AIDS-134668 AIDS134668 Benzonitrile, 3,3'-(3a,4,4a,5,7,7a,8,8a-octahydro-1,3,5,7-tetraoxo-4,8-ethenopyrrolo[3,4-f]isoindole-2,6(1H,3H)-diyl)bis- NSC633258