Abstract
Belamcanda chinensis (L.) DC is a popular ornamental and medicinal plant belonging to the Iridaceae family. Its rhizomes were used in Vietnamese traditional medicine for the treatment of inflammation and respiratory disorders, such as asthma, tonsillitis, coughing, and pharyngitis. In this study, four iridal-type triterpenoid derivatives (1–4) and four isoflavonoids (5–8) have been isolated from the methanol extract of Belamcanda chinensis roots. The structures of the isolated compounds were determined using NMR spectroscopic analysis combined with comparison with the literature and were found to be isoiridogermanal (1), iridobelamal A (2), 16-O-acetylisoiridogermanal (3), 16-O-acetyliridobelamal A (4), irigenin (5), irisflorentin (6), irilin D (7), and tectoridin (8).
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