反应详情

tert-Butyl 3-{5-[2-hydroxy-5-(trifluoromethyl)phenyl]-1H-pyrazol-1-yl}azetidine-1-carboxylate, (Preparation 883, 2.20 g, 0.00574 mol), potassium carbonate (1.60 g, 0.0116 mol) and 3-cyano-N-(2,4-dimethoxybenzyl)-4-fluoro-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide, (Preparation 68, 2.50 g, 0.00575 mol) were combined in a 50 mL round bottomed flask and the flask was cooled in ice. Dimethylsulphoxide (15 mL) was added and after a few minutes the ice bath was removed and the reaction was stirred at room temperature for 3 hours under nitrogen. The reaction was diluted with water (50 mL) and extracted with tert-butylmethylether (100 mL) and the organic layer was washed with water (30 mL). The organic extracts were dried over anhydrous sodium sulphate, filtered and the solvent removed in vacuo to give the title compound as a white foam (4.76 g).

1. customwere combined in a 50 mL round bottomed flask
2. temperaturethe flask was cooled in ice
3. customwas removed
4. additionThe reaction was diluted with water (50 mL)
5. extractionextracted with tert-butylmethylether (100 mL)
6. washthe organic layer was washed with water (30 mL)
7. dry with materialThe organic extracts were dried over anhydrous sodium sulphate
8. filtrationfiltered
9. customthe solvent removed in vacuo