4-(4-formyl-2-thiazolyl)piperidine 、
2-(2-oxo-5-(trifluoromethyl)pyridin-1(2H)-yl)acetic acid 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以32%的产率得到2-(1-(2-(2-oxo-5-(trifluoromethyl)pyridin-1(2H)-yl)acetyl)piperidin4-yl)thiazole-4-carbaldehyde