Total Synthesis and Assignment of the Side Chain Stereochemistry of LI-F04a: An Antimicrobial Cyclic Depsipeptide
作者:James R. Cochrane、Christopher S. P. McErlean、Katrina A. Jolliffe
DOI:10.1021/ol101254m
日期:2010.8.6
The total synthesis of the potent antifungal and antibiotic cyclic depsipeptide LI-F04a and its sidechain epimer was accomplished using macrolactonization to assemble the cyclic peptide core, followed by attachment of the 15-guanidino-3-hydroxypentadecanoyl (GHPD) sidechain. The sidechain was assembled by Yamaguchi−Hirao alkylation of both enantiomers of a chiral epoxide to provide a pair of enantiomeric