Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-03-15
1993-04-13
Rizzo, Nicholas S.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
540227, 540226, C07D50136, A61K 31545
Patent
active
052023150
ABSTRACT:
The present invention relates to new cephalosporin compounds of the formula(I), pharmaceutically acceptable non-toxic salts thereof, and physiologically hydrolyzable esters and solvates thereof, which have potent and broad antibacterial activities ##STR1## wherein R.sup.1 is a C.sub.1.about.4 alkyl, C.sub.3.about.4 alkenyl, C.sub.3.about.4 alkynyl group, or --C(R.sup.a)(R.sup.b)CO.sub.2 H.sub.1 wherein R.sup.a and R.sup.b are the same or different, and each is a hydrogen atom or a C.sub.1.about.4 alkyl group, or R.sup.a and R.sup.b form a C.sub.3.about.7 cycloalkyl group with the carbon atom to which they are linked;
Bang Chan S.
Kim Won S.
Kim Yong Z.
Lim Jong C.
Oh Hun S.
Lucky Ltd.
Rizzo Nicholas S.
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