1,3,3-三甲基-2,3-二氢-1H-吲哚-2-酮

4-methyl-1,4-benzothiazin-3-one

1-[2-(甲基氨基)苯基]乙酮

3-甲基-2(3H)-苯并噻唑酮

2-ethyl-1-methylindole