[EN] HETEROTRICYCLIC AMIDE DERIVATIVES AS NEUROKININ-l (NKl) RECEPTOR LIGANDS [FR] DERIVES D'AMIDE HETEROTRICYCLIQUES EN TANT QUE LIGANDS DU RECEPTEUR DE NEUROKININE-1 (NK1)
[EN] HETEROTRICYCLIC AMIDE DERIVATIVES AS NEUROKININ-l (NKl) RECEPTOR LIGANDS [FR] DERIVES D'AMIDE HETEROTRICYCLIQUES EN TANT QUE LIGANDS DU RECEPTEUR DE NEUROKININE-1 (NK1)
Electrocatalytic Intermolecular C(sp<sup>3</sup>)–H/N–H Coupling of Methyl <i>N</i>-Heteroaromatics with Amines and Amino Acids: Access to Imidazo-Fused <i>N</i>-Heterocycles
作者:Peng Qian、Zicong Yan、Zhenghong Zhou、Kangfei Hu、Jiawei Wang、Zhibin Li、Zhenggen Zha、Zhiyong Wang
DOI:10.1021/acs.orglett.8b02578
日期:2018.10.19
An efficient NH4I-mediated intermolecular annulation of methyl N-heteroaromatics with amines/amino acids was developed by virtue of anodic oxidation, providing a variety of functionalized imidazo-fused N-heterocycles with good to excellent yields. The practicality of this protocol was demonstrated by the readily available starting materials, broad substrate scope, water tolerance, scalability, and
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.