Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1993-12-16
1995-11-07
Rizzo, Nicholas
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
540227, 540225, C07D50136, A61K 31545
Patent
active
054648297
ABSTRACT:
A cephalosporin derivative having a quaternary salt type substituent group at the 3-position, represented by formula (I): ##STR1## wherein X is a carbon atom or a nitrogen atom; Y is a sulfur atom, an oxygen atom or a nitrogen atom substituted with a substituted or unsubstituted lower alkyl group; R.sup.1 is a hydrogen atom, a lower alkyl group or a substituted lower alkyl group; R.sup.2 is a lower alkyl group, a substituted lower alkyl group, a lower alkylene group or a substituted lower alkylene group; and A is an unsaturated six-membered heterocyclic ring containing at least one nitrogen atom, or a pharmaceutically acceptable salt thereof is disclosed. The derivatives have excellent antibacterial activities and can be used as a drug for the treatment of various bacterial infections.
REFERENCES:
patent: 4388314 (1983-06-01), Nannini et al.
patent: 4988687 (1991-01-01), Nakagawa et al.
patent: 5247073 (1993-09-01), Ternansky
Chemical Abstracts vol. 122:31198 (1995).
Chemical Abstracts vol. 108:221493 (1988).
Iwamatsu Katsuyoshi
Kano Yuko
Shibahara Seiji
Tamura Atsushi
Tsushima Masaki
Meiji Seika Kaisha Ltd.
Rizzo Nicholas
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