ethyl 5-(4-(N,N-dimethylamino)phenyl)oxazole-4-carboxylate 、
ethyl [2-(4-chlorophenyl)-5-(pyridin-4-yl)]oxazole-4-carboxylate 在
palladium diacetate 、
caesium carbonate 、
2-(二环己基膦基)联苯 作用下,
以
1,4-二氧六环 为溶剂,
反应 18.0h,
以87%的产率得到Ethyl 5-[4-(dimethylamino)phenyl]-2-[4-(4-ethoxycarbonyl-5-pyridin-4-yl-1,3-oxazol-2-yl)phenyl]-1,3-oxazole-4-carboxylate