29-Amino-8,11-bis(4-aminobutyl)-23-(3-((amino(imino)methyl)amino)propyl)-5-(hydroxymethyl)-2-isobutyl-14,26-diisopropyl-20,30-dimethyl-4,7,10,13,16,19,22,25,28-nonaoxo-3,6,9,12,15,18,21,24,27-nonaazah\tentriacontan-1-oic acid AIDS-133281 AIDS133281 NSC628623