反应详情

温度

60 °C

To a solution of 1-(3-isopropyl-1,2,4-oxadiazol-5-yl)piperidin-4-ol (590 mg, 2.79 mmol) in THF (20 mL) was added NaH (60% in mineral oil, 142 mg, 3.55 mmol) followed by 6-bromo-2-chlorobenzo[d]thiazole (631 mg, 2.54 mmol). The reaction mixture was stirred at 60° C. for 4 h. The mixture was cooled to rt, diluted with water (40 mL), and extracted with EtOAc (3×30 mL). The combined organic layers were dried (Na2SO4), filtered, and concentrated. The residue was purified by column chromatography (silica gel, hexanes-EtOAc gradient 0 to 50% EtOAc) to afford 5-(4-(6-bromobenzo[d]thiazol-2-yloxy)piperidin-1-yl)-3-isopropyl-1,2,4-oxadiazole (697 mg, 1.646 mmol, 65% yield) as a white solid.

1. temperatureThe mixture was cooled to rt
2. extractionextracted with EtOAc (3×30 mL)
3. dry with materialThe combined organic layers were dried (Na2SO4)
4. filtrationfiltered
5. concentrationconcentrated
6. customThe residue was purified by column chromatography (silica gel, hexanes-EtOAc gradient 0 to 50% EtOAc)