7-Phenoxy-Substituted 3,4-Dihydro-2<i>H</i>-1,2,4-benzothiadiazine 1,1-Dioxides as Positive Allosteric Modulators of α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid (AMPA) Receptors with Nanomolar Potency
作者:Eric Goffin、Thomas Drapier、Anja Probst Larsen、Pierre Geubelle、Christopher P. Ptak、Saara Laulumaa、Karoline Rovinskaja、Julie Gilissen、Pascal de Tullio、Lars Olsen、Karla Frydenvang、Bernard Pirotte、Julien Hanson、Robert E. Oswald、Jette Sandholm Kastrup、Pierre Francotte
DOI:10.1021/acs.jmedchem.7b01323
日期:2018.1.11
coefficient in the screening and the shape of the dimerization curve in small-angle X-ray scattering (SAXS) experiments using isolated GluA2 ligand-binding domain (GluA2-LBD) are consistent with binding of one molecule of 11m per dimer interface, contrary to most benzothiadiazine dioxides developed to date. This observation was confirmed by the X-ray structure of 11m bound to GluA2-LBD and by NMR. This is
我们在这里报告7-苯氧基取代的3,4-二氢-2 H -1,2,4-苯并噻二嗪1,1-二氧化物的合成及其作为AMPA受体阳性变构调节剂(AMPApams)的评估。考察了取代对苯氧基和4-位氮原子的影响。在HEK293细胞中表达的GluA2(Q)处(钙通量实验),最有效的化合物是11m(4-环丙基-7-(3-甲氧基苯氧基)-3,4-二氢-2 H -1,2,4-苯并噻二嗪1,1-二氧化物,EC 50= 2.0 nM)。使用隔离的GluA2配体结合结构域(GluA2-LBD)进行的小角X射线散射(SAXS)实验中的筛选中的Hill系数和二聚化曲线的形状与每个二聚体界面结合一个11m的分子是一致的,与迄今为止开发的大多数苯并噻二嗪二氧化物相反。通过与GluA2-LBD结合的11m的X射线结构和NMR证实了该观察结果。这是第一个达到纳摩尔范围的二氧化苯并噻二嗪二甲酰胺。