2,8-Diazaspiro[4.5]decan-8-yl)pyrimidin-4-amine potent CCR4 antagonists capable of inducing receptor endocytosis
作者:Lena Shukla、Laura A. Ajram、Malcolm Begg、Brian Evans、Rebecca H. Graves、Simon T. Hodgson、Sean M. Lynn、Afjal H. Miah、Jonathan M. Percy、Panayiotis A. Procopiou、Stephen A. Richards、Robert J. Slack
DOI:10.1016/j.ejmech.2016.02.058
日期:2016.6
A number of potent 2,8-diazaspiro[4.5]decan-8-yl)pyrimidin-4-amine CCR4 antagonists binding to the extracellular allosteric site were synthesised. (R)-N-(2,4-Dichlorobenzyl)-2-(2-(pyrrolidin-2-ylmethyl)-2,8-diazaspiro[4.5]decan-8-yl)pyrimidin-4-amine (R)-(18a) has high affinity in both the [125I]-TARC binding assay with a pKi of 8.8, and the [35S]-GTPγS functional assay with a pIC50 of 8.1, and high
合成了许多有效的与细胞外变构位点结合的2,8-二氮杂螺[4.5] decan-8-基)嘧啶-4-胺CCR4拮抗剂。(R)-N-(2,4-二氯苄基)-2-(2-(吡咯烷-2-基甲基)-2,8-二氮杂螺[4.5]十烷-8-基)嘧啶-4-胺(R)-器(18a)具有高的亲和力在两个[ 125与AP I] -TARC结合测定ķ我的8.8,并且[ 35 S] -GTP γ功能对测定用的pIC 50为8.1,高活性在人全血液肌动蛋白聚合测定(pA 2 = 6.7)。还研究了最有效的拮抗剂诱导CCR4内吞的能力,发现它们能使约60%的细胞表面受体内化,这一特性是趋化因子受体的小分子拮抗剂所不具备的。