4-(5-bromo-2-(2-(difluoromethyl)-1H-benzo[c]imidazol-1-yl)pyrimidin-4-yl)-N-((5-methyl-1,3,4-oxadiazol-2-yl)methyl)morpholine-3-carboxamide 在
palladium diacetate
caesium carbonate 作用下,
以
1,4-二氧六环 为溶剂,
以65%的产率得到2-(2-(difluoromethyl)-1H-benzo[d]imidazol-1-yl)-5-((5-methyl-1,3,4-oxadiazol-2-yl)methyl)-6a,7,9,10-tetrahydro-[1,4]oxazino[3,4-h]pteridin-6(5H)-one