Synthesis and evaluation of oxindoles as promising inhibitors of the immunosuppressive enzyme indoleamine 2,3-dioxygenase 1
作者:Saurav Paul、Ashalata Roy、Suman Jyoti Deka、Subhankar Panda、Gopal Narayan Srivastava、Vishal Trivedi、Debasis Manna
DOI:10.1039/c7md00226b
日期:——
oxindoles from L-Trp, tryptamine and isatin. Compounds with C3-substituted oxindole moieties showed moderate inhibitory activity against the purified human IDO1 enzyme. Their optimization led to the identification of potent compounds, 6, 22, 23 and 25 (IC50 = 0.19 to 0.62 μM), which are competitive inhibitors of IDO1 with respect to L-Trp. These potent compounds also showed IDO1 inhibition potencies in
吲哚胺2,3-二加氧酶1(IDO1)被认为是治疗癌症,慢性感染和其他与免疫抑制有关的疾病的重要治疗靶标。在理解IDO1酶的催化机理方面的最新进展表明,L-色氨酸(L- Trp )向N-甲酰基kynurenine的转化通过环氧化物中间态进行。因此,我们从L -Trp,色胺和靛红合成了一系列3-取代的羟吲哚。具有C3取代的羟吲哚基团的化合物对纯化的人IDO1酶表现出中等的抑制活性。他们的优化导致了鉴定有效的化合物的,6,22,23和25(IC 50 = 0.19至0.62μM),它们是IDO1相对于L -Trp的竞争性抑制剂。这些有效的化合物还在MDA-MB-231细胞中的低微摩尔范围(IC 50 = 0.33–0.49μM)中显示出IDO1抑制能力。这些有效化合物在不同模型的癌细胞(MDA-MB-231,A549和HeLa)和巨噬细胞(J774A.1)中的细胞毒性微不足道。对于这些化合物,还