3-{3-hydroxy-6-[2-(4-methoxycarbonylmethylphenyl)-ethinyl]-2-pyridyl}-propionic acid methyl ester 在
钯 crude product 、 silica gel 、
正己烷 作用下,
以
甲醇 为溶剂,
以266 mg of 3-{3-hydroxy-6-[2-(4-methoxycarbonylmethylphenyl)-ethyl]-2-pyridyl}-propionic acid-methyl ester of melting point 90°-91° is obtained的产率得到3-{3-hydroxy-6-[2-(4-methoxycarbonylmethylphenyl)-ethyl]-2-pyridyl}-propionic acid-methyl ester