Synthesis and Biological Evaluation of a Series of 6,7-dimethoxy-1-(3,4- dimethoxybenzyl)-2-substituted Tetrahydroisoquinoline Derivatives
作者:Zhi-hong Zou、Xiao-bu Lan、Chun-lei Tang、Xiao-yun Zhu、Bao-min Liu、Hai Qian、Wen-long Huang、Yun-man Li
DOI:10.2174/157340612801216337
日期:2012.6.1
Multidrug resistance in cancer is a major cause of failure in cancer chemotherapy. In search of new compounds
with strong reversal activity and simple molecular structure, we have synthesized a series of compounds in which different
substituents were linked to the 2-position of the 6,7-dimethoxy-1-(3,4-dimethoxybenzyl)- tetrahydroisoquinoline system.
Compounds were analyzed for their cytotoxicity by MTT in K562 cell line in vitro, all of the derivatives exhibited
little cytotoxic activity. In the meantime, these compounds were evaluated by MTT in K562/A02 cell line in vitro, 6e, 6h
and 7c exhibited similar or more potent activities than verapamil with the IC50 values at 0.66, 0.65 and 0.96μM, and with
the ratio factor of 24.13, 24.50 and 16.59, respectively.
癌症的多药耐药性是癌症化疗失败的主要原因。为了寻找具有强逆转活性且分子结构简单的新化合物,我们合成了一系列化合物,在这些化合物中,6,7-二甲氧基-1-(3,4-二甲氧基苄基)-四氢异喹啉体系的 2 位上连接了不同的取代基。 通过 MTT 对 K562 细胞株进行体外细胞毒性分析,所有衍生物都表现出微弱的细胞毒性活性。同时,这些化合物在 K562/A02 细胞系中进行了 MTT 体外评估,6e、6h 和 7c 表现出与维拉帕米相似或更强的活性,IC50 值分别为 0.66、0.65 和 0.96μM,比值分别为 24.13、24.50 和 16.59。