AIDS-165019 AIDS165019 L-Leucine, N-[(2S,5S,8S,11S)-2-(1-carboxycyclobutyl)-8-(1,1-dimethylethyl)-12-methyl-11-(1-methylethyl)-1,4,7,10,13-pentaoxo-5-[2-oxo-2-(1-pyrrolidinyl)ethyl]-15-phenyl-3,6,9,12-tetraazapentadec-1-yl]- PhCH2CH2CO-N-Me-Val-Tbg-Asp(pyrrolidino)-Asp(cyBu)-Leu-OH