Ethyl 5-(2-ethoxy-2-oxoethyl)-3-[2-methoxy-6-[methyl(methylsulfonyl)amino]phenyl]-2-methyl-1,2,4-oxadiazole-5-carboxylate 以
xylene 为溶剂,
反应 2.0h,
以56%的产率得到Ethyl 5-hydroxy-2-[2-methoxy-6-[methyl(methylsulfonyl)amino]phenyl]-1-methyl-6-oxopyrimidine-4-carboxylate