3-(3-hydroxy-6-iodo-2-pyridyl)-propionic acid methyl ester 、
4-戊炔-1-醇 在
crude product 、 silica gel 、
正己烷 作用下,
以1.2 g of 3-[3-hydroxy-6-(5-hydroxy-1-pentynyl)-2-pyridyl]-propionic acid methyl ester is obtained as colorless oil的产率得到3-[3-hydroxy-6-(5-hydroxy-1-pentynyl)-pyridin-2-yl]-propionic acid methyl ester