New steroid derivatives of pregna-4,9(11), 17(20)-trien-3-one, their preparation their use in the preparation of derivatives of pregna-4,9(11), 16-trine-3,20-dione type and intermediates thereof,申请号IE19920001669-传众专利搜索

New steroid derivatives of pregna-4,9(11), 17(20)-trien-3-one, their preparation their use in the preparation of derivatives of pregna-4,9(11), 16-trine-3,20-dione type and intermediates thereof

申请公布号：IE76920(B1)

申请号：IE19920001669

申请日期：1992.07.01

申请公布日期：1997.11.05

申请人：

ROUSSEL-UCLAF

发明人：FRANCIS BRION;JEAN BUENDIA;CHRISTIAN DIOLEZ;MICHEL VIVAT

分类号：C07J7/00;C07J13/00;C07J21/00;C07J33/00;C07J75/00;(IPC1-7):C07J13/00;C07H21/00;C07J5/00

主分类号：C07J7/00

摘要：<p>The invention relates to the compounds (I): …<IMAGE>… where Hal is chlorine or bromine, R is (C1-C6)alkyl, (C7-C15)aralkyl or a silylated residue, K is a group …<IMAGE>… (n = 2 or 3) and the wavy lines symbolise the possible existence of 2 isomers, to their preparation and to their application in the preparation of the compounds (A): …<IMAGE>… where R1 is a (C1-C8)acyl and new intermediate.</p>