Ethanol → HCID 69790149, compound

Participants

Reaction Steps

—Sodium borohydride (1.47 g) was added to a solution of (7α)-7-ethenyl-3-methoxyestra-1,3,5(10),14-tetraen-17-one (1.50 g) obtained in the previous step in a mixture of tetrahydrofuran (27.8 ml), ethanol (27.8 ml) and water (4.55 ml). The reaction mixture was stirred for 50 min. and then poured into water. The product was extracted into ethyl acetate. The combined organic phases were washed with water and brine, dried over sodium sulfate and concentrated, to afford (7α,17β)-7-ethenyl-3-methoxyestra-1,3,5(10),14-tetraen-17-ol (1.47 g). The product was used in the following step without further purification.

Provenance & Evidence