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. 15, 1987
Filed:
Nov. 26, 1984
Tadashi Hirata, Yokohama, JP;
Kenichi Mochida, Hiratsuka, JP;
Chihiro Shiraki, Machida, JP;
Kiyoshi Sato, Mishima, JP;
Kyowa Hakko Kogyo Co., Ltd., Tokyo, JP;
Abstract
.beta.-Lactam compounds represented by the general formula: ##STR1## (wherein X represents CH.sub.2, S or O; Y represents a hydroxyl group, a lower alkanoyloxy group or a lower alkoxycarbonyloxy group; W is a group represented by CH.sub.2, NH, ##STR2## A is a phenyl group, a naphthyl group, or a monocyclic or dicyclic heterocyclic group, respectively substituted by (Y).sub.n ; R.sub.4 and R.sub.5 each are a hydrogen atom, a lower alkyl group, or a cycloalkylidene group with a carbon atom combined therewith; l is 0 or an integer of 1, 2 or 3; m is 0 or 1; n is an integer of 1, 2, 3, 4 or 5; and R.sub.1, R.sub.2 and R.sub.3 are groups often used in the conventional .beta.-lactam compounds) have strong antimicrobial activities against a wide range of Gram positive and negative bacteria; particularly Gram negative bacteria including Pseudomonas aeruginosa, Pseudomonas sepatia and various Enterobacters.