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:
Jun. 28, 1988
Filed:
Jun. 20, 1986
Applicant:
Inventors:
Kuniyoshi Masuzawa, Koga, JP;
Seigo Suzue, Kuki, JP;
Keiji Hirai, Kuki, JP;
Takayoshi Ishizaki, Washimiya, JP;
Assignee:
Kyorin Pharmaceutical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
514312 ; 5142302 ; 544101 ; 546156 ;
Abstract
Pyridonecarboxylic acid derivatives of the following formula, ##STR1## wherein R is hydrogen atom or lower alkyl group, R.sup.1 is lower alkyl group, cycloalkyl group or haloalkyl group, Y is hydrogen atom or halogen atom, or Y and R.sup.1 are ##STR2## which work together, R.sup.2 is hydrogen atom, lower alkyl group, alkoxycarbonyl group or acyl group and n is 0 or 1; the hydrates and pharmaceutically acceptable salts thereof are useful as antibacterial agents.