Synthesis of substituted diphenyl sulfones and their structure–activity relationship with the antagonism of 5-НТ6 receptors
作者:Alexandre Ivachtchenko、Elena Golovina、Madina Kadieva、Oleg Mitkin、Sergei Tkachenko、Ilya Okun
DOI:10.1016/j.bmc.2013.05.040
日期:2013.8
Substituted diphenyl sulfones (10a–n) were synthesised, and the structures were confirmed by NMR, LC–MS and X-ray crystallography. Their antagonistic activities towards 5-HT6 receptor were assessed in a cell-based functional assay. Diphenyl sulfone 10a, in spite of being the smallest and simplest known sulfonyl-containing 5-HT6R antagonist, showed a strong potency (Ki = 1.6 μM). Its derivative with
合成了取代的二苯砜(10a - n),并通过NMR,LC-MS和X射线晶体学证实了结构。在基于细胞的功能测定中评估了它们对5-HT 6受体的拮抗活性。尽管二苯砜10a是已知的最小和最简单的含磺酰基的5-HT 6 R拮抗剂,但仍显示出强大的效价(K i = 1.6μM)。其具有甲胺取代基的衍生物10克(N-甲基-2-(苯磺酰基)苯胺)的活性是二苯砜的活性的66倍(K i = 24.3 nM)。在其中添加哌嗪基部分相对于化合物10m中的磺酰基的对位(N-甲基-2-(苯基磺酰基)-5-哌嗪-1-基苯胺)导致效力进一步增加150倍(K i = 0.16 nM),从而阻断了血清素诱导的人重组5-HT 6受体稳定转染的HEK-293细胞应答。