Design, synthesis and biological evaluation of novel naphthoquinone derivatives as IDO1 inhibitors
作者:Liangkun Pan、Qiang Zheng、Yu Chen、Rui Yang、Yanyan Yang、Zhongjun Li、Xiangbao Meng
DOI:10.1016/j.ejmech.2018.08.013
日期:2018.9
Indoleamine 2,3-dioxygenase 1 (IDO1) mediated kynurenine pathway of tryptophan degradation is identified as an appealing and novel target in immunotherapy for the treatment of cancer. In this study, a novel series of naphthoquinone derivatives were synthesized, characterized and evaluated for their inhibitory activities against IDO1, and their structure−activity relationship was investigated. Among them,
吲哚胺 2,3-双加氧酶 1 (IDO1) 介导的色氨酸降解犬尿氨酸途径被确定为治疗癌症的免疫疗法中一个有吸引力的新靶点。在这项研究中,合成、表征和评估了一系列新的萘醌衍生物对 IDO1 的抑制活性,并研究了它们的构效关系。其中,化合物T16、T44、T47、T49、T53和T54显示出有效的IDO1抑制活性,IC 50值介于18和61 nM之间,其效力比正在进行临床试验III评估的INCB024360更有效。此外,化合物T28、T44和T53使大鼠血浆中的犬尿氨酸水平降低 30%–50%。还评估了表现出优异 IDO1 抑制活性的化合物对色氨酸 2,3-双加氧酶 (TDO) 的抑制活性。其中,化合物T28 (IDO1 IC 50 = 120 nM) 显示出有希望的 TDO 抑制 (IC 50 72 nM),并被鉴定为 IDO1/TDO 双重抑制剂。