Investigation of the antioxidant properties of some new 4-hydroxycoumarin derivatives
作者:S. Stanchev、V. Hadjimitova、T. Traykov、T. Boyanov、I. Manolov
DOI:10.1016/j.ejmech.2008.07.007
日期:2009.7
romen-3-yl)(4-hydroxyphenyl)methyl]-3-oxobutanoate (SS-14), 4-[1-(4-hydroxy-2-oxo-2H-chromen-3-yl)-2-(ethoxycarbonyl)-3-oxobutyl]benzoic acid (SS-17), ethyl 2-[(4-hydroxy-2-oxo-2H-chromen-3-yl)(3-nitrophenyl)methyl]-3-oxobutanoate (SS-21) and ethyl 2-[(3,4,5-trimethoxyphenyl)(4-hydroxy-2-oxo-2H-chromen-3-yl)methyl]-3-oxobutanoate (T-2). The synthesis of T-2 consists of two steps. First step was Knoevenagel
这项研究的目的是测量四种4-羟基香豆素衍生物的活性-之前已经描述了其中的三种,其中一种是新合成的。物质是2-[((4-羟基-2-氧代-2 H-铬-3-基)(4-羟苯基)甲基] -3-氧代丁酸乙酯(SS-14),4- [1-(4-羟基-2-氧代-2- ħ -色烯-3-基)-2-(乙氧羰基)-3-氧代丁基]苯甲酸(SS-17),乙基2 - [(4-羟基-2-氧代-2 H ^ -色烯-3-基)(3-硝基苯基)甲基] -3-氧代丁酸乙酯(SS-21)和乙基2 - [(3,4,5-三甲氧基苯基)(4-羟基-2-氧代-2 ħ -chromen- 3-基)甲基] -3-氧代丁酸酯(T-2)。T-2的合成包括两个步骤。第一步是3,4,5-三甲氧基苯甲醛与乙酰乙酸乙酯之间的Knoevenagel反应。2-(3,4,5-三甲氧基)-苯基亚甲基乙酰乙酸乙酯是产物。第二步是后者产物与4-羟基香豆素之间的迈克尔加成