Assignment of Absolute Stereochemistry and Total Synthesis of (−)-Spongidepsin
作者:Arun K. Ghosh、Xiaoming Xu
DOI:10.1021/ol049292p
日期:2004.6.1
enantioselective total synthesis of (-)-spongidepsin (2) and elucidation of the absolute stereochemistry of its four stereocenters are described. Spongidepsin (2), a 13-membered depsipeptide isolated from the Vanuatu marine sponge Spongia sp., has shown potent antitumor properties against a variety of NCI tumor cell lines. Our synthesis is convergent, and the absolute stereochemistry of four of the five