作者:Luca Laraia、Kosuke Ohsawa、Georgios Konstantinidis、Lucas Robke、Yao-Wen Wu、Kamal Kumar、Herbert Waldmann
DOI:10.1002/anie.201611670
日期:2017.2.13
The cinchona alkaloids are a privileged class of natural products and are endowed with diverse bioactivities. However, for compounds with the closely‐related oxazatricyclo[4.4.0.0]decane (“oxazatwistane”) scaffold, which are accessible from cinchonidine and quinidine by means of ring distortion and modification, biological activity has not been identified. We report the synthesis of an oxazatwistane
金鸡纳生物碱是天然产物中的特权类别,并具有多种生物活性。但是,对于具有密切相关的氧杂三环[4.4.0.0]癸烷(“恶唑基甲酸”)骨架的化合物,可以通过环变形和修饰从辛可尼定和奎尼丁中获得,但尚未鉴定出生物学活性。我们通过采用最新的CH功能化和金属催化的交叉偶联反应作为关键的后期多样性生成步骤,报告了草氮杂ist烷化合物集合的合成。在监测不同细胞过程的表型分析中对草氮杂ist烷生物活性的探索揭示了一类新的自噬抑制剂,称为草aut素,与天然产物的指导作用相反,