反应详情

The product of Example 1E (22 mg, 0.076 mmole) was dissolved in 2.5 ml anhydrous THF under nitrogen. Sodium hydride (95%, 4 mg, 0.167 mmole) was added and the mixture was stirred at room temperature for 1 hour. Iodoethane (18 μl, 0.225 mmole) was added and the mixture was stirred at room temperature over night. The mixture was diluted with water and extracted with dichloromethane (3×). The combined organic layers were washed with brine, dried over sodium sulfate, filtered, and concentrated under reduced pressure. The resulting residue was purified by column chromatography (eluting with a mixture of 0.2% ammonium hydroxide and 2% methanol in dichloromethane) to provide the title compound (11 mg, 46%). 1H NMR (CDCl3) δ ppm 7.64 (d, J=1.36 Hz, 4H) 7.50 (d, J=8.82 Hz, 2H) 6.65 (d, J=8.82 Hz, 2H) 4.14-4.23 (m, 1H) 3.47-3.60 (m, 1H) 3.27-3.39 (m, 1H) 2.92-3.04 (m, 1H) 2.70-2.81 (m, 1H) 2.38-2.67 (m, 5H) 2.11-2.25 (m, 1H) 1.89-2.03 (m, 1H) 1.08 (t, J=7.12 Hz, 3H); MS (M+H)+=318.

1. stirringthe mixture was stirred at room temperature over night
2. extractionextracted with dichloromethane (3×)
3. washThe combined organic layers were washed with brine
4. dry with materialdried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure
7. customThe resulting residue was purified by column chromatography (
8. washeluting with a mixture of 0.2% ammonium hydroxide and 2% methanol in dichloromethane)