Synthesis of benzimidazole based analogues of sphingosine-1-phosphate: discovery of potent, subtype-selective S1P4 receptor agonists
作者:Jeremy J. Clemens、Michael D. Davis、Kevin R. Lynch、Timothy L. Macdonald
DOI:10.1016/j.bmcl.2004.07.030
日期:2004.10
receptor using a [gamma-(35)S]GTP binding assay as compared to an EC(50)=37 nM for the endogenous ligand. We also report the effects of altering stereochemistry at the C2 position, methylation at the C1 and C2 position, and activity differences between the alcohol and phosphate head groups of the analogues.
鞘氨醇-1-磷酸酯(S1P)是一种具有生物活性的溶血磷脂,具有通过与G蛋白偶联受体的S1P家族相互作用而诱导多种细胞应答的能力。该受体家族的一个成员,S1P(4),在淋巴样系统中高度表达,几乎全部表达,并且与细胞形状和运动的调节有关。该报告描述了几种基于苯并咪唑的强效S1P(4)受体选择性激动剂的合成。例如,与内源性配体的EC(50)= 37 nM相比,化合物9b使用[γ-(35)S] GTP结合分析在S1P(4)受体上显示EC(50)= 36 nM。我们还报告了改变立体化学在C2位置,甲基化在C1和C2位置的影响,