(3,4-difluorophenyl)-(2-oxo-ethyl)-carbamic acid-tert-butyl ester 、 4-(4-Iodo-phenyl)-1-methyl-piperidin-4-yl-methylamine 在
sodium hydroxide 、 sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
以76%的产率得到(3,4-difluoro-phenyl)-(2-{[4-(4-iodo-phenyl)-1-methyl-piperidin-4-ylmethyl]-amino}-ethyl)-carbamic acid tert-butyl ester