USPTO Patent US12583840B2 for Androgen Receptor Antagonists Preparation
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)
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
Named provisions
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