、
methyl 3-hydroxy-5-(1H-imidazo[4,5-c]pyridin-1-yl)thiophene-2-carboxylate 、
methyl 3-hydroxy-5-(3H-imidazo[4,5-c]pyridin-3-yl)thiophene-2-carboxylate 、
potassium carbonate 、
α-甲基-2-三氟甲基苄溴 以
N,N-二甲基甲酰胺 为溶剂,
以yield methyl 5-(1H-imidazo[4,5-c]pyridin-1-yl)-3-{1-[2-(trifluoromethyl)phenyl]ethoxy}thiophene-2-carboxylate and methyl 5-(3H-imidazo[4,5-c]pyridin-3-yl)-3-{1-[2-(trifluoromethyl)phenyl]ethoxy}thiophene-2-carboxylate的产率得到methyl 5-(1H-imidazo[4,5-c]pyridin-1-yl)-3-{1-[2-(trifluoromethyl)phenyl]ethoxy}thiophene-2-carboxylate