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Last Updated: November 7, 2024

Details for Patent: 6,335,447


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Summary for Patent: 6,335,447
Title: Quinolonecarboxylic acid derivatives or salts thereof
Abstract:Novel quinolonecarboxylic acid derivatives of general formula (1) or salts thereof which have potent antibacterial effects on gram-positive bacteria in particular Propionibacterium acnes ##STR1## (wherein R.sup.1 represents a hydrogen atom or a carboxyl-protective group; R.sup.2 represents an optionally substituted cycloalkyl group; R.sup.3 represents a hydrogen atom, a halogen atom, an optionally substituted alkyl, alkoxy or alkylthio group, an optionally protected hydroxyl or amino group, or a nitro group; R.sup.4 represents an optionally substituted alkyl or alkoxy group; and Z represents a pyridin-4-yl or pyridin-3-yl group which is optionally substituted with at least one group selected from a halogen atom, an optionally substituted alkyl, alkenyl, cycloalkyl, alkoxy, alkylthio or amino group and an optionally protected hydroxyl or amino group).
Inventor(s): Hayashi; Kazuya (Toyama, JP), Kito; Tokunori (Toyama, JP), Mitsuyama; Junichi (Toyama, JP), Yamakawa; Tetsumi (Toyama, JP), Kuroda; Hiroshi (Ishikawa, JP), Kawafuchi; Hiroyo (Toyama, JP)
Assignee: Toyama Chemical Co., Ltd. (Tokyo, JP)
Application Number:09/647,763
Patent Claim Types:
see list of patent claims
Compound;

Drugs Protected by US Patent 6,335,447

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 6,335,447

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan10-110146Apr 6, 1998
Japan10-340217Nov 30, 1998
PCT Information
PCT FiledApril 06, 1999PCT Application Number:PCT/JP99/01799
PCT Publication Date:October 14, 1999PCT Publication Number: WO99/51588

International Family Members for US Patent 6,335,447

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 342897 ⤷  Sign Up
Brazil 9909456 ⤷  Sign Up
Canada 2327328 ⤷  Sign Up
China 1152029 ⤷  Sign Up
China 1299356 ⤷  Sign Up
Germany 69933660 ⤷  Sign Up
Denmark 1070713 ⤷  Sign Up
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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