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Eur J Med Chem. 2013 May;63:85-94. doi: 10.1016/j.ejmech.2013.01.044. Epub 2013 Feb 8.

Synthesis and structure-activity relationship studies in serotonin 5-HT(1A) receptor agonists based on fused pyrrolidone scaffolds.

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  • 1Dipartimento Farmaco Chimico Tecnologico and European Research Centre for Drug Discovery and Development, Università degli Studi di Siena, Via A. Moro, 53100 Siena, Italy. andrea.cappelli@unisi.it


A new class of serotonin 5-HT1A receptor ligands related to NAN-190, buspirone and aripiprazole has been designed using our potent 5-HT3 receptor ligands as templates. The designed pyrrolidone derivatives 10a-n were prepared by means of the straightforward chemistry consisting in the reaction of the appropriate γ-haloester derivatives with the suitable arylpiperazinylalkylamines. The nanomolar 5-HT1A receptor affinity and the agonist-like profile shown by fused pyrrolidone derivatives 10k,m stimulated the rationalization of the interaction with an homology model of the 5-HT1A receptor and the evaluation of their selectivity profiles and the pharmacokinetic properties. Interestingly, the results of the profiling assays suggested for close congeners 10k,m a significantly divergent binding pattern with compound 10m showing an appreciable selectivity for 5-HT1AR.

Copyright © 2013 Elsevier Masson SAS. All rights reserved.

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