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. 16, 2001
Filed:
Oct. 26, 1999
Konakanchi Durga Prasad, Banjara Hills, IN;
Natco Pharma Limited, Banjara Hills, IN;
Abstract
This invention relates to an improved process for the preparation of Omeprazole of the formula-I starting from 4-nitro-2,3,5-trimethylpyridine-N-oxide and through novel intermediates 2-hydroxymethyl-3,5-dimethyl-4-nitro pyridine of the formula II and novel 2-chloromethyl-3,5-dimethyl-4-nitro pyridine of the formula III. This invention also relates to processes for the preparation of the above said novel intermediates. Omeprazole is one of the world's widely used drugs for the treatment of ulcer diseases. This compound acts by irreversible inhibition of the H,K,ATPase enzyme, which is part of the proton pump located in the parietal cell of the stomach wall.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile