Benzimidazole derivatives. Part 5: Design and synthesis of new benzimidazole–arylpiperazine derivatives acting as mixed 5-HT1A/5-HT3 ligands
作者:María L. López-Rodríguez、Bellinda Benhamú、M José Morcillo、Ignacio Tejada、David Avila、Isabel Marco、Lucio Schiapparelli、Diana Frechilla、Joaquín Del Río
DOI:10.1016/j.bmc.2004.07.023
日期:2004.10
A series of new mixed benzimidazole-arylpiperazine derivatives were designed by incorporating in general structure III the pharmacophoric elements of 5-HT(1A) and 5-HT(3) receptors. Compounds 1-11 were synthesized and evaluated for binding affinity at both serotoninergic receptors, all of them exhibiting high 5-HT(3)R affinity (K(i)=10-62nM), and derivatives with an o-alkoxy group in the arylpiperazine