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:
Aug. 31, 1976
Filed:
Mar. 10, 1975
Applicant:
Inventors:
Assignee:
Rhone-Poulenc S.A., Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603 / ; 2602391 ;
Abstract
Ampicillin is prepared by reacting an inorganic or organic base with a new penicillin G derivative of the formula: ##EQU1## (wherein R.sub.1 represents a group protecting the carboxy radical and R.sub.2 represents a strong electron-attracting group, e.g. a halogenoethyl group) to open the imidazolidine ring and give an intermediate product of the formula: ##EQU2## and removing by methods known per se the groups --R.sub.1 and R.sub.2 O--CS-- which protect the carboxy radical and amine functions respectively.
Bouchaudon, Jean. (1976). Process for the preparation of ampicillin (U.S. Patent No. 3978078). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3978078
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile