New Serotonin 5-HT1A Receptor Agonists with Neuroprotective Effect against Ischemic Cell Damage
摘要:
We report the synthesis of new compounds 4 35 based on structural modifications of different moieties of previously described lead UCM-2550. The new nonpiperazine derivatives, representing second-generation agonists, were assessed for binding affinity, selectivity, and functional activity at the 5-HT1A receptor (5-HT1AR). Computational beta(2)-based homology models of the ligand receptor complexes were used to explain the observed structure affinity relationships. Selected candidates were also evaluated for their potential in vitro and in vivo neuroprotective properties. Interestingly, compound 26 (2-{6-[(3,4:-dihydro-2H-chromen-2-ylmethyl)amino]hexyl}-tetrahydro-1H-pyrrolo[1,2-c]imidazole-1,3(2H)-dione) has been characterized as a high-affinity and potent 5-HT1AR agonist (K-i, = 5.9 nM, EC50 = 21.8 nM) and exhibits neuroprotective effect in neurotoxicity assays in primary cell cultures from rat hippocampus and in the MCAO model of focal cerebral ischemia in rats.
Piperazinyl derivatives containing a 3-alkylene-2,4-thiazolidinedione heterocyclic component with relatively selective psychotropic properties are disclosed. The compound 3-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-2,4-thiazolidinedione which has selective anxiolytic activity constitutes a typical embodiment of the invention.
Benzisothiazole and benzisoxazole piperazine derivatives
申请人:Mead Johnson & Company
公开号:US04411901A1
公开(公告)日:1983-10-25
Disubstituted N,N-piperazinyl derivatives are disclosed wherein one substituent is benzisothiazol-3-yl or benzisoxazol-3-yl and the other is alkylene attached to heterocycles such as azaspiro[4.5]decanedione, dialkylglutarimide, thiazolidinedione and spirocyclopentylthiazolidinedione or butyrophenone-like groups. The compounds have psychotropic properties and 8-[4-[4-(1,2-benzisothiazol-3-yl)-1-piperazinyl]butyl]-8-azaspior[4.5]deca ne-7,9-dione is a typical embodiment having selective antipsychotic activity.
Atypical antipsychotic agents: patterns of activity in a series of 3-substituted 2-pyridinyl-1-piperazine derivatives
作者:James S. New、Joseph P. Yevich、Davis L. Temple、Kimberly B. New、Sharon M. Gross、R. Francis Schlemmer、Michael S. Eison、Duncan P. Taylor、Leslie A. Riblet
DOI:10.1021/jm00398a021
日期:1988.3
A series of 3-substituted 2-pyridinyl-1-piperazine derivatives have been appended to cyclic imide groups and evaluated for their potential antipsychotic activity. The dopamine receptor affinities of these target molecules, as well as their ability to block apomorphine-induced stereotypy or reverse neuroleptic-induced catalepsy, was dependent on the lipophilic and electronic characteristics of the substituent situated on the pyridine ring. Groups with + omega and - phi values were most consistent with the desired biological profile of the target molecules, the cyano moiety being the optimum choice. Evaluation of compound 12 in a monkey model of amphetamine psychosis, and the regional selectivity it expresses for the A10 dopaminergic cell bodies in electrophysiological experiments, suggest this compound would be an atypical antipsychotic agent with few side effects.
TEMPLE, D. L.;YEAGER, R. E.
作者:TEMPLE, D. L.、YEAGER, R. E.
DOI:——
日期:——
NEW, JAMES S.;YEVICH, JOSEPH P.;TEMPLE, DAVIS L. , JR.;NEW, KIMBERLY B.;G+, J. MED. CHEM., 31,(1988) N 3, 618-624
作者:NEW, JAMES S.、YEVICH, JOSEPH P.、TEMPLE, DAVIS L. , JR.、NEW, KIMBERLY B.、G+