Studies toward the Total Synthesis of Gambieric Acids, Potent Antifungal Polycyclic Ethers: Convergent Synthesis of the CDEFG-Ring System
作者:Kazushi Sato、Makoto Sasaki
DOI:10.1021/ol050760k
日期:2005.6.1
[reaction: see text] A convergent synthetic route to the CDEFG-ring system of gambiericacids, potent antifungal polycyclic ether marine natural products, has been developed. The present synthesis features convergent union of the CD- and G-rings through esterification, formation of the E-ring as a lactone form, stereoselective allylation to set the C26 stereocenter, and ring-closing metathesis reaction