EP Patent

EP1421099A1 — 17alfa, 21-dihydroxypregnene esters as antiandrogenic agents

Assigned to Cosmo SpA · Expires 2004-05-26 · 22y expired

What this patent protects

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

USPTO Abstract

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

Drugs covered by this patent

Patent Metadata

Patent number
EP1421099A1
Jurisdiction
EP
Classification
—
Expires
2004-05-26
Drug substance claim
No
Drug product claim
No
Assignee
Cosmo SpA
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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