Antibiotic C-3 catechol-substituted cephalosporin compounds, com

Details Antibiotic C-3 catechol-substituted cephalosporin compounds, com Antibiotic C-3 catechol-substituted cephalosporin compounds, com

1990-11-13

1993-03-16

Rizzo, Nicholas S.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

540222, C07D50138, A61K 31545

Patent

active

051944332

ABSTRACT:
This invention relates to novel antibiotic cephalosporin derivatives of the formula ##STR1## wherein R.sup.1 is hydrogen, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, or a radical of the formula ##STR2## in which R.sup.3 and R.sup.4 are independently hydrogen, methyl or ethyl, or R.sup.3 and R.sup.4, taken together with the carbon atom to which they are attached, may be a cycloalkylidene ring containing from 3 to 6 carbon atoms;

REFERENCES:
patent: 4742053 (1988-05-01), Nakagawa et al.
patent: 4814328 (1989-03-01), Nakagawa et al.
patent: 4906623 (1990-03-01), Matsumura et al.

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