Stereoselective Dynamic Cyclization of Allylic Azides: Synthesis of Tetralins, Chromanes, and Tetrahydroquinolines
作者:Matthew R. Porter、Rami M. Shaker、Cristian Calcanas、Joseph J. Topczewski
DOI:10.1021/jacs.7b11299
日期:2018.1.31
This report describes the stereoselectivesynthesis of 3-azido-tetralins, -chromanes, and -tetrahydroquinolines via a tandem allylic azide rearrangement/Friedel-Crafts alkylation. Exposure of allylic azides with a pendant trichloroacetimidate to catalytic quantities of AgSbF6 proved optimal for this transformation. This cascade successfully differentiates the equilibrating azide isomers, providing products
3-Amino-chromanes and Tetrahydroquinolines as Selective 5-HT<sub>2B</sub>, 5-HT<sub>7</sub>, or σ<sub>1</sub> Receptor Ligands
作者:Matthew R. Porter、Haiyan Xiao、Jing Wang、Sylvia B. Smith、Joseph J. Topczewski
DOI:10.1021/acsmedchemlett.9b00225
日期:2019.10.10
variety of G protein-coupled receptor (GPCR) ligands. This includes both endogenous neurotransmitters and active pharmaceutical agents. More than 20 structurally unique heterocyclic phenethylamine derivatives were broadly evaluated for GPCR affinity. Selective ligands for the 5-HT2B, 5-HT7, and σ1 receptors were identified, each with low nanomolar binding affinities. The σ1 receptor affinity was supported
Novel 5-HT 7 R antagonists, arylsulfonamide derivatives of (aryloxy)propyl piperidines: Add-on effect to the antidepressant activity of SSRI and DRI, and pro-cognitive profile
A novel series of arylsulfonamide derivatives of (aryloxy)propyl piperidines was designed to obtain potent 5-HT7R antagonists. Among the compounds evaluated herein, 3-chloro-N-1-[3-(1,1-biphenyl-2-yloxy)2-hydroxypropyl]piperidin-4-yl}benzenesulfonamide (25) exhibited antagonistic properties at 5-HT7R and showed selectivity over selected serotoninergic and dopaminergic receptors, as well as over serotonin