1H-Pyrazolo[3,4-d]pyrimidine, 4-(1-aziridinyl)-1-(tetrahydro-2H-pyran-2-yl)- 1H-Pyrazolo[3,4-d]pyrimidine, 4-(1-aziridinyl)-1-tetrahydropyran-2-yl- 93086-44-3 NSC44596