5-acetyl-N-[2-(dimethylamino)ethyl]-2-thiophenecarboxamide 、
N,N-二甲基甲酰胺二甲基缩醛 以gave N-[2-(dimethylamino)ethyl]-5-[(2E)-3-(dimethylamino)-2-propenoyl]-2-thiophenecarboxamide (1.18 g) as an amber oil的产率得到N-[2-(dimethylamino)ethyl]-5-[(2E)-3-(dimethylamino)-2-propenoyl]-2-thiophenecarboxamide