Abstract

AbstractAn efficient eight‐step semisynthesis of strongylophorine‐2 from the abundant building block isocupressic acid is reported. The route represents the first synthetic entry into this class of natural products and provides access to six additional family members. A novel iron(III)‐mediated rearrangement–cyclization cascade and a directed photochemical sp3 C−H δ‐lactonization are the key transformations that enable concise assembly of these bioactive polycyclic meroterpenoids.

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