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Taking advantage of a 6π electrocyclization–aromatization strategy, we accomplished the first and asymmetric total synthesis of rubriflordilactone B, a heptacyclic Schisandraceae bisnortriterpenoid featuring a tetrasubstituted arene moiety. The left‐hand fragment was accessed through a chiral‐pool‐based route, and linked to the right‐hand fragment by a Sonogashira coupling. The cis geometry of the...
The total syntheses of ileabethoxazole, pseudopteroxazole, and seco‐pseudopteroxazole, three antituberculosis diterpenoids that had been isolated from Pseudopterogorgia elisabethae, were accomplished in a collective fashion. A cascade alkyne carbopalladation/Stille reaction was exploited to construct a triene precursor with suitable geometry. A fully substituted arene was then assembled through a...
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