EP1994034B1 — Processes for preparing morphinan-6-one products with low levels of alpha, beta-unsaturated ketone compounds
Assigned to Mallinckrodt Inc · Expires 2009-11-11 · 17y 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 including m…
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.
Drugs covered by this patent
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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