isopropyl (S)-2-(tert-butoxy)-2-(4‘-(4,4-dimethylpiperidin-1-yl)-5-hydroxy-6’-methyl-[2,3‘-bipyridin]-5‘-yl)acetate 、
3-hydroxybutyl methanesulfonate 在
potassium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以34.6%的产率得到(2S)-isopropyl 2-(tert-butoxy)-2-(4'-(4,4-dimethylpiperidin-1-yl)-5-(3-hydroxybutoxy)-6'-methyl-[2,3'-bipyridin]-5'-yl)acetate