The cytotoxic styryl lactone goniothalamin is an inhibitor of nucleocytoplasmic transport
作者:Jean-Yves Wach、Stephan Güttinger、Ulrike Kutay、Karl Gademann
DOI:10.1016/j.bmcl.2010.03.049
日期:2010.5
rationalized also by molecular modeling. The cytotoxic styryl lactone natural product was prepared via an enantioselective Cr(III) catalyzed hetero Diels–Alder reaction and a Sonogashira coupling. A series of analogs was synthesized and only the oxidized goniothalamin derivative featuring an alkyne spacer was found active. Unsaturated lactones of natural origin other than leptomycin (LMB) are thus suggested
体内核输出分析(在HeLa细胞中对Rio2进行免疫染色)表明(R)-goniothalamin是500 nM以上核仁转运的抑制剂,这也通过分子建模得到了合理化。具有细胞毒性的苯乙烯基内酯天然产物是通过对映选择性Cr(III)催化的杂Diels-Alder反应和Sonogashira偶联制备的。合成了一系列类似物,并且仅发现了具有炔间隔基的氧化的鸟胆素衍生物。因此,提出了除瘦霉素(LMB)以外的天然来源的不饱和内酯可通过靶向CRM1核受体的类似机制起作用。