AU Patent

AU2021269870A1 — Method for the preparation of androgen receptor antagonists and intermediates thereof

Assigned to Orion Oyj · Expires 2023-01-19 · 3y expired

What this patent protects

The present invention relates to an improved process for the preparation of 2-chloro-4-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)benzonitrile (III) which is useful as an intermediate in the preparation of carboxamide structured androgen receptor antagonists. The process compr…

USPTO Abstract

The present invention relates to an improved process for the preparation of 2-chloro-4-(1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)benzonitrile (III) which is useful as an intermediate in the preparation of carboxamide structured androgen receptor antagonists. The process comprises preparation of compound (III) using heterogeneous palladium catalyst.

Drugs covered by this patent

Patent Metadata

Patent number
AU2021269870A1
Jurisdiction
AU
Classification
—
Expires
2023-01-19
Drug substance claim
No
Drug product claim
No
Assignee
Orion Oyj
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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