Cephalosporin antibiotics
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United States of America Patent
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Jul 30, 1996
Grant Date -
N/A
app pub date -
Sep 7, 1994
filing date -
Sep 11, 1993
priority date (Note) -
Expired
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Abstract
The present invention relates to a cephalosporin compound represented by the following general formula (I): ##STR1## its pharmaceutically acceptable non-toxic salt, physiologically hydrolyzable ester, hydrate or solvate, or isomers thereof, in which R.sup.1 represents hydrogen or an amino-protecting group, R.sup.2 and R.sup.3 can be identical or different and independently of one another represent hydrogen or a hydroxy-protecting group, or R.sup.2 and R.sup.3 together can form a cyclic diol-protecting group, R.sup.4 represents hydrogen or a carboxyl-protecting group, R.sup.5, R.sup.6 and R.sup.7 independently of one another represent hydrogen, amino or substituted amino, hydroxy, alkoxy, C.sub.1-4 alkyl, carboxyl or alkoxycarbonyl, or R.sup.5 and R.sup.6 together with the carbon atoms to which they are attached can form a C.sub.3-7 cycle, and Q represents CH or N, and to a process for preparation thereof and a pharmaceutical composition containing the compound (I) as an active ingredient.
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