1-(1-methyl-1H-benzo[d]imidazol-2-yl)piperidin-2-one

1-methyl-2-(1-methylbenzimidazol-2-yl)benzimidazole

5,6-二氢-3-(4-吗啉基)-2(1H)-吡啶酮

6-ethoxypiperidin-2-one

3,4,5,6-四氢-2,2'-联吡啶