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:
Sep. 14, 1993
Filed:
Mar. 23, 1990
Yasuhiro Kuramoto, Hiroshima, JP;
Masayasu Okuhira, Hiroshima, JP;
Takashi Yatsunami, Hiroshima, JP;
Wakunaga Seiyaku Kabushiki Kaisha, Osaka, JP;
Abstract
Antibacterial quinolone derivatives represented by the following formula [I] and salts thereof are disclosed. ##STR1## wherein R.sup.1 means a hydrogen atom or a carboxyl-protecting group; R.sup.2 denotes a hydrogen or halogen atom or a hydroxyl, lower alkoxyl, amino, aralkylamino, or mono- or di-(lower alkyl)amino group; A represents an oxygen or sulfur atom or N--R.sup.3 in which R.sup.3 is a hydrogen atom or an amino-protecting group; X is a hydrogen or halogen atom; Y means a nitrogen atom or C--R.sup.4 in which R.sup.4 is a hydrogen or halogen atom or a lower alkyl or lower alkoxyl group; and Z denotes a halogen atom or a substituted or unsubstituted heterocyclic group having at least one nitrogen atom as a hetero atom.