26-(((1-(14-Amino-2-(4-aminobutyl)-5-(3-amino-3-oxopropyl)-15-hydroxy-8-methyl-4,7,10,13-tetraoxo-3,6,9,12-tetraazapentadec-1-anoyl)-2-pyrrolidinyl)carbonyl)amino)-11-(2-amino-2-oxoethyl)-20,23-bis(2-\tcarboxyethyl)-2,14,17-tris(hydroxymethyl)-5-(1H-imidazol-5-ylmethyl)-8-methyl-4,7,10,13,16,19,22,25-octaoxo-3,6,9,12,15,18,21,24-octaazanonacosane-1,29-dioic acid AIDS-142737 AIDS142737 NSC660413