tetrahydro-1-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl)-3-methyl-6-hydroxy-2(1H)-pyrimidinone 、
4-cyanophenyl chlorothioformate 以
吡啶 、
水 为溶剂,
生成 tetrahydro-1-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl)-3-methyl-6-(4-cyanophenylthiocarbonyloxy)-2(1H)-pyrimidinone