EP Patent

EP2147911A1 — Process for the preparation of levetiracetam

Assigned to Zach System SpA · Expires 2010-01-27 · 16y expired

What this patent protects

A process for the manufacturing of levetiracetam, wherein said process comprises the steps of: (1) reacting the (-)-(S)-alpha-ethyl-2-oxo-1-pyrrolidine acetic acid with a substoichiometric amount of an activating agent in an alcoholic solvent, and (2) subjecting the resulting rea…

USPTO Abstract

A process for the manufacturing of levetiracetam, wherein said process comprises the steps of: (1) reacting the (-)-(S)-alpha-ethyl-2-oxo-1-pyrrolidine acetic acid with a substoichiometric amount of an activating agent in an alcoholic solvent, and (2) subjecting the resulting reaction solution of step (1) to an ammonolysis process with gaseous ammonia.

Drugs covered by this patent

Patent Metadata

Patent number
EP2147911A1
Jurisdiction
EP
Classification
—
Expires
2010-01-27
Drug substance claim
No
Drug product claim
No
Assignee
Zach System 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.

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