Identification of a New Class of Selective Excitatory Amino Acid Transporter Subtype 1 (EAAT1) Inhibitors Followed by a Structure–Activity Relationship Study
作者:Stinne W. Hansen、Mette N. Erichsen、Bingru Fu、Walden E. Bjørn-Yoshimoto、Bjarke Abrahamsen、Jacob C. Hansen、Anders A. Jensen、Lennart Bunch
DOI:10.1021/acs.jmedchem.6b01058
日期:2016.10.13
Screening of a small compound library at the three excitatory amino acid transporter subtypes 1–3 (EAAT1–3) resulted in the identification of compound (Z)-4-chloro-3-(5-((3-(2-ethoxy-2-oxoethyl)-2,4-dioxothiazolidin-5-ylidene)methyl)furan-2-yl)benzoic acid (1a) that exhibited a distinct preference as an inhibitor at EAAT1 (IC50 20 μM) compared to EAAT2 and EAAT3 (IC50 > 300 μM). This prompted us to
在三种兴奋性氨基酸转运蛋白亚型1-3(EAAT1-3)上筛选小型化合物文库,从而鉴定出化合物(Z)-4-氯-3-(5-((3-(2-乙氧基- (2-氧代乙基)-2,4-二氧噻唑烷-5-亚甲基)呋喃-2-基)苯甲酸(1a)与EAAT2和EAAT3(EA 50)相比在EAAT1(IC 50 20μM)上表现出明显的抑制作用( IC 50 > 300μM)。这促使我们接受主题1a通过购买,合成和随后的总共36种类似物的药理学表征,进行详细的构效关系研究。尽管这种努力并未导致与通过点击显示的类似物在EAAT1上具有显着改善的抑制效能,但它提供了对该支架的EAAT1活性的结构要求的详细见解。这类新的EAAT1选择性抑制剂的发现不仅补充了EAAT领域目前可用的药理学工具,而且证实了非α-氨基酸衍生的EAAT配体在亚型选择性调节方面具有相当大的潜力。运输者。