Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1984-11-26
1987-09-15
Rizzo, Nicholas S.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
540205, 540222, 540227, C07D20512, A61K 31395
Patent
active
046940014
ABSTRACT:
.beta.-Lactam compounds represented by the general formula: ##STR1## (wherein X represents CH.sub.2, S or O; Y represents a hydroxyl group, a lower alkanoyloxy group or a lower alkoxycarbonyloxy group; W is a group represented by CH.sub.2, NH, ##STR2## A is a phenyl group, a naphthyl group, or a monocyclic or dicyclic heterocyclic group, respectively substituted by (Y).sub.n ; R.sub.4 and R.sub.5 each are a hydrogen atom, a lower alkyl group, or a cycloalkylidene group with a carbon atom combined therewith; l is 0 or an integer of 1, 2 or 3; m is 0 or 1; n is an integer of 1, 2, 3, 4 or 5; and R.sub.1, R.sub.2 and R.sub.3 are groups often used in the conventional .beta.-lactam compounds) have strong antimicrobial activities against a wide range of Gram positive and negative bacteria; particularly Gram negative bacteria including Pseudomonas aeruginosa, Pseudomonas sepatia and various Enterobacters.
REFERENCES:
patent: 4252952 (1981-02-01), Takano et al.
patent: 4275062 (1981-06-01), Breuer et al.
patent: 4291164 (1981-09-01), Hirata et al.
patent: 4343943 (1982-08-01), Hirata et al.
Hirata Tadashi
Mochida Kenichi
Sato Kiyoshi
Shiraki Chihiro
Kyowa Hakko Kogyo Co. Ltd.
Rizzo Nicholas S.
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