正丁醇 、
7-chloro-3,5-dimethyl-3H-imidazo[4,5-b]pyridine-6-carboxylic acid ethyl ester 、
3-butyl-7-chloro-5-methyl-3H-imidazo[4,5-b]pyridine-6-carboxylic acid ethyl ester 以
异丙醇 为溶剂,
以3,5-dimethyl-7-(1-methylethoxy)-3H-imidazo[4,5-b]pyridine-6-carboxylic acid ethyl ester is obtained的产率得到7-isopropoxy-3,5-dimethyl-3
H-imidazo[4,5-
b]pyridine-6-carboxylic acid ethyl ester