Efficient Synthesis of Nitroflavones by Cyclodehydrogenation of 2′-Hydroxychalcones and by the Baker-Venkataraman Method
摘要:
Several nitroflavone derivatives were synthesized by cyclodehydrogenation of 2'-hydroxychalcones and by the Baker-Venkataraman approach, starting from 2'-hydroxyacetophenones and benzoic acid derivatives. Nitroflavones synthesised by the first synthetic approach were obtained in better global yields than those obtained by the later method. The structures of all new compounds were elucidated by microanalyses, 1D and 2D NMR, IR, and mass spectroscopic measurements.
Use of nitroflavonoids for the treatment of anxiety
申请人:University of Strathclyde
公开号:US06080780A1
公开(公告)日:2000-06-27
Methods of treating anxiety with flavonoid compounds according to Formula (I) and dimers thereof, compounds of Formula (I) and dimers thereof, use of compounds of Formula (I) and pharmaceutical formulations comprising flavonoids of Formula (I) and dimers thereof. ##STR1##
Synthesis of halogenated/nitrated flavone derivatives and evaluation of their affinity for the central benzodiazepine receptor
作者:Mariel Marde、Juan Zinczuk、María I. Colombo、Cristina Wasowski、Haydee Viola、Claudia Wolfman、Jorge H. Medina、Edmundo A. Rúveda、Alejandro C. Paladini
DOI:10.1016/s0960-894x(97)00343-0
日期:1997.8
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.
6-Bromo-3′-nitroflavone, a new high affinity benzodiazepine receptor agonist recognizes two populations of cerebral cortical binding sites
作者:Haydee Viola、Mariel Marder、Claudia Wolfman、Cristina Wasowski、Jorge H. Medina、Alejandro C. Paladini
DOI:10.1016/s0960-894x(97)00020-6
日期:1997.2
The synthesis and biochemical characterization of 6-bromo-3'-nitroflavone (1) is presented. Compound 1 has higher affinity for cerebellar and cerebral cortical than for striatal, hippocampal, or spinal cord benzodiazepine receptors (BDZ-Rs). In the cerebra) cortex it recognizes two populations of binding sites (K(i)s 1.2 nM and 15.5 nM, respectively), and at doses of 0.01 to 0.3 mg/kg, ip produces anxiolytic effects in mice. (C) 1997, Elsevier Science Ltd.