The synthesis of 7 beta-hydroxy-epiandrosterone (6) possessing strong anti-inflammatory properties was achieved starting from 3 beta-acetoxy-17,17-(ethylenedioxy)-5-androsten (1). This approach involved as a main step an allylic oxidation of the C-7 followed by two reduction reactions of the double bond and of the carbonyl group. This stereoselective synthesis in 5 steps gave 7 beta-hydroxy-epiandrosterone in 63% overall yield. (C) 2010 Elsevier Inc. All rights reserved.
The synthesis of 7 beta-hydroxy-epiandrosterone (6) possessing strong anti-inflammatory properties was achieved starting from 3 beta-acetoxy-17,17-(ethylenedioxy)-5-androsten (1). This approach involved as a main step an allylic oxidation of the C-7 followed by two reduction reactions of the double bond and of the carbonyl group. This stereoselective synthesis in 5 steps gave 7 beta-hydroxy-epiandrosterone in 63% overall yield. (C) 2010 Elsevier Inc. All rights reserved.