Anti-trypanosomatid benzofuroxans and deoxygenated analogues: Synthesis using polymer-supported triphenylphosphine, biological evaluation and mechanism of action studies
作者:Diego Castro、Lucia Boiani、Diego Benitez、Paola Hernández、Alicia Merlino、Carmen Gil、Claudio Olea-Azar、Mercedes González、Hugo Cerecetto、Williams Porcal
DOI:10.1016/j.ejmech.2009.09.009
日期:2009.12
showed low micromolar IC50 values. The synthetic route to access to these derivatives was an efficient Wittig reaction performed in mild conditions with polymer-supported triphenylphosphine (PS-TPP). Additionally, the benzofurozan analogues, deoxygenated benzofuroxans, were prepared using PS-TPP as reductive reagent in excellent yields. The trypanosomicidal and leishmanocidal activities of the benzofuroxan
对抗克鲁氏锥虫和利什曼原虫(Leishmania spp。)的抗锥虫病药物,开发了杂合的乙烯基硫基,乙烯基亚硫酰基,乙烯基磺酰基和乙烯基酮基-苯并呋喃,显示出低摩尔浓度的IC 50价值观。获得这些衍生物的合成途径是在温和条件下用聚合物支撑的三苯膦(PS-TPP)进行的有效Wittig反应。另外,使用PS-TPP作为还原剂以优异的收率制备了苯并呋喃类类似物脱氧的苯并呋喃类。测量了苯并呋喃聚糖衍生物的锥虫杀真菌和利什曼杀虫活性,并研究了其作用机理的某些方面。从这个意义上说,研究了线粒体脱氢酶活性的抑制,寄生虫体内自由基的产生和克鲁帕汀的抑制,作为抗锥虫病鉴定化合物的生物学靶标。锥虫杀虫活性可能是寄生虫线粒体功能干扰和向寄生虫产生氧化应激的结果。