Abstract

The total synthesis of (+)-(30S)-bullanin, a highly cytotoxic annonaceous acetogenin, was effected by a convergent approach in which the key core bis-2,2′-tetrahydrofuran stereocenters were introduced through a combination of Sharpless asymmetric dihydroxylation and S E2′ additions of oxygenated nonracemic allylic stannane and indium reagents to γ-oxygenated aldehydes.

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