Chemotaxonomy of the genus Nuxia (Buddlejaceae)

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    Abstract

    An investigation of two species of Nuxia (Buddlejaceae) showed that this genus is characterised by the presence of the eight-carbon iridoid glucoside unedoside and/or its derivatives. From N. floribunda was isolated unedoside, nuxioside (6-O-a-L-rhamnopyranosyl-unedoside) and 2''-acetyl-3''-cinnamoyl-nuxioside, while from N. oppositifolia was obtained 2''-acetyl-3''-benzoyl-nuxioside. Verbascoside was isolated from both plants. The biosynthesis of unedoside in N. floribunda was investigated and deoxyloganic acid was shown to be a precursor. The taxonomic position of Nuxia and Buddlejaceae is discussed.
    Original languageEnglish
    Title of host publicationStudies in Plant Science 6. Advances in Plant Glycosides, Chemistry & Biology
    PublisherElsevier
    Publication date1999
    Pages379-382
    Publication statusPublished - 1999

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