Synthesis and Biological Evaluation of (−)- and (+)-Debromoflustramine B and Its Analogues as Selective Butyrylcholinesterase Inhibitors
作者:Ernesto Rivera-Becerril、Pedro Joseph-Nathan、Víctor M. Pérez-Álvarez、Martha S. Morales-Ríos
DOI:10.1021/jm800277g
日期:2008.9.11
have been synthesized as debromoflustramine B (4a) analogues for their evaluation as cholinesterase inhibitors. Structure-activity studies of this series revealed the optimum pharmacophoric elements required for activity and resulted in the discovery of selective butyrylcholinesterase inhibitors with micromolar potency. Biological testing demonstrated that (-)-4a was 7500 times more potent than its enantiomer
一系列吡咯烷二氢吲哚已被合成为去溴氟链胺B(4a)类似物,用于评估其作为胆碱酯酶抑制剂。该系列的结构活性研究揭示了活性所需的最佳药效学元素,并导致发现了具有微摩尔效价的选择性丁酰胆碱酯酶抑制剂。生物测试表明(-)-4a的效能是其对映体(+)-4b的7500倍。该系列中对BChE活性最强的抑制剂是去甲基去溴氟stramine B(5a),IC50值为0.26 microM。介绍了15的X射线晶体学分析以及将所选化合物对接人BChE(PDB 1POI)的过程。分子模型研究表明,π-氢键,经典氢键和阳离子-pi相互作用对于最佳效能至关重要。