当前位置: X-MOL 学术Arch. Pharm. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
New aryloxy-quinone derivatives with promising activity on Trypanosoma cruzi
Archiv der Pharmazie ( IF 4.3 ) Pub Date : 2019-11-11 , DOI: 10.1002/ardp.201900213
Christian Espinosa-Bustos 1 , Karina Vázquez 2 , Javier Varela 3 , Hugo Cerecetto 3, 4 , Margot Paulino 5 , Rodrigo Segura 6 , Jaime Pizarro 6 , Brenda Vera 5 , Mercedes González 3 , Ana M Zarate 7 , Cristian O Salas 7
Affiliation  

Continuing with a program to develop new quinone derivatives as biologically active compounds, we designed and synthesized a new series of aryloxy‐quinones, which were evaluated in vitro against Trypanosoma cruzi in epimastigote form. Chemical modifications in three specific moieties on the aryloxy‐quinone core were considered for developing new anti‐T. cruzi agents. The majority of our new quinones showed higher potency (IC50 values of <0.70 µM) than nifurtimox, a known pharmaceutical used as a baseline drug (IC50 values of 7.00 µM); however, only two of them elicited higher selectivity than nifurtimox against Vero cells. A structure–activity relationship analysis provided information about the stereoelectronic features of these compounds, which are responsible for an increase in trypanosomicidal activity. Using a pharmacophore model, we mapped the substitution patterns of the five pharmacophoric features of trypanosomicidal activity. We chose the Epc1 compounds and found no relationship with the trypanosomicidal effects. These results provided useful information about the structural characteristics for developing new aryloxy‐quinones with higher potency against the protozoan parasite T. cruzi.

中文翻译:

对克氏锥虫具有良好活性的新芳氧基-醌衍生物

继续开发新的醌衍生物作为生物活性化合物的计划,我们设计并合成了一系列新的芳氧基-醌,在体外对上鞭毛体形式的克氏锥虫进行了评估。芳氧基-醌核心上三个特定部分的化学修饰被考虑用于开发新的抗 T。克鲁兹特工。我们的大多数新醌显示出比硝呋莫司更高的效力(IC50 值 <0.70 µM),这是一种用作基线药物的已知药物(IC50 值为 7.00 µM);然而,其中只有两种对 Vero 细胞的选择性高于硝呋莫司。构效关系分析提供了有关这些化合物的立体电子特征的信息,这些信息是增加锥虫活性的原因。使用药效团模型,我们绘制了杀锥虫活性的五种药效特征的替代模式。我们选择了 Epc1 化合物,发现与杀锥虫效果没有关系。这些结果为开发新的芳氧基-醌类化合物的结构特征提供了有用的信息,该化合物对原生动物寄生虫 T. cruzi 具有更高的效力。
更新日期:2019-11-11
down
wechat
bug