Design, synthesis, and structure–affinity relationship studies in NK1 receptor ligands based on azole-fused quinolinecarboxamide moieties
作者:Andrea Cappelli、Germano Giuliani、Maurizio Anzini、Daniela Riitano、Gianluca Giorgi、Salvatore Vomero
DOI:10.1016/j.bmc.2008.05.067
日期:2008.7
The substituent in position 2 of the quinoline nucleus of NK(1) receptor ligands 5 has been constrained into different five-membered heterocyclic moieties in order to obtain information on the binding site pocket interacting with this apparently critical portion of ligands 5. This structure-affinity relationship study led to the discovery of novel tricyclic NK(1) receptor ligands 6 showing affinity in the nanomolar range to the sub-micromolar one. The systematic structure variation suggests that electronic features of the tricyclic moiety play a role in modulating the interaction of these amide derivatives with their receptor. (c) 2008 Elsevier Ltd. All rights reserved.