Design and synthesis of pyrazolopyridine derivatives as sphingosine 1-phosphate receptor 2 ligands
作者:Zonghua Luo、Xuyi Yue、Hao Yang、Hui Liu、Robyn S. Klein、Zhude Tu
DOI:10.1016/j.bmcl.2017.12.010
日期:2018.2
new sphingosine 1-phosphate receptor 2 (S1PR2) ligands were synthesized by modifying lead compound N-(2,6-dichloropyridin-4-yl)-2-(4-isopropyl-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridin-6-yl)hydrazine-1-carboxamide (JTE-013) and their binding affinities toward S1PRs were determined in vitro using [32P]S1P and cell membranes expressing recombinant human S1PRs. Among these ligands, 35a (IC50 = 29.1 ± 2.6 nM)
通过修饰先导化合物N- (2,6-dichloropyridin-4-yl)-2-(4-isopropyl-1,3-dimethyl-1 H - pyrazolo[ 3,4- b ]pyridin-6-yl)hydrazine-1-carboxamide (JTE-013) 及其对 S1PRs 的结合亲和力在体外使用 [ 32 P]S1P 和表达重组人 S1PRs 的细胞膜进行测定。在这些配体中,35a (IC 50 = 29.1 ± 2.6 nM) 和35b (IC 50 = 56.5 ± 4.0 nM) 对 S1PR2 的结合效力与 JTE-013 (IC 50 = 58.4 ± 7.4 nM) 相当,对 S1PR2 具有良好的选择性其他 S1PR (IC50 > 1000 纳米)。这些类似物的进一步优化可能会识别出针对 S1PR2 的其他更有效和选择性的化合物。