ammonium (3R)-1-[5-(3-{[2-(difluoromethoxy)phenyl]methyl}-2,7-dimethylimidazo[1,2-a]pyridin-6-yl)pyrimidin-2-yl]piperidine-3-carboxylate 、
ethyl 1-methyl-4-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-yl]cyclohex-3-ene-1-carboxylate 在
1,1'-双(二苯膦基)二茂铁二氯化钯(II)二氯甲烷复合物 、
sodium carbonate 作用下,
以
1,4-二氧六环 、
水 为溶剂,
反应 4.5h,
以57%的产率得到ethyl 4-[5-(3-{[2-(difluoromethoxy)phenyl]methyl}-7-fluoro-2-methylimidazo[1,2-a]pyridin-6-yl)pyrimidin-2-yl]-1-methylcyclohex-3-ene-1-carboxylate