2-anilino-3,1-benzoxazin-4-one

3-苯基-2,4(1H,3H)-喹唑啉二酮

3-氨基-2-疏基-3H-喹唑烷-4-酮

2-硝基苯酰肼

3-amino-4-imino-2-oxo-1,2,3,4-tetrahydroquinazoline