[5-(2-Ethylaminomethyl-4-trifluoromethyl-phenyl)-pyridin-3-yl]-acetic acid ethyl ester 、
乙氧基乙酸 以to provide [5-(2-{[N-(2-ethoxy-acetyl)-N-ethyl-amino]-methyl}-4-trifluoromethyl-phenyl)-pyridin-3-yl]-acetic acid ethyl ester的产率得到[5-(2-{[N-(2-ethoxy-acetyl)-N-ethyl-amino]-methyl}-4-trifluoromethyl-phenyl)-pyridin-3-yl]-acetic acid ethyl ester