反应详情

2-(2-Chloropyrimidine-4-yl)-6-(2-fluoroethoxy)benzothiophene (105b, 80 mg, 0.26 mmol) obtained in Preparation Example 20 was dissolved in anhydrous tetrahydrofuran (4 mL). A 0.5 M sodium methoxide methanol solution (NaOMe in MeOH, 1.0 mL, 0.5 mmol) was added to the reaction mixture and stirred at room temperature for 18 hours. To the reaction mixture was added water, and organic compounds were extracted with ethyl acetate and evaporated after a treatment with sodium sulfate. Column chromatography was performed to give the target compound 2-(2-methoxypyrimidine-4-yl)-6-(2-fluoroethoxy)benzothiophene (1-34, 60 mg, 70%) as a yellow solid.

1. extractionwere extracted with ethyl acetate
2. customevaporated after a treatment with sodium sulfate