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Title:
A PROCESS FOR MAKING ESTRA-4,9(10)-DIENE STEROIDS
Document Type and Number:
WIPO Patent Application WO2002101014
Kind Code:
B1
Abstract:
A novel process for making estra-4,9(10)-diene-3,17-dione steroids from readily available 19-nor-androst-4-ene-3-one steroids by a straightforward three-step process. Products of this process are important intermediates in the preparation of biologically active substances.

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Inventors:
VAN RHEENEN VERLAN H
HESSLER EDWARD J
Application Number:
PCT/US2002/018305
Publication Date:
May 06, 2004
Filing Date:
June 07, 2002
Export Citation:
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Assignee:
BRIDGE ORGANICS CO (US)
International Classes:
C07J1/00; C07J71/00; (IPC1-7): C07J71/00; C07J53/00
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