HRID1837238
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
380 mg of 11β-fluoro-3-hydroxy-7α-{5-[methyl-(4,4,5,5,5-pentafluoro-pentyl)-amino]-pentyl}-estra-1,3,5(10)-trien-17-one is dissolved in 25 ml of methanol and mixed with 77 mg of sodium borohydride. After 30 minutes of stirring at room temperature, the batch is added to saturated common salt solution, extracted with methylene chloride, dried on magnesium sulfate and concentrated by evaporation in a vacuum. After the crude product is chromatographed on silica gel with a methylene chloride-methanol gradient, 317 mg of 11β-fluoro-7α-{5-[methyl-(4,4,5,5,5-pentafluoro-pentyl)-amino]-pentyl}-estra-1,3,5(10)-triene-3,17β-diol is obtained as a foam, [α]D=+49° (c=0.5 in methanol).
WORKUP
后处理
- additionthe batch is added to saturated common salt solution
- extractionextracted with methylene chloride
- customdried on magnesium sulfate
- concentrationconcentrated by evaporation in a vacuum
- customAfter the crude product is chromatographed on silica gel with a methylene chloride-methanol gradient