Design, stereoselective synthesis, configurational stability and biological activity of 7-chloro-9-(furan-3-yl)-2,3,3a,4-tetrahydro-1H-benzo[e]pyrrolo[2,1-c][1,2,4]thiadiazine 5,5-dioxide
作者:Marina Maria Carrozzo、Umberto Maria Battisti、Giuseppe Cannazza、Giulia Puia、Federica Ravazzini、Aurelia Falchicchio、Serena Perrone、Cinzia Citti、Krzysztof Jozwiak、Daniela Braghiroli、Carlo Parenti、Luigino Troisi
DOI:10.1016/j.bmc.2014.07.017
日期:2014.9
A stereoselective synthesis was projected to obtain single enantiomer of the latter compound. Absolute configuration was assigned by X-ray crystal structure. Patch clamp experiments evaluating the activity of single enantiomers as AMPAr positive allosteric modulator showed that R stereoisomer is the active component. Molecular modeling studies were performed to explain biological results. An on-column
最近,手性5-芳基苯并噻二嗪衍生物作为AMPA受体(AMPAr)阳性调节剂表现出令人感兴趣的药理活性,因此引起了人们的特别关注。然而,对其构型稳定性的研究表明在生理条件下快速对映异构化。为了增强构稳定,维护活动安帕,我们设计了新型化合物([R ,小号)-7-氯-9-(呋喃-3-基)-2,3,3a,4-四氢-1- ħ -苯并[ e ]吡咯并[2,1- c带有吡咯并与苯并噻二嗪核心上的5-(呋喃-3-基)取代基偶联的吡咯并[],[1,2,4]噻二嗪5,5-二氧化物。计划进行立体选择性合成以获得后一种化合物的单一对映异构体。绝对构型由X射线晶体结构确定。膜片钳实验评估单个对映体作为AMPAr阳性变构调节剂的活性,表明R立体异构体是活性成分。进行分子建模研究以解释生物学结果。应用柱上停流二维再循环HPLC方法从化合物的外消旋混合物开始大规模获得具有对映异构体富集的活性对映异构体。