1-羟基-10-甲基-9(10H)-吖啶酮

4-羟基-N-甲基-2-喹啉

1-methyl-2-phenylquinolin-4-one

1,3-二甲基-2,4-(1H,3H)-喹唑啉二酮

4-hydroxy-1-methyl-3-methylsulfinylquinolin-2-one