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:
Mar. 31, 1992
Filed:
Jul. 06, 1990
Banyu Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
A compound represented by formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group; R.sup.2 and R.sup.3, which may be the same or different, each represents a hydrogen atom or a lower alkyl group; and R.sup.4 represents a carboxyl group, a lower alkoxycarbonyl group, a carbamoyl group, a lower alkylcarbamoyl group, a di-lower alkylcarbamoyl group, or a carbonyl group substituted with a heterocyclic group selected from the group consisting of an aziridinyl group, an azetidinyl group, a pyrrolidinyl group, a piperidino group, a morpholino group, a thio-morpholino group, a piperazinyl group, and a 4-lower alkyl-1-piperazinyl group, or a pharmaceutically acceptable salt or ester thereof. The compound of formula (I) and their salts or esters exhibit excellent antibacterial activity.