Design, synthesis and biological evaluation of oxygenated chalcones as potent and selective MAO-B inhibitors
作者:Della Grace Thomas Parambi、Jong Min Oh、Seung Cheol Baek、Jae Pil Lee、Anna Rita Tondo、Orazio Nicolotti、Hoon Kim、Bijo Mathew
DOI:10.1016/j.bioorg.2019.103335
日期:2019.12
addition, most of the derivatives potently inhibited MAO-A and O6 was the most potent inhibitor with an IC50 value of 0.029 µM, followed by O3, O4, O9, and O2 (IC50 = 0.035, 0.053, 0.072, and 0.082 µM, respectively). O23 had a high selectivity index (SI) value for MAO-B of 138.1, and O20 (IC50 value for MAO-B = 0.010 µM) had an extremely high SI of >4000. In dialysis experiments, inhibitions of MAO-A and
本研究记录了氧化查尔酮(O1-O26)衍生物的合成及其抑制单胺氧化酶的能力。检查的所有26种衍生物均显示出对MAO-B的有效抑制活性。化合物O23对MAO-B表现出最大的抑制活性,IC 50值为0.0021 µM,其次是化合物O10和O17(IC 50分别 为0.0030和0.0034 µM)。此外,大多数衍生物均能有效抑制MAO-A和O6,是最有效的抑制剂,IC 50值为0.029 µM,其次是O3,O4,O9和O3。O2(IC 50 分别为0.035、0.053、0.072和0.082 µM)。O23对MAO-B的选择性指数(SI)值为138.1,而O20(对于MAO-B的IC 50值为0.010 µM)具有非常高的SI> 4000。在透析实验中,O6和O23对MAO-A和MAO-B的抑制作用分别恢复到了各自的可逆参考水平,表明这两种都是可逆抑制剂。动力学研究表明,O6和O23分别以K