl]carbamoyl}butanoate AIDS-109075 AIDS109075 KNI-1039