Design and synthesis of novel 7-aminosubstituted pyrido[2,3-b]pyrazines exhibiting anti-breast cancer activity
作者:Orestis Argyros、Nikolaos Lougiakis、Eva Kouvari、Alexandra Papafotika、Catherine P. Raptopoulou、Vassilis Psycharis、Savvas Christoforidis、Nicole Pouli、Panagiotis Marakos、Constantin Tamvakopoulos
DOI:10.1016/j.ejmech.2016.12.025
日期:2017.1
inhibitors. In the current study, a series of novel substituted pyridopyrazine derivatives have been rationally designed and evaluated as multi-kinase inhibitors in the PI3K pathway. The target compounds were prepared from 6-amino-2-picoline, which upon nitration and selective reduction was converted to suitably substituted 6-methyl-7-aminopyrido[2,3-b]pyrazines. Suitable manipulation of the former
尽管抗体治疗和蛋白激酶抑制剂得到了革命性的发展,但乳腺癌(BrCa)仍未满足医疗需求。在当前的研究中,已经合理设计了一系列新颖的取代吡啶并吡嗪衍生物,并将其评估为PI3K途径中的多激酶抑制剂。由6-氨基-2-甲基吡啶制备目标化合物,在硝化和选择性还原后将其转化为适当取代的6-甲基-7-氨基吡啶并[2,3- b ]吡嗪。对前胺的适当处理提供了设计的类似物,然后在体外对其进行了评估使用MTT细胞毒性试验可针对几种BrCa细胞系进行抗。对最有效的化合物进行了广泛的蛋白激酶评估,同时通过LC-MS / MS测定了其药代动力学参数。在HER2扩增的BrCa异种移植模型(HCC1954)中对命中化合物(14a)进行了体内评估,并使用基于蛋白质印迹的磷酸激酶测定和免疫组织化学确定了疗效。该衍生物在所有BrCa细胞系中均显示出较低的微摩尔细胞毒性潜能,对PI3Kα野生型和H1047R突变型酶具有轻度抑制作用,并以10