反应详情

温度

70 °C

In a 500 mL round bottom flask under nitrogen, containing a solution of 9 g (16.23 mmol) of 6-{4-[5-cyclopropyl-3-(2,6-dichloro-phenyl)-isoxazol-4-ylmethoxy]-piperidin-1-yl}-1-methyl-1H-indole-3-carboxylic acid methyl ester in 80 mL of methanol, 80 mL of THF and 30 mL dioxane, is added 2N KOH (40 mL, 81.16 mmol). The reaction mixture is stirred at 70° C. overnight. The reaction mixture is then cooled to room temperature, and the solvent removed under vacuum. The residue is diluted with 100 mL of water, and washed with MTBE. The aqueous layer is acidified (pH 5) by addition of 2N HCl, then, it is extracted with CH2Cl2 (3×150 mL). The organics are dried over MgSO4, filtered, and evaporated to yield a light green solid that is recrystallized from MeOH/CH3CN (6.05 g (70%)). MS (m/e): 540 (M+1).

1. temperatureThe reaction mixture is then cooled to room temperature
2. customthe solvent removed under vacuum
3. additionThe residue is diluted with 100 mL of water
4. washwashed with MTBE
5. additionby addition of 2N HCl
6. extractionit is extracted with CH2Cl2 (3×150 mL)
7. dry with materialThe organics are dried over MgSO4
8. filtrationfiltered
9. customevaporated
10. customto yield a light green solid that
11. customis recrystallized from MeOH/CH3CN (6.05 g (70%))