The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Jul. 14, 2025
Bayer Aktiengesellschaft, Leverkusen, DE;
Bayer Pharma Aktiengesellschaft, Berlin, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Bayer Pharma Aktiengsellschaft, Berlin, DE;
Abstract
The present invention relates to a novel and improved process for preparing (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula (I) and also to the preparation of the enantiomer (Ia) by racemate resolution using chiral substituted tartaric acid esters of the general formulae (IIIa) and (IIIb) where Ar represents a substituted or unsubstituted aromatic or heteroaromatic radical.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile