[EN] 17.BETA- (ALPHA-HYDROXY) -ESTERS OF ANDROSTANES AS INTERMEDIATES FOR THE PREPARATION FOR THE PREPARATION OF 17.BETA.-FLUORINATED-ANDROSTANE ESTERS [FR] ESTERS DE 17-BETA-(ALPHA-HYDROXY) D'ANTROSTANES, UTILISES COMME INTERMEDIAIRES DANS LA PREPARATION D'ESTERS D'ANDROSTANE 15-BETA FLUORES.
[EN] 17.BETA- (ALPHA-HYDROXY) -ESTERS OF ANDROSTANES AS INTERMEDIATES FOR THE PREPARATION FOR THE PREPARATION OF 17.BETA.-FLUORINATED-ANDROSTANE ESTERS<br/>[FR] ESTERS DE 17-BETA-(ALPHA-HYDROXY) D'ANTROSTANES, UTILISES COMME INTERMEDIAIRES DANS LA PREPARATION D'ESTERS D'ANDROSTANE 15-BETA FLUORES.
申请人:FARMABIOS SRL
公开号:WO2004052912A1
公开(公告)日:2004-06-24
Process for the preparation of polyhalogenated steroids, in particular of androstanic fluoro derivatives corticosteroids by means of the formation of new androstanic S-hydroxy alkyl or aralkyl-17-carbothioate intermediates.