Synthesis and Biochemical Evaluation of a Series of Aminoflavones as Potential Inhibitors of Protein-Tyrosine Kinases p56lck, EGFr, and p60v-src
摘要:
A series of nitroflavones, 8a-p, and their corresponding aminoflavone hydrochloride salts, 10a-p, was synthesized. The preparation of nitroflavones 8b-i,o,p began with commercially available o-hydroxyacetophenones 2b-f which were converted to o-hydroxynitroacetophenones 3a-h via a variety of nitration methods, followed by condensation with nitrobenzoyl chlorides and cyclization under acidic condition. The nitroflavones 8aj-n were prepared by nitration of the corresponding flavones 7a-e. These new compounds were evaluated for their abilities to inhibit the in. vitro protein-tyrosine kinase activities of p56(1ck), EGFr, and p60(v-src), and all of the active compounds were amino-substituted flavones. None of the nitroflavones inhibited the enzymes. The most active substance in this series against p56(lck) was compound 10j, which had an IC50 of is mu M. When tested versus EGFr, compounds 10a,m displayed IC50's of 8.7 and 7.8 mu M, respectively. Against p60(v-src), 10a,m showed IC50 values of 28.8 and 38.4 mu M, respectively.
Synthesis of halogenated/nitrated flavone derivatives and evaluation of their affinity for the central benzodiazepine receptor
摘要:
A series of halogenated/nitrated flavone compounds were synthesized. Some of the products were found to be potent central benzodiazepine receptor (BDZ-R) ligands. The structure-activity relationships (SAR) analysis of the new synthetic compounds, together with that of others already described, indicates that substitutions at position 6 or 6 and 3' in the flavone nucleus are the only ones that give rise to high affinity BDZ-R ligands. (C) 1997 Elsevier Science Ltd.
Reichel; Hempel, Justus Liebigs Annalen der Chemie, 1959, vol. 625, p. 184,193
作者:Reichel、Hempel
DOI:——
日期:——
A two step synthesis of BzR/GABAergic active flavones via a Wacker-related oxidation
作者:Michael Lorenz、M. Shahjahan Kabir、James M. Cook
DOI:10.1016/j.tetlet.2009.12.107
日期:2010.2
A general route for the synthesis of biologically important flavones is reported via a two step sequence employing a catalytic Wacker-Cook oxidation(4b) as the key step. (C) 2009 Elsevier Ltd. All rights reserved.
USE OF NITROFLAVONOIDS FOR THE TREATMENT OF ANXIETY