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US 6,001,996 AGranted
Complexes of cephalosporins and carbacephalosporins with parabens
AssigneeEli Lilly and Company
InventorsJane G. Amos, Joseph M. Indelicato, Carol E. Pasini, Susan M. Reutzel
Life of this patent
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Abstract
The invention provides complexes of the formula: ##STR1## wherein X is chloro, hydrogen, vinyl, or --CH.sub.3, Z is CH.sub.2 or S; n is 0-5; Y is phenyl or 1,4-cyclohexadien-1-yl; R.sub.1 and R.sub.2 are hydrogen or hydroxy, with the proviso that R.sub.1 and R.sub.2 are not both hydrogen and R.sub.3 is --COO.sup.-, --COO(C.sub.1 -C.sub.4 alkyl), --NO.sub.2 or ##STR2## wherein R.sub.4 is C.sub.1 -C.sub.4 alkyl.
Claims2
A complex of the formula ##STR6## wherein X is chloro, hydrogen, vinyl, or --CH.sub.3,
- Z is CH.sub.2 ;
- n is 0 or 5;
- Y is phenyl or 1,4-cyclohexadien-1-yl;
- R.sub.1 and R.sub.2 are hydrogen or hydroxy, with the proviso that R.sub.1 and R.sub.2 are not both hydrogen and
- R.sub.3 is --CO.sub.2 H, --COO(C.sub.1 -C.sub.4 alkyl), --NO.sub.2 or ##STR7## wherein R.sub.4 is C.sub.1 -C.sub.4 alkyl.
2 more elements
Dependencies are inferred from the claim text.