2,4,4a,8-Tetrahydro-2,6, 8-trimethy-4a-(2-oxopropyl)pyrimido {[5,4-e]-1,2,4-triazine-3,5,} 7(6H)-trione 2,6,8-Trimethyl-4a-(2-oxopropyl)-2,4,4a,8-tetrahydropyrimido[5,4-e][1,2,4]triazine-3,5,7(6H)-trione AIDS-142746 AIDS142746 NSC660427 Pyrizinostatin