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.

Date of Patent:
May. 29, 1990

Filed:

Apr. 14, 1988
Applicant:
Inventors:

Yoshimasa Machida, Ibaraki, JP;

Shigeto Negi, Ibaraki, JP;

Takashi Kamiya, Ibaraki, JP;

Yuuki Komatu, Ibaraki, JP;

Isao Sugiyama, Ibaraki, JP;

Yasunobu Kai, Ibaraki, JP;

Takaharu Nakamura, Chiba, JP;

Toshihiko Naito, Ibaraki, JP;

Kyosuke Kitoh, Ibaraki, JP;

Kanemasa Katsu, Ibaraki, JP;

Hiroshi Yamauchi, Ibaraki, JP;

Assignee:

Eisai Co., Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
514202 ; 540222 ; 540225 ;
Abstract

Novel thiadiazolylacetamide cephem derivatives of the following formula are described. ##STR1## wherein A represents a quaternary ammonio group; or a pharmaceutically acceptable salt thereof. These novel compounds are useful as antibacterial agents, because they have a broad antibacterial spectrum ranging from gram-negative bacteria to gram-positive bacteria. Processes for the preparation of these novel compounds are also described.


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