Synthesis of AntiproliferativeCephalotaxus Esters and Their Evaluation against Several Human Hematopoietic and Solid Tumor Cell Lines: Uncovering Differential Susceptibilities to Multidrug Resistance
作者:Joseph D. Eckelbarger、Jeremy T. Wilmot、Matthew T. Epperson、Chandar S. Thakur、David Shum、Christophe Antczak、Leonid Tarassishin、Hakim Djaballah、David Y. Gin
DOI:10.1002/chem.200701998
日期:2008.5.9
isolated from the Cephalotaxus genus. Convergent syntheses of these four natural products are described, each involving novel synthetic methods and strategies. These syntheses enabled evaluation of several advanced natural and non-natural compounds against an array of human hematopoietic and solid tumor cells. Potent cytotoxicity was observed in several cell lines previously not challenged with these
据报道,脱氧三尖杉酯碱 (2)、高三尖杉酯碱 (3)、高脱氧三尖杉酯碱 (4) 和脱水三尖杉酯碱 (5) 是从三尖杉属分离的抗白血病生物碱中最有效的成员。描述了这四种天然产物的收敛合成,每一种都涉及新的合成方法和策略。这些合成使得能够针对一系列人类造血和实体肿瘤细胞评估几种先进的天然和非天然化合物。在先前未用这些生物碱攻击的几种细胞系中观察到强细胞毒性。该生物碱家族内酯链结构的变化赋予了针对长春新碱抗性 HL-60/RV+ 的不同活性谱,为这些天然产物的分子设计以对抗多药耐药性提供了新的途径。