4-[(4-hydroxy-2-methyl-6-oxopyrimidin-1(6H)-yl)methyl]benzoate 、
2,4-二氟溴苄 在
18-冠醚-6 、
potassium carbonate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 1.0h,
以69%的产率得到methyl 4-{[4-[(2,4-difluorobenzyl)oxy]-2-methyl-6-oxopyrimidin-1(6H)-yl]methyl} benzoate