Antioxidants have potential for the treatment of stroke and neurodegeneration, and chimeric compounds that combine a flavon-3-ol head group related to myricetin and a lipophilic decyl tail are known to protect membranes from oxidative damage at least as well as vitamin E. New flavon-3-ols that are highly hydroxylated in the B ring in ways not found in natural flavon-3-ols and bearing a lipophilic decyl tail have been prepared from trimethoxy- and tetramethoxybenzoic acids accessed by lithiation–carboxylation reactions. Direct enolate acylation was preferred over Baker–Venkataraman rearrangement when there were methoxy groups at both the 2- and the 6-position of the benzoic acid derivatives.
抗氧化剂在治疗中风和神经退行性疾病方面具有潜在作用,已知将含有与杨梅素相关的黄酮-3-醇头基团与亲脂性癸基尾链结合的嵌合化合物至少与维生素E一样能保护膜免受氧化损伤。已经从通过 lithiation-carboxylation 反应获得的间三甲氧基苯甲酸和均四甲氧基苯甲酸合成了新的黄酮-3-醇,这些新的黄酮-3-醇在B环上高度羟基化,以自然黄酮-3-醇中未发现的方式,并带有亲脂性癸基尾链。当苯甲酸衍生物的2-和6-位置上都有甲氧基时,首选直接烯醇酯化,而不是Baker-Venkataraman重排。