5-[3-hydroxy-2-(2-methoxycarbonylethyl)-6-pyridyl]-pentanoic acid methyl ester 、 (1E)-6-bromo-1-(4-methoxyphenyl)-1-hexene 在
crude product 、 silica gel 、
正己烷 作用下,
以293 mg of 5-{2-(2-methoxycarbonylethyl)-3-[6-(4-methoxyphenyl)-(5E)-5-hexenyloxy]-6-pyridyl}-pentanoic acid methyl ester is obtained as oil的产率得到5-{2-(2-methoxycarbonylethyl)-3-[6-(4-methoxyphenyl)-(5E)-5-hexenyloxy]-6-pyridyl}-pentanoic acid methyl ester