CA Patent

CA2644095A1 — Processes for preparing morphinan-6-one products with low levels of alpha, beta-unsaturated ketone compounds

Assigned to Mallinckrodt Inc · Expires 2007-09-13 · 19y expired

What this patent protects

The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of .alpha., .beta.-unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures includi…

USPTO Abstract

The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of .alpha., .beta.-unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound. (A)

Drugs covered by this patent

Patent Metadata

Patent number
CA2644095A1
Jurisdiction
CA
Classification
—
Expires
2007-09-13
Drug substance claim
No
Drug product claim
No
Assignee
Mallinckrodt Inc
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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