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Synthesis and Evaluation of Aryl Substituted Propyl Piperazines for Potential Atypical Antipsychotic activity

Author(s):

Shalu Singh, Alka Bali* and Tania Peshin  

Abstract:


Background: Schizophrenia is a disorder with complex etiology with hyperdopaminergia as the main underlying cause. Atypical antipsychotics are the agents which do not give rise to significant extrapyramidal side effects and are more effective against negative symptoms of schizophrenia.

Introduction: A new series of chloro-substituted substituted aryloxypiperazine derivatives and their indole based derivatives was designed and evaluated for atypical antipsychotic activity based on established models for combined dopaminergic and serotonergic antagonism.

Method: The present series of compounds were designed based on 3D similarity studies, synthesized and evaluated for atypical antipsychotic activity in animal models for combined dopaminergic and serotonergic antagonism. The blood brain barrier penetration potential was assessed from theoretical log BB values computed through an online software program. Results: Theoretical ADME profiling of the designed compounds based on selected physicochemical parameters suggested an excellent compliance with Lipinski’s rules. The log BB values obtained for the compounds suggested a good potential for brain permeation. Indole substitution contributed towards an improved efficacy over aryloxy analogs. Lead compounds showed a potential for combined dopaminergic and serotonergic antagonism.

Conclusion: The 5-methoxy indole based compounds 16 and 17 were identified as the lead compounds displaying a potential atypical antipsychotic profile.

Keywords:

Dopamine antagonist, Computer-aided, Antiserotonergic, Log BB, 5-HT¬2, Head twitches assay, Mesh climbing

Affiliation:

University Institute of Pharmaceutical Sciences, UGC Center of Advanced Study, Panjab University, Chandigarh, 160014, University Institute of Pharmaceutical Sciences, UGC Center of Advanced Study, Panjab University, Chandigarh, 160014, University Institute of Pharmaceutical Sciences, UGC Center of Advanced Study, Panjab University, Chandigarh, 160014



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