tert-Butyl [2-bromo-5-({1-[2-(3-hydroxy-4-oxo-3,4-dihydro-2H-chromen-6-yl)ethyl]piperidin-4-yl}methyl)phenoxy]acetate 在
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
反应 2.5h,
以91%的产率得到[2-Bromo-5-({1-[2-(3-hydroxy-4-oxo-3,4-dihydro-2H-chromen-6-yl)ethyl]piperidin-4-yl}methyl)phenoxy]acetic acid hydrochloride