11-(2-Amino-2-oxoethyl)-2-(3-amino-3-oxopropyl)-23-((2-((2,6-diaminohexanoyl)amino)-3-methylpentanoyl)amino)-14-(1-hydroxyethyl)-5,20-bis(hydroxymethyl)-8-isobutyl-17-methyl-4,7,10,13,16,19,22-heptaox\to-3,6,9,12,15,18,21-heptaazahexacosane-1,26-dioic acid AIDS-134581 AIDS134581 NSC633084