Total synthesis of bicyclic depsipeptides spiruchostatins C and D and investigation of their histone deacetylase inhibitory and antiproliferative activities
作者:Koichi Narita、Yurie Fukui、Yui Sano、Takao Yamori、Akihiro Ito、Minoru Yoshida、Tadashi Katoh
DOI:10.1016/j.ejmech.2012.12.023
日期:2013.2
The bicyclic depsipeptide histone deacetylase (HDAC) inhibitors spiruchostatins C and D were synthesized for the first time in a highly convergent and unified manner. The method features the amide coupling of a d-leucine–d-cysteine- or d-valine–d-cysteine-containing segment with a d-alanine- or d-valine-containing segment to directly assemble the corresponding seco-acids, key precursors of macrolactonization
双环二肽组蛋白去乙酰化酶(HDAC)抑制剂spiruchostatins C和D首次以高度收敛和统一的方式合成。该方法采用了酰胺的耦合d -leucine- d -cysteine-或d -valine- d段与含半胱氨酸- d -alanine-或d含缬氨酸段直接组装相应的开环-酸,大内酯化的关键前体。合成的大肽肽的HDAC抑制分析和细胞生长抑制分析确定了螺旋藻抑素A–D与临床批准的大肽肽FK228(romidepsin)相比的效力顺序。揭示了结构-活性关系(SAR)的新颖方面。