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Last Updated: November 29, 2023

Details for Patent: 6,417,175

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Summary for Patent: 6,417,175
Title: Phosphonocephem derivatives, process for the preparation of the same, and use thereof
Abstract:A novel cephem compound of the formula: ##STR1## wherein R.sup.1 is a phosphono group or a group convertible to a phosphono group; R.sup.2 is a hydrogen atom or a group having a linkage through a carbon atom; each of Q and X is a nitrogen atom or CH; Y is S, O or CH.sub.2 ; n is 0 or 1; one of R.sup.3 and R.sup.4 is a pyridinium group which may be substituted and the other is a hydrogen atom or hydrocarbon group which may be substituted, or R.sup.3 and R.sup.4 taken together may form a quaternalized nitrogen-containing heterocyclic ring which may be substituted, or its ester or its salt, which has a superior anti-bacterial activity, stability, absorbability, etc., a production thereof and a pharmaceutical composition containing it, is provided.
Inventor(s): Ishikawa; Tomoyasu (Otsu, JP), Hashiguchi; Shohei (Toyonaka, JP), Iizawa; Yuji (Muko, JP)
Assignee: Takeda Chemical Industries, Ltd. (Osaka, JP)
Application Number:09/555,949
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,417,175
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;

Drugs Protected by US Patent 6,417,175

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: 6,417,175

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan9-351499Dec 19, 1997
PCT Information
PCT FiledDecember 17, 1998PCT Application Number:PCT/JP98/05709
PCT Publication Date:July 01, 1999PCT Publication Number: WO99/32497

International Family Members for US Patent 6,417,175

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 430155 ⤷  Try a Trial
Australia 1683299 ⤷  Try a Trial
Canada 2314564 ⤷  Try a Trial
China 1194980 ⤷  Try a Trial
China 1282335 ⤷  Try a Trial
China 1679595 ⤷  Try a Trial
Cyprus 1109276 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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