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. 2024 Mar 26;15:2647. doi: 10.1038/s41467-024-46896-3

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© The Author(s) 2024

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Fig. 2 — The key disconnections involve Cu-catalyzed enantioselective silicon-tethered intramolecular Diels–Alder cycloaddition to construct C/D rings and a tandem Prins cyclization/Cycloetherification sequence to construct rings E/B/A, respectively.