6-(4-bromobenzyl)-2-oxa-6-azaspiro[3.3]heptane 、 methyl 3-amino-5-(methylamino)-6-(3-methylimidazo[4,5-c]pyridin-7-yl)pyrazine-2-carboxylate 在
[(2-di-cyclohexylphosphino-3,6-dimethoxy-2’,4’,6’-triisopropyl-1,1‘-biphenyl)-2-(2‘-amino-1,1’-biphenyl)]palladium(II) methanesulfonate 、
caesium carbonate 作用下,
以
1,4-二氧六环 为溶剂,
以25 %的产率得到methyl 5-(methylamino)-6-(3-methylimidazo[4,5-c]pyridin-7-yl)-3-[4-(2-oxa-6-azaspiro[3.3]heptan-6-ylmethyl)anilino]pyrazine-2-carboxylate