17ALFA, 21-DIHYDROXYPREGNENE ESTERS ALS ANTIANDROGENE WIRKSTOFFE

摘要

17α,21-Dihydroxypregna-4,9(11)-diene-3,20-dione and 17α,21-dihydroxypregna-4-ene-3,20-dione 17 and/or 21 esters thereof having remarkable antiandrogenic activity, and the processes for the preparation thereof.