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Details for Patent: 5,633,262

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Summary for Patent: 5,633,262

Title: Quinoline carboxylic acid derivatives having 7-(4-amino-methyl-3-oxime) pyrrolidine substituent and processes for preparing thereof
Abstract:The present invention relates to a novel quinolone compound having an excellent antibacterial activity. More specifically, the present invention relates to a novel quinoline(naphthyridine)carboxylic acid derivative represented by the following formula (I), which has an 4-aminomethyl-3-oximepyrrolidine substituent on 7-position of the quinolone nucleus and shows a superior antibacterial activity in contrast to the known quinolone antibacterial agents having a weak activity against gram-positive bacterial strains and also has a broad antibacterial spectrum and a highly improved pharmacokinetic property: ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and Q are defined as described in the specification.
Inventor(s): Hong; Chang Y. (Daejeon, KR), Kim; Young K. (Kyungki-do, KR), Chang; Jay H. (Daejeon, KR), Kim; Se H. (Seoul, KR), Choi; Hoon (Daejeon, KR), Nam; Do H. (Daejeon, KR), Kwak; Jin H. (Daejeon, KR), Jeong; Yi N. (Daejeon, KR), Oh; Jeong I. (Daejeon, KR), Kim; Mu Y. (Daejeon, KR)
Assignee: LG Chemical Ltd. (Seoul, KR)
Application Number:08/490,978
Patent Claim Types:
see list of patent claims
Compound; Composition; Dosage form;

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Foreign Priority and PCT Information for Patent: 5,633,262

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
South Korea94-13604Jun 16, 1994
South Korea94-39915Dec 30, 1994
South Korea94-39930Dec 30, 1994

International Patent Family for Patent: 5,633,262

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Brazil1101096► subscribe
Canada2151890► subscribe
China1058010► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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