6-chloro-N-((1R,2S)-2-fluorocyclopropyl)-8-((4-methoxybenzyl)(methyl)amino)imidazo[1,2-b]pyridazine-3-carboxamide 、
tert-butyl 4-{[(3-aminopyridin-2-yl)oxy]methyl}piperidine-1-carboxylate 在
chloro(2-dicyclohexylphosphino-2’,6’-diisopropoxy-1,1’-biphenyl)[2-(2’-amino-1,1‘-biphenyl)]palladium(II) 2nd generation 、
potassium carbonate 、
2-二环己基磷-2',6'-二异丙氧基-1,1'-联苯 作用下,
以
1,4-二氧六环 为溶剂,
以35 %的产率得到tert-butyl 4-[({3-[(3-{[(2S)-2-fluorocyclopropyl]carbamoyl}-8-{[(4-methoxyphenyl)methyl](methyl)amino}imidazo[1,2-b]pyridazin-6-yl)amino]pyridin-2-yl}oxy)methyl]piperidine-1-carboxylate