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:
Feb. 14, 1995
Filed:
Nov. 03, 1993
Choong S Kim, Seoul, KR;
Yang S Ahn, Seoul, KR;
Kang Y Jung, Kyonggi-do, KR;
Nam H Lee, Seoul, KR;
Rok L Yun, Kyonggi-do, KR;
Seong Y Park, Seoul, KR;
Yeo H Yoon, Seoul, KR;
Keon H Lee, Kyonggi-do, KR;
Chun S Lyu, Seoul, KR;
Kwang H Lee, Seoul, KR;
Cheil Foods & Chemicals, Seoul, KR;
Abstract
The present invention relates to novel cephem compounds having the formula: ##STR1## wherein, Q is a carbon or nitrogen atom; X is an oxygen atom, or a nitroalkyl or cyanoimine group, with the proviso that X cannot be an oxygen atom when Q is a carbon atom; R.sub.1 is a hydrogen atom, or a lower alkyl group, or a lower alkyl group which may be substituted by fluoro, or by a carboxylic group or an inorganic cation salt thereof; and R.sub.2 and R.sub.3 independently are a hydrogen atom or a lower alkyl group; or pharmaceutically acceptable salts thereof. The compounds of the present invention have potent antibacterial activities against gram-negative bacteria, especially Pseudomonas, and a longer half-life than conventional cephem compounds.