Conformationally constrained analogues of diacylglycerol (DAG). Effect on protein kinase C (PK-C) binding by the isosteric replacement of sn-1 and sn-2 esters in DAG-lactones
作者:Ji-Hye Kang、Hye-Eun Chung、Su Yeon Kim、Yerim Kim、Jeewoo Lee、Nancy E Lewin、Larry V Pearce、Peter M Blumberg、Victor E Marquez
DOI:10.1016/s0968-0896(03)00156-1
日期:2003.6
to determine the importance of the two ester pharmacophores in high affinity, conformationally constrained DAG-lactones (Lac-1-5) as PK-C ligands, we have independently replaced the sn-1 and sn-2 carbonyl esters in these compounds by ketone (2, 10, 11), amide (3, 25-28), and hydroxyl (12, 13) isosteres. Although the ketone analogue of the sn-1 ester (2) exhibited comparable activity to the parent Lac-1
为了确定两种酯药效基团在高亲和力,构象受约束的DAG-内酯(Lac-1-5)作为PK-C配体中的重要性,我们在这些化合物中独立替换了sn-1和sn-2羰基酯由酮(2、10、11),酰胺(3、25-28)和羟基(12、13)等排体组成。尽管考虑到亲脂性的差异,sn-1酯(2)的酮类似物表现出与亲本Lac-1相当的活性,但与亲本DAG内酯相比,其他等位基因的PK-Cα配体差得多。这项研究表明,DAG-内酯中的酯官能团在配体与活性位点上的Gly253形成强氢键的能力中起着重要作用。