Illudalic acid as a potential LAR inhibitor: Synthesis, SAR, and preliminary studies on the mechanism of action
作者:Qing Ling、Yue Huang、Yueyang Zhou、Zhengliang Cai、Bing Xiong、Yahui Zhang、Lanping Ma、Xin Wang、Xin Li、Jia Li、Jingkang Shen
DOI:10.1016/j.bmc.2008.06.014
日期:2008.8
A novel synthesis of the human leukocyte common antigen-related (LAR) phosphatase inhibitor, illudalic acid, has been achieved by a route more amenable to structure modi. cations. A series of simpler analogues of illudalic acid was synthesized and evaluated for potency in inhibiting LAR. The structure -activity relationship (SAR) study has shown that the 5-formyl group and the hemi-acetal lactone are crucial for effective inhibition of LAR activity, and are the key pharmacophores of illudalic acid. The fused dimethylcyclopentene ring moiety evidently helps to enhance the potency of illudalic acid against LAR. A preliminary study of the mechanism of action of illudalic acid against LAR was conducted using electrospray ionization mass spectrometry (ESI-MS) and molecular docking techniques. The results are in full agreement with the described mechanism. (C) 2008 Elsevier Ltd. All rights reserved.