5,20-Dimethyl-1,3,9,11,14,16,22,24-octaazapentacyclo[22.2.2.2~11,14~.1~4,8~.1~17,21~]dotriaconta-4(32),5,7,17(29),18,20-hexaene-2,10,15,23-tetrone 6277-08-3 AIDS-124506 AIDS124506 NSC35932