Roxaticin has been synthesized in a convergent manner from the polyol segment 2, which was prepared by the Julia coupling reaction of sulfone 4 and aldehyde 8, and the polyene phosphonate 3. The cyclization was achieved by macrolactonization.
Roxaticin has been synthesized in a convergent manner. The polyol and polyene fragments were coupled by Horner-Emmons reaction and the cyclization was achieved by macrolactonization.