6-methoxy-1,5-naphthyridin-4-yl trifluoromethanesulfonate 、
{(2R,5R,6S)-6-carbamoyl-2-[(4RS)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl]-tetrahydro-pyran-3-yl}-carbamic acid tert-butyl ester 在
tris(dibenzylideneacetone)dipalladium(0) chloroform complex caesium carbonate 、
R-(+)-1,1'-联萘-2,2'-双二苯膦 作用下,
以
1,4-二氧六环 为溶剂,
反应 4.17h,
生成 {(2R,5R,6S)-2-[(4R)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl]-6-(6-methoxy-[1,5]naphthyridin-4-ylcarbamoyl)-tetrahydro-pyran-3-yl}-carbamic acid tert-butyl ester 、 {(2R,5R,6S)-2-[(4s)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl]-6-(6-methoxy-[1,5]naphthyridin-4-ylcarbamoyl)-tetrahydro-pyran-3-yl}-carbamic acid tert-butyl ester