CA Patent

CA2516319C — Method for preparing 17.alpha.-acetoxy-11.beta.-(4-n,n-dimethylaminophenyl)-19-norpregna-4,9-diene-3,20-dione, intermediates thereof, and methods for the preparation of such intermediates

Assigned to Texas Biomedical Research Institute · Expires 2012-09-18 · 14y expired

What this patent protects

Methods for the preparation of the 19-norprogesterone of formula I and its intermediates, in crystalline and amorphous forms.

USPTO Abstract

Methods for the preparation of the 19-norprogesterone of formula I and its intermediates, in crystalline and amorphous forms.

Drugs covered by this patent

ulipristal-acetate (ULIPRISTAL ACETATE)

Patent Metadata

Patent number: CA2516319C
Jurisdiction: CA
Classification: —
Expires: 2012-09-18
Drug substance claim: No
Drug product claim: No
Assignee: Texas Biomedical Research Institute
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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