Authors: Huw M. L. Davies , Øystein Loe , and Douglas G. Stafford
Org. Lett.,
2005, 7 (25), 5561–5563
A direct access to (±)-5-epi-10-epi-vibsanin E is described, based on three key cycloaddition steps, a rhodium-catalyzed [4 + 3] cycloaddition, a heteronuclear [4 + 2] cycloaddition, and a photochemically induced [4 + 2] cycloaddition.