Water → HCID 70626946, compound

Participants

Reaction Steps

A solution of 1.8 g of 9-fluoro-21-iodo-11β-hydroxypregna-1,4,16-triene-3,20-dione in 135 ml of dioxane is stirred with 90 ml of 5% sodium bisulfite at 105°C under nitrogen for 1.5 hours. The solution is cooled, poured into water, stirred for 30 minutes and filtered. The solid is washed with water and dried in a vacuum oven at 60°C over phosphorous pentoxide to give 780 mg of material. Crystallization from chloroform-methanol gives 420 mg of the title compound, melting point 327°-328°C.

Provenance & Evidence