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Generated: December 13, 2017

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Details for Patent: 4,918,068

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Summary for Patent: 4,918,068

Title: Cephem compounds
Abstract:There are provided new cephem compounds (synisomers) represented by the following general formula (I): ##STR1## wherein R.sup.1 means a lower group, R.sup.2 denotes an ester-forming group of the carboxyl group, and the 4-methylthiazolyl group and the cephem moiety are cis to each other relative to the carbon-carbon double bond of the substituted vinyl group in the side chain at the 3-position of the cephem nucleus. The cephem compounds exhibit strong antibacterial activities not only against resistant strains of bacteria and gram-negative bacteria but also against gram-positive bacteria and moreover have very low toxicity.
Inventor(s): Yamamoto; Yuichi (Yokohama, JP), Atsumi; Kunio (Kawasaki, JP), Sakagami; Kenji (Kawasaki, JP), Yoshida; Takashi (Tokyo, JP), Nishihata; Ken (Yokohama, JP), Kondo; Sinichi (Yokohama, JP)
Assignee: Meiji Seika Kaisha, Ltd. (Tokyo, JP)
Application Number:07/019,172
Patent Claim Types:
see list of patent claims
Compound; Composition;

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Foreign Priority and PCT Information for Patent: 4,918,068

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan61-44203Mar 03, 1986

International Patent Family for Patent: 4,918,068

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany3789720► Subscribe
European Patent Office0236231► Subscribe
JapanS62205088► 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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Serving leading biopharmaceutical companies globally:

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