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:
Mar. 26, 1991
Filed:
Feb. 23, 1989
Applicant:
Inventors:
Luigi Ratti, Bergamo, IT;
Leone Dall'Asta, Pavia, IT;
Assignee:
Biochimica Opos SpA, Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
540230 ;
Abstract
Cefadroxil monohydrate is prepared by solubilizing 7-[D-(-)-.alpha.-benzyloxycarbonylamino-.alpha.-(p-hydroxyphenyl)acetamido ]-3-methyl-3-cephem-4-carboxylic acid by silylation or by salification in an organic solvent, subjecting the solubilized acid in the solvent to catalytic hydrogenation, separating the catalyst from the solution, and adding water to the solution at a pH of about 4 to precipitate cefadroxil monohydrate.
Ratti, Luigi. (1991). Method for the preparation of monohydrate (U.S. Patent No. 5003064). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5003064
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile