3-氨基-1H-喹唑烷-2,4-二酮

2-巯基-4(3H)-喹唑酮

3-benzoyl-2-phenyl-4H-pyrazolo[5,1-b]quinazolin-9-one

2-phenyl-1H-pyrazolo[5,1-b]quinazolin-9-one

12H,15H-<1,3,4>thiadiazolo<2,3-b:5,4-b'>diquinazoline-12,15-dione