[2-Bromo-5-({1-[2-(4-oxo-3,4-dihydro-2H-chromen-6-yl)ethyl]piperidin-4-yl}methyl)phenoxy]acetic acid hydrochloride 在
甲醇 、 sodium tetrahydroborate 作用下,
反应 3.5h,
以92%的产率得到Sodium [2-bromo-5-({1-[2-(4-hydroxy-3,4-dihydro-2H-chromen-6-yl)ethyl]piperidin-4-yl}methyl)phenoxy]acetate