Chloroform → HCID 70400495, compound

Participants

Reaction Steps

To a stirred mixture of (11β,17α)-11-(acetyloxy)-9-fluoro-17-(phenylthio)androsta-1,4-dien-3-one (300 mg) in tetrahydrofuran (12.0 ml) and methanol (6.0 ml) (in a nitrogen atmosphere) was added 1.5 ml of a 12% sodium hydroxide solution. TLC (7:3, chloroform:ethyl acetate) taken after 1 hour showed the reaction to be complete. After a total of 1.5 hours at room temperature, the reaction was quenched with water and extracted with chloroform (3×50 ml). The chloroform extracts were pooled, dried over anhydrous magnesium sulfate and evaporated to a yellow oil. This was dissolved in 10.0 ml of boiling dichloromethane, cooled, and a few drops of petroleum ether were added. The solution was left in the freezer overnight, yielding fine, light green needle-like crystals (57 mg) of an analytical specimen with consistent spectral data and melting point 248°-252° C. (with decomposition).

Provenance & Evidence