(9-{N-[(10S,16S,3R)-1,4,11,14-tetraaza-3,10-bis(methylethyl)-5-hydroxy-7,11,14-trimethyl-8-oxa-2,9,12,15-tetraoxobicyclo[14.4.0]icos-6-yl]carbamoyl}-8-amino-4,6-dimethyl-7-oxophenoxazinyl)-N-[(10S,16S,3R)-1,4,11,14-tetraaza-3,10-bis(methylethyl)-7,11,14-trimethyl-8-oxa-2,5,9,12,15-pentaoxobicyclo[14.4.0]icos-6-yl]carboxamide AIDS-087516 AIDS087516 Actinomycin P2 NSC664989