Ovatodiolides: Scalable Protection‐Free Syntheses, Configuration Determination, and Biological Evaluation against Hepatic Cancer Stem Cells
作者:Junhong Xiang、Yahui Ding、Jiaxin Li、Xiuhe Zhao、Yuanjun Sun、Da Wang、Liang Wang、Yue Chen
DOI:10.1002/anie.201904096
日期:2019.7.29
ng metathesis reactions to install the macrocycle‐fused butenolide ring and a tandem allylboration/lactonization to build the α‐methylene‐γ‐lactone. Our syntheses have enabled the determination of the hitherto unknown stereochemical configurations of this family of natural products. Preliminary tests of structure–activity relationships were conducted with four natural ovatodiolides and three analogues
首次开发了一种简明的,可扩展的,六步(最长线性序列)的合成卵磷脂的合成途径。这种无保护基团的途径具有串联开环复分解/闭环复分解反应,以安装大环稠合的丁烯内酯环和串联的烯丙基硼酸酯化/内酯化反应以构建α-亚甲基-γ-内酯。我们的合成方法能够确定该天然产物家族迄今未知的立体化学构型。结构-活性关系的初步测试是用四种天然的卵磷脂和三种类似物进行的。进一步的测定表明,合成的天然产物异戊二醇可以显着减少肝癌干细胞的数量并降低HepG2细胞形成肿瘤球的能力。