Synthesis and biological evaluation of 2-aryliminopyrrolidines as selective ligands for I1 imidazoline receptors: discovery of new sympatho-inhibitory hypotensive agents with potential beneficial effects in metabolic syndrome.
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| Abstract |
New 2-aryliminopyrrolidines (1-18) were synthesized and tested for their binding properties on I1 imidazoline receptors vs α2-adrenergic receptors and their blood pressure effects after both systemic and intracerebral administrations. The purposes of this study were: (i) to analyze structure-activity and affinity relationships on I1 imdazoline receptors and (ii) to propose some leader compounds for the development of new sympatho-inhibitory drugs with potential applications in hypertension and/or metabolic syndrome, i.e., a cluster of cardiovascular (hypertension) and metabolic disorders. Our study highlights decisive arguments of SAR concerning both the affinity for I1Rs and the hypotensive activity of 2-aryliminopyrrolidines. Binding assays showed high affinity and selectivity of some compounds for I1 imidazoline receptors over α2-adreergic receptors. Compound 13 (laboratory reference LNP599; Ki = 3.2 nM on I1imidazoline receptors) is the prototype for the development of new centrally acting agents targeting specifically I1imidazoline receptors to be used in the management of hypertension and/or metabolic syndrome.
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| Authors | Vincent Gasparik, Hugues Greney, Stephan Schann, Josiane Feldman, Lyne Fellmann, Jean-Daniel Ehrhardt, Pascal Bousquet |
| Journal | Journal of medicinal chemistry (J Med Chem) Vol. 58 Issue 2 Pg. 878-87 (Jan 22 2015) ISSN: 1520-4804 [Electronic] United States |
| PMID | 25521963 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't) |
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