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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.:

US 4525473 B1

PDFFull Text
Date of Patent:
Jun. 25, 1985

Filed:

Mar. 30, 1983

Cephalosporins

Applicant:
Inventors:

Shimpei Aburaki, Tokyo, JP;

Hajime Kamachi, Urayasu, JP;

Yukio Narita, Yokohama, JP;

Jun Okumura, Yokohama, JP;

Takayuki Naito, Kawasaki, JP;

Assignee:

Bristol-Myers Company, New York, NY (US);

Attorney:

Lloyd; Richard R.

Primary Examiner:

Donald G Daus

Assistant Examiner:

Mary E Ceperley

Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514202 ; 544 22 ;
Abstract

Compounds of the formula ##STR1## wherein R.sup.1 is hydrogen or a conventional amino-protecting group, R.sup.2 is a straight or branched chain alkyl, alkenyl or alkynyl containing from 1 to 4 carbon atoms, and ##STR2## is a quaternary ammonio group as described herein, and nontoxic pharmaceutically acceptable salts, physiologically hydrolyzable esters and solvates thereof, as well as processes for their preparation, are disclosed. The compounds in which R.sup.1 is hydrogen are potent antibacterial agents.

Find Patent Forward Citations

Aburaki, Shimpei. (1985). Cephalosporins (U.S. Patent No. 4525473). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4525473

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