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Facile [7C+1C] annulation as an efficient route to tricyclic indolizidine alkaloids

Angewandte Chemie - International Edition (2013) 52(35) 9271-9274
DOI: 10.1002/anie.201303604
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Abstract

A handle on annulation: The two alkenoyl moieties of the cyclic dithiolane are parallel to each other and enables the [7C+1C] annulation with ethyl isocyanoacetate to occur. As a result, tricyclic indolizidine alkaloids are constructed by a two-step, base-catalyzed [7C+1C] annulation/intramolecular cyclization with subsequent reduction/cyclization. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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Xu, X., Zhang, L., Liu, X., Pan, L., & Liu, Q. (2013). Facile [7C+1C] annulation as an efficient route to tricyclic indolizidine alkaloids. Angewandte Chemie - International Edition, 52(35), 9271–9274. https://doi.org/10.1002/anie.201303604

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