Chemistry and anti-herpes simplex virus type 1 evaluation of 4-substituted-1H-1,2,3-triazole-nitroxyl-linked hybrids
作者:Anna C. Cunha、Vitor F. Ferreira、Maria G. F. Vaz、Rafael A. Allão Cassaro、Jackson A. L. C. Resende、Carolina Q. Sacramento、Jéssica Costa、Juliana L. Abrantes、Thiago Moreno L. Souza、Alessandro K. Jordão
DOI:10.1007/s11030-020-10094-2
日期:2021.11
HSV disease is distributed worldwide. Anti-herpesvirus drugs are a problem in clinical settings, particularly in immunocompromised individuals undergoing herpes simplex virus type 1 infection. In this work, 4-substituted-1,2,3-1H-1,2,3-triazole linked nitroxyl radical derived from TEMPOL were synthesized, and their ability to inhibit the in vitro replication of HSV-1 was evaluated. The nitroxide derivatives were characterized by infrared spectroscopy and elemental analysis, and three of them had their crystal structures determined by single-crystal X-ray diffraction. Four hybrid molecules showed important anti-HSV-1 activity with IC50 values ranged from 0.80 to 1.32 µM. In particular, one of the nitroxide derivatives was more active than Acyclovir (IC50 = 0.99 µM). All compounds tested were more selective inhibitors than the reference antiviral drug. Among them, two compounds were 4.5 (IC50 0.80 µM; selectivity index CC50/IC50 3886) and 7.7 times (IC50 1.10 µM; selectivity index CC50/IC50 6698) more selective than acyclovir (IC50 0.99 µM; selectivity index CC50/IC50: 869). These nitroxide derivatives may be elected as leading compounds due to their antiherpetic activities and good selectivity.
HSV 疾病遍布全球。抗疱疹病毒药物是临床上的一个难题,尤其是在免疫力低下的 1 型单纯疱疹病毒感染者中。在这项工作中,合成了由 TEMPOL 衍生的 4-取代-1,2,3-1H-1,2,3-三唑连接的亚硝基自由基,并评估了它们抑制 HSV-1 体外复制的能力。通过红外光谱和元素分析对亚硝基衍生物进行了表征,并通过单晶 X 射线衍射测定了其中三种衍生物的晶体结构。四个杂交分子显示出重要的抗HSV-1活性,IC50值介于0.80至1.32 µM之间。其中一种硝基衍生物的活性尤其高于阿昔洛韦(IC50 = 0.99 µM)。与参考抗病毒药物相比,所有测试化合物都是更具选择性的抑制剂。其中,两个化合物的选择性分别是阿昔洛韦(IC50 0.80 µM; 选择性指数 CC50/IC50 3886)的 4.5 倍(IC50 1.10 µM; 选择性指数 CC50/IC50 6698)和 7.7 倍(IC50 0.99 µM; 选择性指数 CC50/IC50: 869)。由于这些硝基衍生物具有抗带状疱疹活性和良好的选择性,可被选为主要化合物。