[5-(2-Ethylaminomethyl-4-trifluoromethyl-phenyl)-pyridin-3-yl]-acetic acid methyl ester, dihydrochloride 、
异氰酸苄酯 以to provide {5-[2-(3-benzyl-1-ethyl-ureidomethyl)-4-trifluoromethyl-phenyl]-pyridin-3-yl}-acetic acid methyl ester的产率得到{5-[2-(3-benzyl-1-ethyl-ureidomethyl)-4-trifluoromethyl-phenyl]-pyridin-3-yl}-acetic acid methyl ester