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USPTO Patent US12583840B2 for Androgen Receptor Antagonists Preparation

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Published March 24th, 2026
Detected March 24th, 2026
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Summary

The USPTO has granted patent US12583840B2 to Orion Corporation for a method of preparing androgen receptor antagonists and their intermediates. The patent details a process using a heterogeneous palladium catalyst for the preparation of a specific benzonitrile compound useful in the synthesis of carboxamide-structured androgen receptor antagonists.

What changed

The United States Patent and Trademark Office (USPTO) has issued patent US12583840B2 to Orion Corporation. This patent covers a novel method for preparing 2-chloro-4-(1-tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)benzonitrile, an intermediate compound crucial for the synthesis of carboxamide-structured androgen receptor antagonists. The described process specifically utilizes a heterogeneous palladium catalyst.

This patent grant is primarily an intellectual property matter and does not impose new regulatory obligations on drug manufacturers or pharmaceutical companies. However, it signifies a proprietary advancement in the synthesis of specific pharmaceutical intermediates. Companies operating in this space should be aware of this granted patent to ensure they do not infringe on Orion Corporation's intellectual property rights when developing or manufacturing similar compounds.

Source document (simplified)

← USPTO Patent Grants

Method for the preparation of androgen receptor antagonists and intermediates thereof

Grant US12583840B2 Kind: B2 Mar 24, 2026

Assignee

ORION CORPORATION

Inventors

Arne Grumann, Oskari Karjalainen

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 preparation of carboxamide structured androgen receptor antagonists. The process comprises preparation of compound (III) using heterogeneous palladium catalyst.

CPC Classifications

C07D 403/12 C07D 405/04 B01J 23/44 B01J 27/24

Filing Date

2021-05-10

Application No.

17924505

Claims

21

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Named provisions

Method for the preparation of androgen receptor antagonists and intermediates thereof

Classification

Agency
USPTO
Published
March 24th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US12583840B2

Who this affects

Applies to
Drug manufacturers Pharmaceutical companies
Industry sector
3254 Pharmaceutical Manufacturing
Activity scope
Drug Synthesis Chemical Manufacturing
Geographic scope
United States US

Taxonomy

Primary area
Pharmaceuticals
Operational domain
Legal
Topics
Intellectual Property Chemical Manufacturing

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