Discovery, Synthesis, and in vitro Evaluation of West Nile Virus Protease Inhibitors Based on the 9,10-Dihydro-3H,4aH-1,3,9,10a-tetraazaphenanthren-4-one Scaffold
作者:Sanjay Samanta、Taian Cui、Yulin Lam
DOI:10.1002/cmdc.201200136
日期:2012.7
study, a WNV NS2B–NS3 protease inhibitor with a 9,10‐dihydro‐3H,4aH‐1,3,9,10a‐tetraazaphenanthren‐4‐one scaffold was identified by screening a small library of non‐peptidic compounds. This initial hit was optimized by solution‐phase synthesis and screening of a focused library of compounds bearing this scaffold. This led to the identification of a novel, uncompetitive inhibitor (1a40, IC50=5.41±0.45 μM)
西尼罗河病毒(WNV)是黄病毒科的成员,是一种由蚊子传播的病原体,每年引起大量人类感染。目前尚无疫苗和抗病毒疗法可用于人类。在这项研究中,通过筛选一个小的非肽库确定了一种具有9,10-dihydro-3 H,4a H -1,3,9,10a-四氮杂蒽酮-4-one骨架的WNV NS2B–NS3蛋白酶抑制剂化合物。通过固溶相合成和筛选带有该支架的化合物的重点文库,优化了最初的结果。这导致了一个新颖的鉴定,非竞争性抑制剂(1A40,IC 50 = 5.41±0.45μ中号)的WNV NS2B–NS3蛋白酶。该手性化合物与WNV蛋白酶的分子对接表明1a40的S 对映异构体似乎干扰了NS2B辅因子与NS3蛋白酶结构域之间的生产性相互作用。(S ] -1a40是抑制WNV NS3蛋白酶的首选异构体。