198955-38-3Relevant articles and documents
Total synthesis of Filipin III
Richardson, Timothy I.,Rychnovsky, Scott D.
, p. 8977 - 8996 (1999)
Filipin III (1), a polyene macrolide antibiotic, has been synthesized for the first time. The polyol chain was assembled using a stereoselective carbon-carbon bond forming strategy previously developed in our lab: a cyanohydrin acetonide alkylation and reductive decyanation sequence. The polyene segment was prepared from L-ascorbic acid. These two components were coupled using Yamaguchi's esterification, and cyclized with an intramolecular Horner-Emmons reaction to form a trisubstituted alkene. Stereoselective reduction followed by deprotection gave filipin III. This highly convergent approach to filipin III represents the first total synthesis of a methylpentaene macrolide antibiotic.