3-Isoxazoyl derivatives endowed with anticonvulsant activity, procedure
申请人:Novapharme
公开号:US05258397A1
公开(公告)日:1993-11-02
The object of the invention is heterocyclic compounds of general formula (I) endowed with anticonvulsant activity: ##STR1## in which Y is selected from --O--, --S-- and ##STR2## R.sub.4 being H or optionally substituted alkyl, acyl or benzyl, Z is selected from the groups --CO--N(R.sub.6)--,--NH--CO--CH.dbd.CH-- and --N(R.sub.6)--CO, R.sub.6 being H or alkyl; R.sub.1 is C.sub.1 -C.sub.4 alkyl; R.sub.2 is C.sub.1 -C.sub.4 alkyl or halogen; R.sub.3 represents optionally substituted C.sub.1 -C.sub.4 alkyl, alkoxy or hydroxyalkyl, or C.sub.2 -C.sub.7 alkanoyl.
We prepared a series of N-aryl isoxazolecarboxamide, N-isoxazolylbenzamide compounds and derivatives and studied their anticonvulsant action in MES and MMS tests. Some of these reveal considerable activity, especially with respect to MES test. The disubstitution in the 2.6-position on the phenyl ring by two methyl groups would appear to be of primary importance for the activity. The amide bridge between the phenyl and isoxazolic rings, whether of the anilide or benzamide type, seems to show similar anticonvulsant behavior. We have selected the derivatives 8 (N-(2.6-dimethylphenyl)-5-methyl-3-isoxazolecarboxamide, 12 (N-(2,6-dimethylphenyl)-5-hydroxymethyl-3-isoxazolecarboxamide) and 51 (N-(5-methyl-3-isoxazolyl)-2.6-dimethylbenzamide) which are presently being studied in more extended pharmacological tests.
US5258397A
申请人:——
公开号:US5258397A
公开(公告)日:1993-11-02
US5464860A
申请人:——
公开号:US5464860A
公开(公告)日:1995-11-07
N(pyrazol-3-yl) benzamides and pharmaceutical compositions
申请人:Novapharme
公开号:US05464860A1
公开(公告)日:1995-11-07
The invention relates to a compound useful for treating epilepsy selected from the compounds of the general formula: ##STR1## in which R.sub.1 is C.sub.1 -C.sub.4 alkyl, R.sub.2 is C.sub.1 -C.sub.4 alkyl, R.sub.3 is selected from hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy and C.sub.1 -C.sub.4 hydroxyalkyl, and R.sub.4 is selected from hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.7 alkanoyl and C.sub.1 -C.sub.4 hydroxyalkyl.