An Improved Preparation of the Activity-Based Probe JPM-OEt and In Situ Applications
作者:Matthew Bogyo、Kareem A. Chehade、Amos Baruch、Steven H. Verhelst
DOI:10.1055/s-2004-837295
日期:——
A short, stereoselective synthesis of the general, cell permeable cathepsin probe JPM-OEt, is presented. The synthetic route is improved and described in more detail than previous reports for related compounds. This serves as a facile method for the synthesis of multi-gram quantities of activity-based probes utilizing an epoxide-succinyl scaffold. Additionally, JPM-OEt is shown to be cell permeable, allowing in vivo characterization of cysteine proteases. More importantly, this reagent has recently been shown to be an effective general inhibitor of papain family cysteine proteases in animal models of cancer. For this reason the outlined synthesis method will enable future in vivo studies using this reagent.
本文介绍了一种通用的、可渗透细胞的胰蛋白酶探针 JPM-OEt 的简短立体选择性合成方法。与之前有关相关化合物的报道相比,该合成路线得到了改进和更详细的描述。这是一种利用环氧化物-琥珀酰支架合成多克活性探针的简便方法。此外,JPM-OEt 还具有细胞渗透性,可以在体内鉴定半胱氨酸蛋白酶。更重要的是,这种试剂最近在癌症动物模型中被证明是一种有效的木瓜蛋白酶家族半胱氨酸蛋白酶通用抑制剂。因此,概述的合成方法将有助于今后使用这种试剂进行体内研究。