A novel class of "GABAergic" agents: 1-aryl-3-(aminoalkylidene)oxindoles
摘要:
Antagonism of mercaptopropionic acid (MPA) induced convulsions, reflecting a GABAergic mechanism, was observed in a series of 1-aryl-3-(aminoalkylidene)oxindoles. Optimal MPA antagonism was associated with 3-halo, 3-alkyl, and/or 4-alkoxy substituents in the pendant aryl ring and with (dimethylamino)methylene, 1-(dimethylamino)-ethylidene and N-methyl-2-pyrrolidinylidene side chains. The precise mechanism of action of these agents is unclear at this time; however, they are not GABA mimics and they do not affect GABA levels. Like other GABAergic agents, these compounds are potent enhancers of benzodiazepine binding and they antagonize cyclic GMP elevations induced by isoniazid. Compounds from this series may therefore have potential therapeutic utility as anticonvulsants or anxiolytics.
A novel class of "GABAergic" agents: 1-aryl-3-(aminoalkylidene)oxindoles
摘要:
Antagonism of mercaptopropionic acid (MPA) induced convulsions, reflecting a GABAergic mechanism, was observed in a series of 1-aryl-3-(aminoalkylidene)oxindoles. Optimal MPA antagonism was associated with 3-halo, 3-alkyl, and/or 4-alkoxy substituents in the pendant aryl ring and with (dimethylamino)methylene, 1-(dimethylamino)-ethylidene and N-methyl-2-pyrrolidinylidene side chains. The precise mechanism of action of these agents is unclear at this time; however, they are not GABA mimics and they do not affect GABA levels. Like other GABAergic agents, these compounds are potent enhancers of benzodiazepine binding and they antagonize cyclic GMP elevations induced by isoniazid. Compounds from this series may therefore have potential therapeutic utility as anticonvulsants or anxiolytics.
Design, synthesis and evaluation of 3-methylene-substituted indolinones as antimalarials
作者:S. Praveen Kumar、Jiri Gut、Rita C. Guedes、Philip J. Rosenthal、Maria M.M. Santos、Rui Moreira
DOI:10.1016/j.ejmech.2011.01.008
日期:2011.3
The design, synthesis and evaluation of 3-methylene-substituted indolinones as falcipain inhibitors and antiplasmodial agents are described. These compounds react readily with thiols via an addition-elimination mechanism, indicating their potential as cysteineproteaseinhibitors. Several indolinones containing a Leu-i-amyl recognition moiety were found to be moderate inhibitors of the Plasmodium falciparum
Certain substituted 1-phenyl-3-(aminoalkylidene)-2(1H,3H)-indolones are highly potent gabaergic agents, valuable in the treatment of individuals suffering from schizophrenia or reversing the side effects of a previously or concurrently administered neuroleptic agent; or in the treatment of epilepsy. A wider class of substituted 1-phenyl-3-(aminoalkylidene)-2(1H,3H)-indolones, together with 1-phenyl-3-(2-pyrrolidinylidene)-2(1H,3H)-indolones, and homologs thereof, are valuable in the treatment of anxiety.