Patent · US Active

Synthesis of 4-amino-5-methyl-1H-pyridin-2(1H)-on (intermediate compound for the synthesis of the MR antagonist finerenone) from 2-chloro-5-methyl-4-nitro-pyridine-1-oxide using the intermediate compound 2-chloro-5-methyl-4-pyridinamine

US12358877B2 · kind B2 · utility

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12Claims

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Assignees

BAYER HEALTHCARE LLC · DE
Bayer Pharma Aktiengesellschaft · DE

Inventors

Johannes Platzek · Berlin, DE
Kai Lovis · Düsseldorf, DE

Key dates

Filing date	Feb 28, 2020
Grant date	Jul 15, 2025
Priority date	—
Expiry date	Oct 4, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D471/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a novel and improved method for preparing 4-amino-5-methylpyridone of the formula (I) which is an intermediate in the preparation of the MR antagonist finerenone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.