1-(3-bromo-5-bromomethylbenzofuran-2-yl)-cyclopentane carboxylic acid ethyl ester 、
咪唑并二甲基吡啶 以to obtain the title compound (61)的产率得到1-[3-Bromo-5-(2-ethyl-5,7-dimethylimidazo[4, 5-b]pyridin-3-ylmethyl)benzofuran-2-yl]cyclopentane carboxylic acid ethyl ester