Total Synthesis and Cytotoxicity Studies of a Cyclic Depsipeptide with Proposed Structure of Palau'amide
作者:Bin Zou、Kai Long、Dawei Ma
DOI:10.1021/ol051685g
日期:2005.9.1
[structure: see text] Total synthesis of a cyclic depsipeptide with proposed structure of palau'amide is achieved, which features a stereoselective elaboration of its 5,7-dihydroxy-2,6-dimethyldodec-2-en-11-ynoic acid unit. The synthetic compound has potent cytotoxicity against three tumor cell lines but different rotation and NMR data compared to those reported for palau'amide, which implies that
[结构:见正文]实现了具有拟议的帕劳酰胺结构的环状二肽的全合成,其特征在于其5,7-二羟基-2,6-二甲基十二烷基-2-en-11-炔酸单元的立体选择性修饰。合成的化合物对三种肿瘤细胞系具有强大的细胞毒性,但是与报道的帕劳酰胺相比,具有不同的旋转和NMR数据,这表明其构象接近于帕劳酰胺的构象,但帕劳酰胺中的某些立体化学却被错误分配了。