Total Synthesis and Cytotoxic Activity of 5′-Hydroxyzearalenone and 5′β-Hydroxyzearalenone
作者:Aticha Thiraporn、Vatcharin Rukachaisirikul、Panata Iawsipo、Tatiyar Somwang、Kwanruthai Tadpetch
DOI:10.1002/ejoc.201701272
日期:2017.12.22
E-selective ring-closing metathesis (RCM). Our synthesis also highlights the utility of the acetal protecting group of the resorcylate moiety and its compatibility in RCM for synthesis of 14-membered RALs. Cytotoxic activity of both synthetic compounds against seven human cancer cell lines was evaluated. 5′-Hydroxyzearalenone exhibits more potent cytotoxic activity against most of cancer cell lines tested
5'-羟基玉米赤霉烯酮和 5'-β-羟基玉米赤霉烯酮是 14 元 β-间苯二酸内酯 (RAL) 天然产物的高效收敛合成,已在 19 个最长的线性和 29 个总步骤中从市售的 5-己烯- 1-醇和2-(3,5-二甲氧基苯基)乙酸甲酯。我们合成的主要特征包括 Jacobsen 水解动力学拆分、Mitsunobu 酯化和 E 选择性闭环复分解 (RCM)。我们的合成还强调了再苯甲酸酯部分的缩醛保护基团的效用及其在 RCM 中用于合成 14 元 RAL 的兼容性。评估了两种合成化合物对七种人类癌细胞系的细胞毒活性。5'-羟基玉米赤霉烯酮对大多数测试的癌细胞系表现出比其差向异构体更有效的细胞毒活性,5'β-羟基玉米赤霉烯酮。两种化合物对 C33A 宫颈癌细胞系均显示出显着的细胞毒活性,IC50 值分别为 21.33 ± 6.43 μM 和 16.00 ± 12.17 μM。