The computer-aided discovery of novel family of the 5-HT6 serotonin receptor ligands among derivatives of 4-benzyl-1,3,5-triazine.

Abstract:

:The work describes a discovery of new chemical family of potent ligands for the 5-HT6 serotonin receptors. During the search for new histamine H4 receptor antagonists among 1,3,5-triazine derivatives, compound 2 (4-benzyl-6-(4-methylpiperazin-1-yl)-1,3,5-triazin-2-amine) was found. Compound 2, weakly active for the H4 receptor but fitted in 3/4 of pharmacophore features of the 5-HT6R ligand, occurred to be a moderate 5-HT6R agent, useful as a lead structure for further modifications. A series of new derivatives (3-19) of the lead 2 was synthesized, evaluated in the radioligand binding assay (RBA) and explored in comprehensive molecular modelling, including both pharmacophore- and structure-based approaches with docking to the homology model of 5-HT6R. The most active compounds displayed a potent affinity for the 5-HT6R in the nanomolar range (Ki = 20-30 nM), some of them (4, 11 and 19) were tested in the rat forced swim test that revealed their antidepressant-like effect. SAR-analysis on the basis of both, RBA and docking results, indicated that action on the receptor is related to the hydrophobicity and the size of aromatic moiety substituted by a methylene linker at the position 4 of 1,3,5-triazine.

journal_name

Eur J Med Chem

authors

Łażewska D,Kurczab R,Więcek M,Kamińska K,Satała G,Jastrzębska-Więsek M,Partyka A,Bojarski AJ,Wesołowska A,Kieć-Kononowicz K,Handzlik J

doi

10.1016/j.ejmech.2017.04.033

subject

Has Abstract

pub_date

2017-07-28 00:00:00

pages

117-124

eissn

0223-5234

issn

1768-3254

pii

S0223-5234(17)30290-8

journal_volume

135

pub_type

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