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:
Nov. 14, 1989
Filed:
Jul. 23, 1987
Hiraki Ueda, Tokushima, JP;
Hisashi Miyamoto, Tokushima, JP;
Shinji Aki, Tokushima, JP;
Tatsuya Otsuka, Tokushima, JP;
Otsuka Pharmaceutical Company, Limited, Tokyo, JP;
Abstract
Novel 4-oxoquinoline-3-carboxylic acid compounds of the formula: ##STR1## wherein R.sup.2 is a heterocyclic group: ##STR2## in which R.sup.A is H, C.sub.1 -C.sub.6 alkyl or phenyl (C.sub.1 -C.sub.6) alkyl, R.sup.B is 2-oxo-1,3-dioxolenemethyl substituted by C.sub.1 -C.sub.6 alkyl, or C.sub.3 -C.sub.8 cycloalkyl, R.sup.C is H, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxycarbonyl, or phenyl(C.sub.1 -C.sub.6)alkyl, R.sup.D is H or C.sub.1 -C.sub.6 alkyl, R.sup.G is C.sub.1 -C.sub.6 alkyl, and R.sup.H is C.sub.1 -C.sub.6 alkyl, phenyl(C.sub.1 -C.sub.6)alkyl, or C.sub.1 C.sub.6 alkanoyl, and R.sup.3 is C.sub.1 -C.sub.6 alkyl, or R.sup.3 is C.sub.1 -C.sub.6 alkyl having 1 to 3 substituents selected from OH, C.sub.1 -C.sub.6 alkoxy and halogen when R.sup.2 is ##STR3## or a salt thereof, said compounds having excellent antimicrobial activity and being useful as an antimicrobial agent, and a pharmaceutical composition containing said compound as an active ingredient.