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. 29, 1992
Filed:
Jul. 10, 1990
Manabu Sasho, Ibaraki, JP;
Hiroshi Yamauchi, Ibaraki, JP;
Motosuke Yamanaka, Chiba, JP;
Takaharu Nakamura, Chiba, JP;
Kanemasa Katsu, Ibaraki, JP;
Isao Sugiyama, Ibaraki, JP;
Yuuki Komatu, Ibaraki, JP;
Shigeto Negi, Ibaraki, JP;
Eisai Co., Ltd., Tokyo, JP;
Abstract
3-Substituted vinyl cephalosporin derivatives represented by the following formula: ##STR1## wherein R.sup.1 represents a hydroxyl or lower alkoxyl group, X represents a nitrogen atom or a group represented by the formula --CH.dbd., R.sup.2 represents a carboxyl group or a carboxyl group protected with a protecting group, and R.sup.3 is as defined herein, and pharmaceutically acceptable salts thereof are potent antibacterial agents. Processes for their preparation, intermediates in such processes, and antibacterial compositions containing them as active ingredients are also described.