Synthesis and in vitro evaluation of Ca 2+ channel blockers 1,4-dihydropyridines analogues against Trypanosoma cruzi and Leishmania amazonensis : SAR analysis
作者:Luiz A.E. Pollo、Milene H. de Moraes、Júlia Cisilotto、Tânia B. Creczynski-Pasa、Maique W. Biavatti、Mario Steindel、Louis P. Sandjo
DOI:10.1016/j.parint.2017.08.005
日期:2017.12
4-dihydropyridine (DHP) core have recently attracted attention concerning their antiparasitic effect against various species of Leishmania and Trypanosoma. This approach named drugs repositioning led to interesting results, which have prompted us to prepare 21 DHP's analogues. The 1,4-DHP scaffold was decorated with different function groups at tree points including the nitrogen atom (NH and N-phenyl), the
含有1,4-二氢吡啶(DHP)核心的药物最近因其对多种利什曼原虫和锥虫的抗寄生虫作用而引起关注。这种称为药物重新定位的方法产生了有趣的结果,促使我们制备了21种DHP的类似物。1,4-DHP支架在树点装饰有不同的官能团,包括氮原子(NH和N-苯基),连接至C-4的芳基(各种取代的芳基残基)以及碳原子2和6(带有Ph或Me组)。此外,评估了产品对三种癌症和非肿瘤细胞系的细胞毒性。其中只有6种具有抗增殖作用,且作用微弱(CC 50包括介于27和98μM之间)建议这些DHP作为对抗亚马逊L. amazonensis和T. cruzi的胞内鞭毛形式的良好候选者。亚马逊利什曼原虫是DHP类敏感5,11和15(IC 50个在15.11,45.70和53.13μM,分别值),而他们中的12显示显著至中度针对杀锥虫活动锥虫。用化合物得到最佳的杀锥虫活动2,18和21示出IC 50个值在4.95,5.44 6