Vinylogous carboxamides
AssigneeDr. Karl Thomae Gesellschaft mit beschranter Haftung
InventorsWolfhard Engel, Eckhart Bauer, Gunter Trummlitz, Peter Danneberg, Joachim Kahling
Life of this patent
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Abstract
Compounds of the formula ##STR1## wherein R.sub.1 is phenyl, halo- and/or methyl-substituted phenyl or pyridinyl; R.sub.2 is hydrogen, straight or branched alkyl of 1 to 4 carbon atoms, 2- or 3-hydroxy-(alkyl of 2 to 3 carbon atoms) or 2- or 3-dimethylamino-(alkyl of 2 to 3 carbon atoms); R.sub.3 is hydrogen or alkyl of 1 to 3 carbon atoms; and R.sub.4 is hydrogen, chlorine or methyl. The compounds are useful as anticonvulsants.
Claims8
A compound of the formula ##STR4## wherein R.sub.1 is phenyl, halo-substituted phenyl, methyl-substituted phenyl, halo- and methyl-substituted phenyl or pyridinyl;
- R.sub.2 is hydrogen, straight or branched alkyl of 1 to 4 carbon atoms, 2- or 3-hydroxy-(alkyl of 2 to 3 carbon atoms) or 2- or 3-dimethylamino-(alkyl of 2 to 3 carbon atoms);
- R.sub.3 is hydrogen or alkyl of 1 to 3 carbon atoms;
- and
- R.sub.4 is hydrogen, chlorine or methyl.
Dependencies are inferred from the claim text.