EP3762371A1 — An improved process for the preparation of vortioxetine and salts thereof
Assigned to Piramal Pharma Ltd · Expires 2021-01-13 · 5y expired
What this patent protects
The present invention relates to a novel crystalline polymorphic form of 1-[2-(2,4-dimethyl- phenylsulfanyl)-phenyl]-piperazine hydrochloride; commonly known as vortioxetine hydrochloride (hereafter referred to as the compound (Ia) and process for its preparation comprising of tr…
USPTO Abstract
The present invention relates to a novel crystalline polymorphic form of 1-[2-(2,4-dimethyl- phenylsulfanyl)-phenyl]-piperazine hydrochloride; commonly known as vortioxetine hydrochloride (hereafter referred to as the compound (Ia) and process for its preparation comprising of treating the compound (Ia) (as described herein) with a ketone solvent or mixture of ketone solvent with other solvents. The present invention also relates to an improved process for the preparation of vortioxetine hydrobromide (Ia), comprising reacting the compound (I) (as described herein) with hydrogen bromide solution in acetic acid.
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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