Abstract
AbstractThe structural identity of pethybrene was confirmed as theoretically proposed 6‐5‐5 tricyclic structure through total syntheses of two putative structures. The originally proposed structure 1 was synthesized in 13 steps via Intramolecular Pauson‐Khand reaction to form the triquinane skeleton and the newly proposed structure from a theoretical study 2 was obtained from a known [2+2] cycloaddition product in 3 steps.
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