methyl 2-acetamidopent-4-ynoate

N-(2-methyl-pyridin-3-yl)-acetamide

1-乙酰基-1H-吡咯并[3,2-b]吡啶

1-乙酰基-1H-吲唑-5-羧酸甲酯

N-(acetylcarbamoyl)benzamide