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US 4,540,689 AGranted
Penicillin derivative
AssigneeKureha Kagaku Kogyo Kabushiki Kaisha
InventorsShigeaki Muto, Kouichi Niimura, Takao Ando, Akihiko Kanno, Takao Furusho, Chikao Yoshikumi
Life of this patent
Estimating the term…
Abstract
A penicillin derivative having an antibacterial activity similar to a penicillin antibiotic in a living body without affecting the intestinal bacterial colonies, a process for preparing the derivative and a pharmaceutical composition in a dosage unit form containing the derivative as an active ingredient are disclosed.
Claims2
A penicillin derivative represented by the formula (I):
- ##STR18## wherein R is ##STR19## or a pharmaceutically acceptable salt thereof.
An antibacterial composition in dosage unit form comprising an effective amount of a penicillin derivative represented by the formula (I):
- ##STR20## wherein R is ##STR21## or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier therefor.
Dependencies are inferred from the claim text.