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:
Jun. 23, 2020
Filed:
Feb. 01, 2018
Abbvie Inc., North Chicago, IL (US);
Michael J. Abrahamson, Chicago, IL (US);
Sanjay R. Chemburkar, Gurnee, IL (US);
Angelica B. Kielbus, Evanston, IL (US);
Russell D. Cink, Grayslake, IL (US);
AbbVie Inc., North Chicago, IL (US);
Abstract
Disclosed are methods of synthesizing racemic 2-(difluoromethyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acids and 2-(vinyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acids and their salts, such as the dicyclohexylamine salt. Also disclosed are methods for preparing enantioenriched (1R,2R)-1-((tert-butoxycarbonyl)amino)-2-(difluoromethyl)cyclopropane-1-carboxylic acid and esters of the same. These compounds are useful intermediates in the synthesis of viral protease inhibitors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile