AU Patent

AU2009356897A1 — Process for the preparation of O-desmethyl-venlafaxine and salts thereof

Assigned to Pharmathen SA · Expires 2012-08-09 · 14y expired

What this patent protects

The present invention relates to a novel process for the preparation of O-desmethyl venlafaxine (ODV) and the pharmaceutically acceptable salts thereof, wherein it comprises (i) provision of spiro-venlafaxine compound as intermediate; (ii) conversion of spiro-venlafaxine intermed…

USPTO Abstract

The present invention relates to a novel process for the preparation of O-desmethyl venlafaxine (ODV) and the pharmaceutically acceptable salts thereof, wherein it comprises (i) provision of spiro-venlafaxine compound as intermediate; (ii) conversion of spiro-venlafaxine intermediate into ODV free base in a one-pot process; and (iii) optionally conversion ODV free base into pharmaceutically acceptable salts. The present invention further relates to novel processes for the preparation of crystalline salts of OD V-succinate and ODV-oxalate.

Drugs covered by this patent

Patent Metadata

Patent number
AU2009356897A1
Jurisdiction
AU
Classification
—
Expires
2012-08-09
Drug substance claim
No
Drug product claim
No
Assignee
Pharmathen SA
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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