反应详情

温度

60 °C

To a 20-mL scintillation vial containing a magnetic stir bar were added the product from Example 92C (102 mg, 0.250 mmol) and potassium hydroxide (84 mg, 1.50 mmol). Ethanol (1 mL) and water (0.25 mL) were added. The vial was heated to 60° C. and the reaction mixed for 24 hours. After cooling to room temperature, the pH was adjusted to 1 by addition of 1N hydrochloric acid. The mixture was extracted with dichloromethane (3×10 mL). The combined organic extracts were dried (MgSO4), filtered, and concentrated by rotary evaporator to afford a tan solid. The product was recrystallized from ethyl acetate/hexanes to afford 74 mg (75%) of the title compound. 1H NMR (DMSO-d6) δ 0.63 (br s, 3H), 0.91 (t, J=7.3 Hz, 3H), 1.23-1.38 (m, 8H), 1.57-1.68 (m, 12H), 1.76-1.87 (m, 1H), 2.00-2.11 (m, 1H), 2.65-2.84 (m, 4H), 8.7 (br s, 1H), 11.7 (br s, 1H). MS (ESI+) m/z 395 (M+H)+.

1. additionTo a 20-mL scintillation vial containing a magnetic stir bar
2. additionthe reaction mixed for 24 hours
3. temperatureAfter cooling to room temperature
4. extractionThe mixture was extracted with dichloromethane (3×10 mL)
5. dry with materialThe combined organic extracts were dried (MgSO4)
6. filtrationfiltered
7. concentrationconcentrated by rotary evaporator
8. customto afford a tan solid
9. customThe product was recrystallized from ethyl acetate/hexanes