Ring-Expanded (“Fat”) Nucleoside and Nucleotide Analogues Exhibit Potent in Vitro Activity against <i>Flaviviridae</i> NTPases/Helicases, Including Those of the West Nile Virus, Hepatitis C Virus, and Japanese Encephalitis Virus
作者:Ning Zhang、Huan-Ming Chen、Verena Koch、Herbert Schmitz、Ching-Len Liao、Maria Bretner、Vishweshwar S. Bhadti、Ali I. Fattom、Robert B. Naso、Ramachandra S. Hosmane、Peter Borowski
DOI:10.1021/jm030842j
日期:2003.9.1
A series of ring-expanded ("fat") heterocycles, nucleoside and nucleotide analogues (RENs) containing the imidazo[4,5-e][1,3]diazepine ring system (9, 14, 15, 18, 24-26, 28, 31, and 33) and imidazo[4,5-e][1,2,4]triazepine ring systems (30b, 30c, 32, and 34), have been synthesized as potential inhibitors of NTPases/helicases of Flaviviridae, including the West Nile virus (WNV), hepatitis C virus (HCV)
一系列含有咪唑并[4,5-e] [1,3]二氮杂ring环系统的环膨胀(“脂肪”)杂环,核苷和核苷酸类似物(REN)(9、14、15、18、24-26 ,28、31和33)和咪唑并[4,5-e] [1,2,4]三氮杂ring环系统(30b,30c,32和34)已被合成为黄病毒科NTPase /螺旋酶的潜在抑制剂包括西尼罗河病毒(WNV),丙型肝炎病毒(HCV)和日本脑炎病毒(JEV)。该研究还包括人酶Suv3(delta1-159)的氨基末端截短形式,以评估RENs对病毒酶的选择性。REN的类似物包括杂环碱基第1位的结构变异,并且在两种糖部分的类型(核糖,2'-脱氧核糖,和无环糖)以及这些糖与杂环碱基的连接方式(α与β端基异构构型)。针对病毒NTPase / helase的解旋酶和ATPase活性分别进行生化筛选目标REN。许多REN抑制病毒解旋酶活性,其IC50值在微摩尔浓度范围内变化,