CN Patent

CN1541220A — 作为抗雄激素剂的17α,21-二羟基孕烯酯

Assigned to Cassiopea SpA · Expires 2004-10-27 · 22y expired

What this patent protects

具有显著抗雄激素活性的17α，21－二羟基孕－4，9－二烯－3，20－二酮和17α，21－二羟基孕－4－烯－3，20－二酮17和/或21酯，及其制备方法。

USPTO Abstract

具有显著抗雄激素活性的17α，21－二羟基孕－4，9－二烯－3，20－二酮和17α，21－二羟基孕－4－烯－3，20－二酮17和/或21酯，及其制备方法。

Drugs covered by this patent

Winlevi (CLASCOTERONE) · Sun Pharma

Patent Metadata

Patent number: CN1541220A
Jurisdiction: CN
Classification: —
Expires: 2004-10-27
Drug substance claim: No
Drug product claim: No
Assignee: Cassiopea 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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.