Flavonoids and triterpenes isolated from Eucryphia cordifolia (Cunoniaceae). (October 2022)

• Record Type: Journal Article
• Authors: Viteri, Rafael; Giordano, Ady; Montenegro, Gloria; Zacconi, Flavia C.
• Is Part Of: Biochemical systematics and ecology. Volume 104(2022)
• Publication Date: 2022-10
• Subjects: Eucryphia cordifolia -- Cunoniaceae -- Triterpenes -- Sterols -- Flavonoids; Chemotaxonomy -- Periodicals; Biochemical variation -- Periodicals; Ecology -- Periodicals; Biochemistry -- Periodicals; Ecology -- Periodicals; Chimiotaxinomie -- Périodiques; Variation biochimique -- Périodiques; Écologie -- Périodiques; 578.012
• DOI: 10.1016/j.bse.2022.104476
• Languages: English
• ISSNs: 0305-1978

Abstract

Abstract: The phytochemical study of the leaves of Eucryphia cordifolia (Cunoniaceae) allowed for the isolation of six compounds: the triterpenes betulin (1 ) and 28-acetoxy betulin (3 ), the steroid β-sitosterol (2 ), the flavonol quercetrin (4 ), the flavanonol astilbine (5 ) and the flavanol catechin (6 ). The structures of the isolated compounds were clearly assigned through 1D and 2D-NMR, MS studies, and compared to previously described data. This is the first report on the isolation of compounds 1–4 and 6 from the genus Eucryphia . The chemotaxonomic importance of the isolated compounds within the family of Cunoniaceae-related plants is discussed. Graphical abstract: Image 1 Highlights: The phytochemical study of the leaves of Eucryphia cordifolia led to the isolation of six compounds. Structural elucidation was carried out using NMR and HR-ESIMS. Compounds 1, 2, 3 and 6 were first reported from the genus Eucryphia and the family Cunoniaceae. Compounds 4 and 5 could be used as potential chemotaxonomic markers.