Synthesis and in vitro binding studies of substituted piperidine naphthamides. Part I: Influence of the substitution on the basic nitrogen and the position of the amide on the affinity for D-2L, D-4.2, and 5-HT2A receptors
[en] A series of 1- and 2-naphthamides has been prepared and tested for in vitro binding to D-2L, D-4.2, and 5-HT2A receptors. Different compounds display selectivity for D-4.2 and 5-HT2A receptors versus D-2L receptors. N-(1-Arylalkyl-piperidin-4-yl) carboxamides have higher affinities than the corresponding N-(4-arylalkylamino-piperidin-1-yl) carboxamide analogues. A benzyl moiety in position 1 of the piperidine in the 2-naphthamide series (2) appears to be the best choice for a favorable interaction with D-4.2 and 5-HT2A receptors. Increasing the linker length between the phenyl ring and the basic nitrogen led to a decreased affinity for these receptors. In the 1-naphthamide series, the most potent D-4.2 ligand (7) possesses a phenylpropyl moiety while its affinity for 5-HT2A receptors is strongly reduced. All compounds with significant affinity for D-4.2 and 5-HT2A receptors were antagonists. (c) 2007 Elsevier Ltd. All rights reserved.
Liégeois, Jean-François ; Université de Liège - ULiège > Département de pharmacie > Chimie pharmaceutique
Language :
English
Title :
Synthesis and in vitro binding studies of substituted piperidine naphthamides. Part I: Influence of the substitution on the basic nitrogen and the position of the amide on the affinity for D-2L, D-4.2, and 5-HT2A receptors
Publication date :
15 March 2007
Journal title :
Bioorganic and Medicinal Chemistry Letters
ISSN :
0960-894X
eISSN :
1464-3405
Publisher :
Pergamon-Elsevier Science Ltd, Oxford, United Kingdom
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