Warner-lambert Company

Parke-davis Company

Ivan C Nordin

Robert W Fleming

Dietrich Schweiss

Sandra J Lobbestael

Donald E Butler

Yvon J L'Italien

Robert F Parcell

N-(2,6-Disubstitutedphenyl)-N'-3- and 4-pyridinyl ureas and pharmaceutically acceptable acid addition salts having anticonvulsant activity are described as well as a process for their manufacture, formulations containing the compounds and a method of treating epilepsy using the compounds in unit dosage form.

N-(2,6-disubstituted aromatic)-N'-pyridinyl ureas

Anticonvulsant N-(2,6-disubstituted aromatic)-n'-pyridinyl ureas

New 5-amino-N-(substitutedphenyl)-1,3-disubstituted-1H-pyrazole-4-carboxamides useful as anticonvulsant agents for treating warm-blooded animals are disclosed. Also disclosed are intermediates and methods for preparing the new compounds and methods for using the new compounds.

5-Amino-N-(3-chloro- 2-methyl-, or

4-Lower alkyl-3-phenoxypyridine-1-oxides, pharmacological agents possessing anticonvulsant properties, pharmaceutical compositions and methods of using said compositions are disclosed. These compounds are produced by reacting 4-lower alkyl-3-phenoxypyridines with an oxidizing agent.

4-Lower alkyl-3-phenoxypyridine-1-oxide and a method for its production

New 5-amino-N-(substituted phenyl)-1,3-disubstituted-1H-pyrazole-4-carboxamides useful as anticonvulsant agents for treating warm-blooded animals are disclosed. Also disclosed are intermediates and methods for preparing the new compounds and methods for using the new compounds.

Method for treating convulsions with pyrazole-4-carboxamide derivatives

A process for the preparation of cis-(.+-.)-3,4-dihydro-N,N,2-trimethyl-2H-1-benzopyran-3-amine (I), a known antidepressant, is disclosed. The process of the invention is a multi-step process starting with 2-methyl-2H-1-benzopyran (II), which involves the production of novel intermediates (2.alpha.,3.beta.,4.alpha.)-(.+-.)-3,4-dihydro-2-methyl-4-(methylamino)-2H -1-benzopyran-3-ol (IV) and its hydrogen sulfate ester (V) as well as (1a.alpha.,2.beta.,7b.alpha.)-(.+-.)-1,1a,2,7b-tetrahydro-1,2-dimethyl[1]b enzopyrano[3,4-b]azirine (VI) and cis-(.+-.)-3,4-dihydro-N,2-dimethyl-2H-1-benzopyran-3-amine (VII). In the final step of the process, compound VII is methylated to form compound I.

Process for the preparation of

N-(substituted-aminoalkyl)-2-oxo-1-pyrrolidineacetamides which are useful as pharmacological agents, especially cognition activators, are disclosed. They can be produced by reacting a 2-oxo-1-pyrrolidineacetate ester with an appropriate amine.

Growing community of inventors

Holland, MI, United States of America

Ivan C Nordin