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:
Jan. 19, 1982
Filed:
Jul. 02, 1979
Yamanouchi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
Cephalosporin compounds shown by the general formula ##STR1## wherein R.sub.1 represents hydrogen atom or an amino group; R.sub.2 and R.sub.3, which may be the same or different, each represents hydrogen atom, a hydroxy group, an oxo group, a lower alkyl group, or a lower alkoxy group; R.sub.4 represents a hydrogen atom or a lower alkoxy group; R.sub.5 represents an acetoxy group or --S--R.sub.6 (wherein R.sub.6 represents a 5- or 6-membered nitrogen-containing heterocyclic group which can be substituted by a lower alkyl group or lower alkoxy group); and A represents a monocyclic or bicyclic heterocyclic ring containing one or two atoms selected from the group consisting of nitrogen, oxygen and a sulfur atom; and pharmaceutically acceptable nontoxic salts thereof. These compounds have excellent antimicrobial activity against various microorganisms including resistant bacteria and are used for the treatment of bacterial infections of animals including human beings.