Asymmetric Synthesis of Pochonin E and F, Revision of Their Proposed Structure, and Their Conversion to Potent Hsp90 Inhibitors
作者:Ganesan Karthikeyan、Claudio Zambaldo、Sofia Barluenga、Vincent Zoete、Martin Karplus、Nicolas Winssinger
DOI:10.1002/chem.201200546
日期:2012.7.16
A concise and modular synthesis of pochonin E and F, and their epimers at C‐6 established the correct stereochemistry of these two natural products. Several members of the pochonin family have been shown to bind the heat shock protein 90 (Hsp90), which has been the focus of intense drug discovery efforts. Pochonin E and F as well as their epimers were derivatized into the corresponding pochoximes and
软骨素E和F以及它们在C-6上的差向异构体的简明和模块化合成建立了这两种天然产物的正确立体化学。软骨素家族的几个成员已显示与热激蛋白90(Hsp90)结合,而热激蛋白90已成为药物研发的重点。Pochonin E和F以及它们的差向异构体被衍生化为相应的Poxiximes,并在C-6位置进一步修饰。进行了分子动力学模拟,对接研究和Hsp90亲和力测量,以评估这些修饰的影响。