Cephalosporin derivatives
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United States of America Patent
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Jun 30, 1987
Grant Date -
N/A
app pub date -
Dec 26, 1985
filing date -
Dec 27, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A compound having the formula: ##STR1## wherein R.sup.1 is a straight chain, branched chain or cyclic lower alkyl group which may be substituted by a carboxyl group, and each of R.sup.2 and R.sup.3 which may be the same or different, is a hydrogen atom, a hydroxyl group, a methoxy group or an acetoxy group, and R.sup.4 is a hydroxyl group, a methoxy group or an acetoxy group; or a pharmaceutically acceptable salt, physiologically hydrolyzable ester or solvate thereof.
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