作者:Wei Liu、Wenfang Dong、Xiangwei Liao、Zheng Yan、Baohe Guan、Nan Wang、Zhanzhu Liu
DOI:10.1016/j.bmcl.2011.01.025
日期:2011.3
(-)-Renieramycin G and fifteen C-22 analogs were prepared employing L-tyrosine as the chiral starting material. These analogs, along with (-)-renieramycin G itself, were evaluated in vitro for cytotoxicity against HCT-8, BEL-7402, A2780, MCF-7, A549, BGC-823, Ketr3, KB, Hela cells. The IC50 values of most of these analogs were at the level of mu M. Among these analogs, 2-thiophenecarboxylate ester derivative 17 exhibited potent cytotoxic activity against KB cell line with the IC50 of 20 nM. From this study, it could be concluded that the C-22 side chain played an important role in the cytotoxic potency and specificity of this class of (-)-renieramycin G derivatives. (C) 2011 Elsevier Ltd. All rights reserved.
(-)-银灰霉素 G 及其 15 个 C-22 类似物以 L-酪氨酸为手性起始材料制备。这些类似物(含 (-)-银灰霉素 G 本身)在体外对 HCT-8、BEL-7402、A2780、MCF-7、A549、BGC-823、Ketr3、KB、Hela 细胞进行了细胞毒性的评估。大部分类似物的 IC50 值达到微摩尔水平。在这些类似物中,2-噻吩甲酸酯衍生物 17 对 KB 细胞系表现出极强的细胞毒性活性,其 IC50 值为 20 nM。通过这项研究,可以得出的结论是,C-22 侧链在这一类 (-)-银灰霉素 G 衍生物的细胞毒性和特异性中起到了重要作用。 (C) 2011 Elsevier Ltd. 保留所有权利。