反应详情

A mixture of 6-[3-(1H-indol-4-yloxy)-propoxy]-7-propyl-3-trifluoromethyl-benzo[d]isoxazole (0.100 g, 0.24 mmol), methyl-2-bromoacetate (0.109 g, 0.72 mmol), potassium carbonate (0.050 g, 0.36 mmol), potassium iodide (0.008 g, 0.05 mmol), and acetonitrile (15 mL) was stirred and refluxed for 12 hours. The mixture was cooled to room temperature and filtered to remove suspended salts. The solvent was removed in vacuo and the residue partitioned between dichloromethane and water. The organic layer was collected, washed with water (2×20 mL) and brine (2×20 mL), and then dried over anhydrous Na2SO4. The solvent was removed and the residue was purified by flash chromatograph over silica gel using hexane/ethyl acetate (95/5) as an eluant to afford {4-[3-(7-propyl-3-trifluoromethyl-benzo[d]isoxazol-6-yloxy)-propoxy]-indol-1-yl}-acetic acid methyl ester (0.089 g, yield: 76%).

1. temperaturerefluxed for 12 hours
2. filtrationfiltered
3. customto remove
4. customThe solvent was removed in vacuo
5. customthe residue partitioned between dichloromethane and water
6. customThe organic layer was collected
7. washwashed with water (2×20 mL) and brine (2×20 mL)
8. dry with materialdried over anhydrous Na2SO4
9. customThe solvent was removed
10. customthe residue was purified by flash chromatograph over silica gel