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. 02, 1982
Filed:
Apr. 10, 1979
Otsuka Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
A .beta.-lactam series compound represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group; R.sup.2 represents a hydrogen atom; R.sup.3 represents a halogen atom, a nitro group, an amino group, a hydroxy group, a lower alkyl group, a lower alkoxy group, a lower alkanoylamino group, a lower alkanesulfonyloxy group or a group represented by the formula ##STR2## where R.sup.5 represents a hydrogen atom, a lower alkanoyl group, or a lower alkanesulfonyl group; R.sup.4 represents a hydrogen atom or a hydroxy group; n is 0 or 1; l is 0, 1 or 2; and A represents --C(CH.sub.3).sub.2 --CH(COOH)-- or --CH.sub.2 C(CH.sub.2 R.sup.6).dbd.C(COOH)-- where R.sup.6 represents a lower alkanoyloxy group, a group represented by the formula ##STR3## where R.sup.7 and R.sup.8 each represents a lower alkyl group and when n is 0, R.sup.1 and R.sup.2 can combine to form a cyclohexane ring together with the carbon atoms to which they are attached, and pharmaceutically acceptable salts thereof as well as a method for preparing same are disclosed. These compounds have antimicrobial activity.