Discovery of novel purine nucleoside derivatives as phosphodiesterase 2 (PDE2) inhibitors: Structure-based virtual screening, optimization and biological evaluation
作者:Xiaoxia Qiu、Yiyou Huang、Deyan Wu、Fei Mao、Jin Zhu、Wenzhong Yan、Hai-Bin Luo、Jian Li
DOI:10.1016/j.bmc.2017.11.022
日期:2018.1
bioassay. Considering the potential therapeutic benefit of PDE2, a series of purine nucleoside derivatives based on the structure and binding mode of 4 were designed, synthesized and evaluated, which led to the discovery of the best compound 14e with a significant improvement of inhibitory potency (IC50 = 0.32 ± 0.04 μM). Further molecular docking and molecular dynamic (MD) simulations studies revealed
磷酸二酯酶2(PDE2)已被广泛用于中枢神经系统(CNS)疾病和肺动脉高压的潜在治疗。在本文中,我们 通过基于结构的虚拟筛选和生物测定法确定了FDA批准的药物clofarabine (4)具有潜在的PDE2抑制活性(IC 50 = 3.12± 0.67μM )。考虑PDE2,一系列基于结构和结合模式嘌呤核苷衍生物的潜在治疗益处4设计,合成并评价,这导致最佳的化合物的发现14E与抑制效力的显著改善(IC 50 = 0.32±0.04μM)。进一步的分子对接和分子动力学(MD)模拟研究表明,14e的5'-苄基可通过与Leu770,Thr768,Thr805和Leu809等疏水残基形成额外的范德华相互作用,从而与PDE2的独特疏水口袋相互作用。可能有助于增强其对PDE2的抑制作用。本文报道的这些潜在化合物以及有价值的构效关系(SAR)可能为进一步开发有效的PDE2抑制剂带来重要指导。