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. 25, 1981
Filed:
Apr. 14, 1980
Applicant:
Inventors:
Yoshimasa Machida, Wako, JP;
Isao Saito, Chofu, JP;
Seiichiro Nomoto, Tokyo, JP;
Shigeto Negi, Kodaira, JP;
Takeo Kanai, Honjo, JP;
Kyosuke Kitoh, Kawagoe, JP;
Kanemasa Katsu, Chofu, JP;
Yukio Ohya, Koganei, JP;
Takeshi Nagasu, Tokyo, JP;
Assignee:
Eisai Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
424246 ; 544 27 ;
Abstract
Novel cephalosporin compounds of the general formula: ##STR1## wherein R.sub.1 represents a substituted or unsubstituted nitrogen-containing heterocyclic-thio group, R.sub.2 represents hydrogen or hydroxy, and R.sub.3, R.sub.4 and R.sub.5 each represents hydrogen, hydroxy or acyloxy, and their salts, and processes for the preparation thereof. The novel compounds and their salts have antibacterial activity.