Design, synthesis, and biological evaluation of callophycin A and analogues as potential chemopreventive and anticancer agents
作者:Li Shen、Eun-Jung Park、Tamara P. Kondratyuk、Daniela Guendisch、Laura Marler、John M. Pezzuto、Anthony D. Wright、Dianqing Sun
DOI:10.1016/j.bmc.2011.09.020
日期:2011.11
the red algae Callophycus oppositifolius and shown to mediate anticancer and cytotoxic effects. In our collaborative effort to identify potential chemopreventive and anticancer agents with enhanced potency and selectivity, we employed a tetrahydro-β-carboline-based template inspired by callophycin A for production of a chemical library. Utilizing a parallel synthetic approach, 50 various functionalized
Callophycin A 最初是从红藻Callophycus oppositifolius 中分离出来的并显示介导抗癌和细胞毒性作用。在我们共同努力确定具有增强效力和选择性的潜在化学预防和抗癌剂时,我们采用了一种受海藻素 A 启发的基于四氢-β-咔啉的模板来生产化学文库。利用平行合成方法,制备了 50 种功能化的四氢-β-咔啉衍生物,并评估了与癌症化学预防和癌症治疗相关的活性:诱导醌还原酶 1 (QR1) 和抑制芳香酶、一氧化氮 (NO) 产生、肿瘤坏死因子 (TNF)-α 诱导的 NFκB 活性和 MCF7 乳腺癌细胞增殖。生物学结果表明,正戊基脲S-异构体6a是 QR1 的最强诱导剂,在 50 μM 时的诱导比 (IR) 值为 4.9 [使活性加倍的浓度 (CD) = 3.8 μM],其相应的R-异构体6f的 IR 值为 4.3 (CD = 0.2微米)。具有 R 立体化学的氨基甲酸异丁酯衍生物3d显示出最有效的