、
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 、
1-氯-2-(1-氯乙基)苯 以
N,N-二甲基甲酰胺 为溶剂,
以yield methyl 3-[1-(2-chlorophenyl)ethoxy]-5-(1H-imidazo[4,5-c]pyridin-1-yl)thiophene-2-carboxylate and methyl 3-[1-(2-chlorophenyl)ethoxy]-5-(3H-imidazo[4,5-c]pyridin-3-yl)thiophene-2-carboxylate的产率得到methyl 3-[1-(2-chlorophenyl)ethoxy]-5-(1H-imidazo[4,5-c]pyridin-1-yl)thiophene-2-carboxylate