Discovery of a Novel and Selective Indoleamine 2,3-Dioxygenase (IDO-1) Inhibitor 3-(5-Fluoro-1<i>H</i>-indol-3-yl)pyrrolidine-2,5-dione (EOS200271/PF-06840003) and Its Characterization as a Potential Clinical Candidate
作者:Stefano Crosignani、Patrick Bingham、Pauline Bottemanne、Hélène Cannelle、Sandra Cauwenberghs、Marie Cordonnier、Deepak Dalvie、Frederik Deroose、Jun Li Feng、Bruno Gomes、Samantha Greasley、Stephen E Kaiser、Manfred Kraus、Michel Négrerie、Karen Maegley、Nichol Miller、Brion W Murray、Manfred Schneider、James Soloweij、Albert E Stewart、Joseph Tumang、Vince R Torti、Benoit Van Den Eynde、Martin Wythes
DOI:10.1021/acs.jmedchem.7b00974
日期:2017.12.14
oncology. Starting from HTS hit 5, IDO-1 inhibitor 6 (EOS200271/PF-06840003) has been developed. The structure–activity relationship around 6 is described and rationalized using the X-ray crystal structure of 6 bound to human IDO-1, which shows that 6, differently from most of the IDO-1 inhibitors described so far, does not bind to the heme iron atom and has a novel binding mode. Clinical candidate 6 shows
肿瘤使用色氨酸分解酶,例如吲哚胺2,3-二加氧酶(IDO-1)来诱导免疫抑制环境。IDO-1响应炎症刺激而被诱导,并通过效应T细胞无反应性和增强的Treg功能促进免疫耐受。因此,IDO-1是诱导关键免疫抑制机制的纽带,并代表肿瘤学中重要的免疫治疗靶标。从HTS 5开始,已开发出IDO-1抑制剂6(EOS200271 / PF-06840003)。周围的结构-活性关系6中描述和合理化使用的X射线晶体结构6结合人IDO-1,这表明6与迄今为止描述的大多数IDO-1抑制剂不同,它不与血红素铁原子结合,并具有新颖的结合方式。临床候选药物6在IDO-1人全血检测中显示出良好的功效,并且还显示出非常有利的ADME谱,从而导致有利的预期人药代动力学特性,包括16-19 h的预期半衰期。