3-amino-5-methyl-1H-pyrazole-4-carboxylic acids and esters thereof as
申请人:A. H. Robins Company, Incorporated
公开号:US04826866A1
公开(公告)日:1989-05-02
A novel method of controlling epilepsy, muscle tension, muscular spasticity, and anxiety in living animal bodies by administering compounds of the formula: ##STR1## wherein: R.sup.1 is hydrogen, loweralkyl or a pharmaceutically acceptable cation; R.sup.2 and R.sup.3, same or different, are hydrogen, loweralkyl, aryl, cycloalkyl, loweralkenyl, 1-adamantyl, heterocyclicaminoalkyl, diloweralkylaminoloweralkyl, or R.sup.2 with R.sup.3 and adjacent nitrogen may form a heterocyclic ring structure; and the pharmaceutical acceptable acid salts, and tautomeric isomers thereof; and novel pharmaceutical compositions therefor are disclosed.
3-Amino-5-methyl-1H-pyrazole-4-carboxylic acids and esters thereof as
申请人:A. H. Robins Company, Incorporated
公开号:US04871737A1
公开(公告)日:1989-10-03
A novel method of controlling epilepsy, muscle tension, muscular spasticity, and anxiety in living animal bodies by administering compounds of the formula: ##STR1## wherein: R.sup.1 is hydrogen, loweralkyl or a pharmaceutically acceptable cation; R.sup.2 and R.sup.3, same or different, are hydrogen, loweralkyl, aryl, cycloalkyl, loweralkenyl, 1-adamantyl, heterocyclicaminoalkyl, diloweralkylaminoloweralkyl, or R.sup.2 with R.sup.3 and adjacent nitrogen may form a heterocyclic ring structure; and the pharmaceutical acceptable acid salts, and tautomeric isomers thereof; and novel pharmaceutical compositions therefor are disclosed.
3-amino-5-methyl-1H-pyrazole-4-carboxylic acids and esters thereof as anticonvulsants, muscle relaxants and anxiolytics
申请人:A.H. ROBINS COMPANY, INCORPORATED
公开号:EP0315433A2
公开(公告)日:1989-05-10
Pharmaceutical compositions which comprise a compound represented by the formula
where
R¹ represents a hydrogen atom, a lower alkyl group or a pharmaceutically acceptable cation;
R² and R³ independently represent a hydrogen atom, a lower alkyl group, an aryl group, a cycloalkyl group, a lower alkenyl group, a 1-adamantyl group, a heterocyclicaminoalkyl group, a diloweralkylaminoloweralkyl group, or R² together with R³ and the adjacent nitrogen atom may form a heterocyclic ring structure;
and/or a pharmaceutically acceptable acid salt thereof; the use of such compounds in medicine; and the use of such compounds in the preparation of anticonvulsant agents, muscle relaxants and anxiolytic agents, are disclosed.
The Reactions of 3-Unsubstituted Isoxazolium Salts with 1,2-Dinucleophiles. Synthesis of 4-Functionalized 3-Aminoisoxazoles and 3-Aminopyrazoles
作者:A. Alberola、L. F. Antolín、P. Cuadrado、A. M. González、M. A. Laguna、F. J. Pulido
DOI:10.1055/s-1988-27512
日期:——
The reaction of 3-unsubstituted isoxazolium salts with 1,2-dinucleophiles (hydroxylamine, hydrazine, methylhydrazine, phenylhydrazine, 4-nitrophenylhydrazine, semicarbazide) in boiling ethanol, affords 4-functionalized 3-alkylaminoisoxazoles and 3-alkylaminopyrazoles in high yields. The procedure is quite general, thus providing a new method for the synthesis of 3-aminoazoles with potential biological activity. Mechanistic pathways for these transformations are proposed.