Identification of novel and orally active spiroindoline NPY Y5 receptor antagonists
摘要:
A series of spiroindoline-3,40-piperidine derivatives were synthesized and evaluated for their binding affinities and antagonistic activities at Y5 receptors. Potent Y5 antagonists were tested for their oral bioavailabilities and brain penetration in rats. Some of the antagonists showed good oral bioavailability and/ or good brain penetration. In particular, compound 6e was orally bioavailable and brain penetrant, and oral administration of 6e inhibited bPP-induced food intake in rats with a minimum effective dose of 10 mg/ kg. (C) 2009 Published by Elsevier Ltd.
Hydroarylation of Arenes via Reductive Radical-Polar Crossover
作者:Autumn R. Flynn、Kelly A. McDaniel、Meredith E. Hughes、David B. Vogt、Nathan T. Jui
DOI:10.1021/jacs.0c03926
日期:2020.5.20
photocatalytic system for the dearomative hydroarylation of benzenederivatives has been developed. Using a combination of an organic photoredox catalyst and an amine reductant, this process operates through a reductive radical-polar crossover mechanism where aryl halide reduction triggers a regioselective radical cyclization event, followed by anion formation and quenching to produce a range of complex spirocyclic
Compounds of general structural formula I such as that shown in structural formula II
1
are selective NPY Y5 receptor antagonists, useful in the treatment of obesity and the complications associated therewith.