Structure−Activity Relationships and Molecular Modeling Analysis of Flavonoids Binding to the Benzodiazepine Site of the Rat Brain GABA<sub>A</sub> Receptor Complex
The affinities for the benzodiazepine binding site of the GABA(A) receptor of 21 flavonoids have been studied using [(3)H]flumazenil binding to rat cortical membranes in vitro. We show that flavonoids with high affinity for the benzodiazepinereceptor in vitro spanning the whole efficacy range from agonists (1q) to inverse agonists (1l) can be synthesized. The receptor binding properties of the flavonoids
HOGALE M. B.; DHORE N. P.; SHELAR A. R.; PAWAR P. K., ORIENT J. CHEM., 2,(1986) N 1, 55-57
作者:HOGALE M. B.、 DHORE N. P.、 SHELAR A. R.、 PAWAR P. K.
DOI:——
日期:——
HOGALE, M. B.;PAWAR, B. N.;NIKAM, B. P., J. INDIAN CHEM. SOC., 64,(1987) N 8, 486-487
作者:HOGALE, M. B.、PAWAR, B. N.、NIKAM, B. P.
DOI:——
日期:——
A new synthesis of flavones and pyranoflavone by intramolecular photochemical Wittig reaction in water
作者:Jhantu Das、Somnath Ghosh
DOI:10.1016/j.tetlet.2011.10.134
日期:2011.12
A newsyntheticapproach toward the synthesis of flavones and pyranoflavone has been developed by light induced intramolecularphotochemicalWittigreaction in water onto aryloxycarbonyl groups and suitably substituted phosphonium bromides sans any phase transfer catalyst or promoter.
Synthesis and Properties of Molecular Probes for the Rescue Site on Mutant Cystic Fibrosis Transmembrane Conductance Regulator
作者:Bashar Alkhouri、Robert A. Denning、Patrick Kim Chiaw、Paul D. W. Eckford、Wilson Yu、Canhui Li、Jovanka J. Bogojeski、Christine E. Bear、Russell D. Viirre
DOI:10.1021/jm201335c
日期:2011.12.22
Cystic fibrosis is a genetic disease caused by mutations in the gene for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. In vitro experiments have demonstrated that 4-methyl-2-(5-phenyl-1H-pyrazol-3-yl)phenol (VRT-532, 1) is able to partially restore the function of mutant CFTR proteins. To help elucidate the nature of the interactions between 1 and mutant CFTR, molecular probes based on the structure of 1 have been prepared. These include a photoreactive aryl azide derivative 11 and a fluorescent dansyl sulfonamide 15. Additionally, a method for hydrogen isotope exchange on 1 has been developed, which could be used for the incorporation of radioactive tritium. Using iodide efflux assays, the probe molecules have been demonstrated to modulate the activity of mutant CFTR in the same manner as 1. These probe molecules enable a number of biochemical experiments aimed at understanding how 1 rescues the function of mutant CFTR. This understanding can in turn aid in the design and development of more efficacious compounds which may serve as therapeutic agents in the treatment of cystic fibrosis.