反应详情

温度

70 °C

Hydrogen chloride (4 M in 1,4-dioxane) (2 mL, 8 mmol) was added to a solution of 4-(2,2-dimethylpropyl)-2-{2-[4-(5-fluoropyridin-2-yl)phenyl]-1-hydroxyethyl}-N,N-dimethyl-1H-imidazole-1-sulfonamide (207 mg, 0.45 mmol) in methanol (4 mL). After stirring at 70° C. for 1 h, volatiles were removed. The residue was partitioned between methanol/ethyl acetate and 10% aqueous sodium hydroxide. The aqueous phase was extracted with ethyl acetate. The combined organic extracts were dried (magnesium sulfate) and concentrated in vacuo. Chromatography over silica eluting with 0-100% acetone/methylene chloride then with 0-100% ethyl acetate/hexane afforded the title compound. Chiral HPLC eluting with IPA/heptane afforded the two individual enantiomers. (M+H) found: 410.

1. customvolatiles were removed
2. customThe residue was partitioned between methanol/ethyl acetate and 10% aqueous sodium hydroxide
3. extractionThe aqueous phase was extracted with ethyl acetate
4. dry with materialThe combined organic extracts were dried (magnesium sulfate)
5. concentrationconcentrated in vacuo