AIDS-165026 AIDS165026 L-Leucine, N-[(2S)-2-[[(2S,3S)-3-methyl-2-[[(2S)-3-methyl-2-[methyl(1-oxo-3-phenylpropyl)amino]-1-oxobutyl]amino]-1-oxopentyl]amino]-4-oxo-4-(1-pyrrolidinyl)-1-thioxobutyl]-L-.alpha.-aspartyl- PhCH2CH2CO-N-Me-Val-Ile-Asp(pyrrolidino)-.psi.(CSNH)Asp-Leu-OH