4-hydroxy-5-(4-methylphenyl)-1H-pyrimidin-6-one

6-氯-4(3H)-喹唑啉酮

4-甲基硫代-6-氧代-1,6-二氢嘧啶-5-甲腈

苯基-1,3,5-三嗪

2,4-Diphenyl-1,3,5-triazine