CA2471666C — An improved process for the preparation of oxcarbazepine and related intermediates
Assigned to Apotex Pharmachem Inc · Expires 2009-10-13 · 17y expired
What this patent protects
A process for preparing Oxcarbazepine III (see formula III) comprising: a) reacting oximinostilbene IV (see formula IV) with chlorosulfonyl isocyanate in an inert organic solvent and isolating compound V (see formula V) b) hydrolyzing compound V to form crude Oxcarbazepine III (s…
USPTO Abstract
A process for preparing Oxcarbazepine III (see formula III) comprising: a) reacting oximinostilbene IV (see formula IV) with chlorosulfonyl isocyanate in an inert organic solvent and isolating compound V (see formula V) b) hydrolyzing compound V to form crude Oxcarbazepine III (see formula III) c) purifying oxcarbazepine.
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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