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We have achieved the first total synthesis of pallamolides A−E. Of these compounds, pallamolides B−E possess intriguing tetracyclic skeletons with novel intramolecular transesterifications. Key transformations include highly diastereoselective sequential Michael addition reactions to construct the bicyclo[2.2.2]octane core with the simultaneous generation of two quaternary carbon centers, a one‐pot...
The first total synthesis of speradine C has been achieved in only ten steps from a commercially available 4‐bromoindole. Salient features of the work are the formation of four rings through three cyclizations, namely a bioinspired [3+2] annulation to form the C/D rings, an NCS‐mediated oxidation to construct the E ring, and a Ru‐catalyzed ketohydroxylation to assemble the F ring. This work highlights...
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