1,2-Dihydro-2-oxo-4-phenyl-3-quinolinecarbonitrile derivatives
AssigneeE. R. Squibb & Sons, Inc.
InventorsChester F. Turk, John Krapcho
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AssigneeE. R. Squibb & Sons, Inc.
InventorsChester F. Turk, John Krapcho
Estimating the term…
1,2-Dihydro-2-oxo-4-phenyl-3-quinolinecarbonitrile derivatives are provided having the structure ##STR1## wherein (CH.sub.2).sub.n represents a straight chain alkylene group containing 2 to 5 carbons, and R.sub.1 and R.sub.2 are the same or different and may be hydrogen or lower alkyl with the proviso that at least one of R.sub.1 and R.sub.2 is lower alkyl, or ##STR2## can be taken together to form a heterocyclic radical containing 5- or 6-members in the heterocyclic ring, such as pyrrolidino, piperidino or morpholino, and R.sub.3 and R.sub.4 may be the same or different and are hydrogen, lower alkyl, lower alkoxy, halogen or trifluoromethyl, and physiologically acceptable acid addition salts thereof. These compounds are useful as anti-inflammatory agents. A pharmaceutical composition containing the above compounds and a method of use are also provided.
A compound of the structure ##STR40## wherein (CH.sub.2).sub.n is a straight chain alkylene group containing 2 to 5 carbons in the normal chain, and R.sub.1 and R.sub.2 may be the same or different and are hydrogen or lower alkyl containing 1 to 8 carbons, with the proviso that at least one of R.sub.1 and R.sub.2 is lower alkyl, or ##STR41## may be taken together to form a pyrrolidino, piperidino or morpholino ring, and R.sub.3 and R.sub.4 are the same or different and are hydrogen, lower alkyl containing 1 to 8 carbons, lower alkoxy containing 1 to 8 carbons, bromine, chlorine, fluorine or trifluoromethyl, and physiologically acceptable acid-addition salts thereof.
Dependencies are inferred from the claim text.