ethyl 5-hydroxy-1-methyl-2-(methylthio)-6-oxo-1,6-dihydropyrimidine-4-carboxylate 、
溴甲苯 在
potassium carbonate 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 72.0h,
以25.3%的产率得到2-methanesulfonyl-1,6-dihydro-1-methyl-6-oxo-5-(phenylmethoxy)-4-pyrimidinecarboxylic acid ethyl ester