Miyabeacin: A new cyclodimer presents a potential role for willow in cancer therapy.

Ward, Jane, Wu, Y., Harflett, ClaudiaORCID logo, Onafuye, H., Corol, Delia, Lomax, Charlotte, Macalpine, WilliamORCID logo, Cinatl, J., Wass, M. N., Michaelis, M. and +1 more...Beale, Mike (2020) Miyabeacin: A new cyclodimer presents a potential role for willow in cancer therapy. Scientific Reports, 10. p. 6477. 10.1038/s41598-020-63349-1
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Willow (Salix spp.) is well known as a source of medicinal compounds, the most famous being salicin, the progenitor of aspirin. Here we describe the isolation, structure determination, and anti-cancer activity of a cyclodimeric salicinoid (miyabeacin) from S. miyabeana and S. dasyclados. We also show that the capability to produce such dimers is a heritable trait and how variation in structures of natural miyabeacin analogues is derived via cross-over Diels-Alder reactions from pools of ortho-quinol precursors. These transient ortho-quinols have a role in the, as yet uncharacterised, biosynthetic pathways around salicortin, the major salicinoid of many willow genotypes.


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