4-methyl-6-(oxiran-2-yl)nicotinonitrile 、
5-[(1R)-1-hydroxy-2-piperazin-1-ylethyl]-4-methyl-2-benzofuran-1(3H)-one 在
crude product 、
甲醇 、
二氧化碳 作用下,
以
乙醇 为溶剂,
反应 1.0h,
以to provide 6-(1-hydroxy-2-{4-[(2R)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}ethyl)-4-methylpyridine-3-carbonitrile as individual isomers的产率得到6-(1-hydroxy-2-{4-[(2R)-2-hydroxy-2-(4-methyl-1-oxo-1,3-dihydro-2-benzofuran-5-yl)ethyl]piperazin-1-yl}ethyl)-4-methylpyridine-3-carbonitrile