Further SAR study on 11-O-substituted aporphine analogues: Identification of highly potent dopamine D3 receptor ligands
摘要:
A series of new aporphine analogues (aporlogues) were prepared from appropriate aporphine precursors and arylpiperazines using the Click reaction protocol. These compounds displayed good to high affinity at the D-3 receptor, low or no affinity at the D-1 and D-2 receptors. Compounds 7f and 11c stood out as the most potent at the D-3 receptor among our newly synthesized aporlogues with K-i values of 2.67 and 1.14 nM, respectively. Further assay at the 5-HT1A receptor revealed that aporlogues 7f and 11c also showed high affinity at this receptor with K-i values of 9.68 and 7.59 nM, respectively. They were 3.6- and 6.6-fold more potent at the D-3 over 5-HT1A receptors. Such D-3/5-HT1A dual property of these compounds may be useful in the treatment of several brain disorders. (C) 2011 Elsevier Ltd. All rights reserved.
The limitations of established serotonin (5-hydroxytryptamine, 5-HT) and norepinephrine (NE) reuptake inhibitors necessitate the development of safer and more effective therapeutic agents. Based on the structures of 4-benzylpiperidine carboxamides and trazodone, arylpiperazine–benzylpiperidines with chemical scaffolds different from those of marketed drugs were designed, synthesized, and evaluated
Synthesis, 3D-QSAR, and Structural Modeling of Benzolactam Derivatives with Binding Affinity for the D2 and D3 Receptors
作者:Laura López、Jana Selent、Raquel Ortega、Christian F. Masaguer、Eduardo Domínguez、Filipe Areias、José Brea、María Isabel Loza、Ferran Sanz、Manuel Pastor
DOI:10.1002/cmdc.201000101
日期:——
series of 37 benzolactamderivatives were synthesized, and their respective affinities for the dopamine D2 and D3receptors evaluated. The relationships between structures and bindingaffinities were investigated using both ligand‐based (3D‐QSAR) and receptor‐based methods. The results revealed the importance of diverse structural features in explaining the differences in the observed affinities, such as
Synthesis, binding affinity and SAR of new benzolactam derivatives as dopamine D3 receptor ligands
作者:Raquel Ortega、Enrique Raviña、Christian F. Masaguer、Filipe Areias、José Brea、María I. Loza、Laura López、Jana Selent、Manuel Pastor、Ferran Sanz
DOI:10.1016/j.bmcl.2009.01.067
日期:2009.3
series of new benzolactamderivatives was synthesized and the derivatives were evaluated for their affinities at the dopamine D1, D2, and D3receptors. Some of these compounds showed high D2 and/or D3affinity and selectivity over the D1 receptor. The SAR study of these compounds revealed structural characteristics that decisively influenced their D2 and D3affinities. Structuralmodels of the complexes