A series of 2-arylamino-5-(indolyl)-1,3,4-thiadiazoles as potent cytotoxic agents
摘要:
A series of 2-arylamino-5-(indolyl)-1,3,4-thiadiazoles 6a-v were prepared and studied for their anticancer activity against selected human cancer cell lines. The reaction of indolylhydrazides 3a-h with a variety of aryl isothiocyanates 4 afforded the key intermediate thiosemicarbazides 5a-v, which upon treatment with acetyl chloride produced the 2-arylamino-5-(indolyl)-1,3,4-thiadiazoles 6a-v in good yields. Most of the synthesized compounds showed selective cytotoxicity towards human breast cancer cell line (MDA-MB-231). Of the synthesized 2-arylamino-5-(indolyl)-1,3,4-thiadiazoles, compound 6f is the most potent towards tested cancer cell lines (IC50 = 0.15-1.18 mu M). (C) 2012 Elsevier Masson SAS. All rights reserved.
Synthesis and Biological Evaluation of 2‐Arylamino‐5‐ (3′‐Indolyl)‐1,3,4‐Oxadiazoles as Potent Cytotoxic Agents
作者:Mukund P Tantak、Anil Kumar、Brett Noel、Kavita Shah、Dalip Kumar
DOI:10.1002/cmdc.201300221
日期:2013.9
scaffolds in medicinal chemistry, the indole and 1,3,4‐oxadiazole ring systems, gave rise to 2‐arylamino‐5‐(3′‐indolyl)‐1,3,4‐oxadiazoles with IC50 values in the nanomolar range against a panel of tumor cell lines. Preliminary structure–activity relationship studies indicate potential for improved selectivity through further manipulation of the oxadiazole C‐2 and C‐5 positions.
合理简单:药物化学中的两个关键支架,吲哚和 1,3,4-恶二唑环系统的偶联产生具有 IC 的 2-芳基氨基-5-(3'-吲哚基)-1,3,4-恶二唑针对一组肿瘤细胞系,在纳摩尔范围内有50 个值。初步的构效关系研究表明,通过进一步操纵恶二唑 C-2 和 C-5 位置可以提高选择性。