Methoxycamalexins and related compounds: Syntheses, antifungal activity and inhibition of brassinin oxidase
作者:M. Soledade C. Pedras、Abbas Abdoli
DOI:10.1016/j.bmc.2018.07.030
日期:2018.8
reaction; however, this method did not work for the syntheses of 4,6-dimethoxy and 5,7-dimethoxycamalexins due to the lower reactivities of the corresponding indole-3-thiocarboxamides. The antifungal activity and brassinin oxidase inhibitory activity of all methoxycamalexins and ten camalexin related compounds were investigated. Among the 20 compounds evaluated, monomethoxycamalexins were stronger antifungals
植物抗毒素xin camalexin是一种竞争性的油菜花青素氧化酶抑制剂,它是一种对植物油菜青素黄铜素进行解毒的酶,由具有重要经济意义的植物病原体产生。因此,camalexin支架指导了花青素解毒抑制剂的设计。为了进一步了解camalexin相关化合物的结构-活性关系,进行了单甲氧基和二甲氧基camalexins的合成。使用Ayer's方法由相应的甲氧基吲哚制备四种单甲氧基Camalexins以及4,6-二甲氧基和5,7-二甲氧基Camalexin。使用Hantzsch反应由相应的二甲氧基吲哚-3-硫代羧酰胺制备二甲氧基衍生物。但是,该方法不适用于4,6-二甲氧基和5的合成 由于相应的吲哚-3-硫代羧酰胺的反应性较低,因此存在7-二甲氧基Camalexins。研究了所有甲氧基camalexins和十种camalexin相关化合物的抗真菌活性和brastinin氧化酶抑制活性。在所评估的20