Synthesis, in vitro evaluation, and SAR studies of a potential antichagasic 1H-pyrazolo[3,4-b]pyridine series
作者:Luiza R.S. Dias、Marcelo B. Santos、Sérgio de Albuquerque、Helena C. Castro、Alessandra M.T. de Souza、Antônio C.C. Freitas、Maria A.V. DiVaio、Lucio M. Cabral、Carlos R. Rodrigues
DOI:10.1016/j.bmc.2006.09.067
日期:2007.1.1
of new drugs against Trypanosoma cruzi is still required since the only two drugs currently used cause severe side effects. In this work we described the synthesis, the in vitro biological evaluation, and the SAR results of 1H-pyrazolo[3,4-b]pyridine derivatives, a new antichagasic agent series. The presence of fluorine, hydroxyl or nitro group at Y position resulted in at least one or two promising
由于目前仅使用两种药物会引起严重的副作用,因此仍需要开发抗克氏锥虫的新药。在这项工作中,我们描述了1H-吡唑并[3,4-b]吡啶衍生物(一种新的抗chachaicant剂系列)的合成,体外生物学评估和SAR结果。Y位置上存在氟,羟基或硝基会在每组衍生物(6f,6g,6i,6l和6m)中至少产生一个或两个有前途的化合物。SAR研究表明,观察到的锥虫杀灭活性取决于几何和立体电子参数(MEP和前沿分子轨道HOMO和LUMO)。我们还使用Osiris程序来计算和比较活性最高的衍生物(6g)(IC(50)= 1.9microg / mL),非活性化合物(6o),以及目前有毒的抗chachagas药物(nifurtimox和benznidazole)。有趣的是,6g的潜在药物似然性高于尼富替莫和苯硝唑,而6o的潜在相似性最低。