methyl 5-bromo-6-(2-fluoroethoxy)pyridine-2-carboxylate 、
3,3-二氟三甲叉亚胺 盐酸盐 、
R-(+)-1,1'-联萘-2,2'-双二苯膦 、
Dicaesio carbonate 在
醋酸钯 作用下,
以to give the title compound (73 mg, 54%) as light yellow solid, MS (ESI) m/e=291.1 [MH+]的产率得到methyl 5-(3,3-difluoroazetidin-1-yl)-6-(2-fluoroethoxy)pyridine-2-carboxylate