Water → Sodium 3-Benzoyl-5-(4,6-dimethoxypyrimidin-2-yl)oxy-2-trifluoromethylbenzofuran-4-carboxylate

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Reaction Steps

While stirring 0.35 g of sodium hydride in 30 ml of N,N-dimethylformamide at room temperature, 1.73 g of 3-benzoyl-5-hydroxy-2-trifluoromethylbenzofuran-4-carboxylic acid was gradually added thereto. After completion of the addition, the mixture was further stirred for one hour. While stirring this mixture at room temperature, 1.08 g of 4,6-dimethoxy-2-methylsulfonylpyrimidine was added thereto, and then the mixture was stirred at 70° C. for 3 hours. The mixture was returned to room temperature and poured into water. Precipitated crystals were separated by filtration and washed with water and acetone to obtain 1.02 g (yield: 40.5%) of the desired compound.

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