Chemical structures of xanthyletin (top) and seselin
Pyranocoumarins are a class of chemical compounds that have a core structure that consists of a pyran ring fused to a coumarin. As phytochemicals, pyranocoumarins are uncommon and found mainly the plant families Apiaceae and Rutaceae.[1] For example, Citrus sinensis and Citrus limonia are sources of xanthyletin and seselin.[2]
In the biosyntheses of pyranocoumarins, the pyran ring is formed via the methylerythritol phosphate pathway and the coumarin is derived from the shikimate pathway.[2]
^ abAmaral, Jéssica C.; Da Silva, Michelli M.; Da Silva, M. Fátima G. F.; Alves, Thayana C.; Ferreira, A. Gilberto; Forim, Moacir R.; Fernandes, João B.; Pina, Edieidia S.; Lopes, Adriana A.; Pereira, Ana M. S.; Novelli, Valdenice M. (2020). "Advances in the Biosynthesis of Pyranocoumarins: Isolation and 13C-Incorporation Analysis by High-Performance Liquid Chromatography–Ultraviolet–Solid-Phase Extraction–Nuclear Magnetic Resonance Data". Journal of Natural Products. 83 (5): 1409–1415. doi:10.1021/acs.jnatprod.9b00607. PMID 32372647. S2CID 218519965.
Pyranocoumarins are a class of chemical compounds that have a core structure that consists of a pyran ring fused to a coumarin. As phytochemicals, pyranocoumarins...
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