Abstract
A phytochemical study on the aerial parts of Diplopterygium chinense (Rosenstock) De Vol yielded fifteen compounds consisting of five steroids (1–3, 8, and 9), two diterpenoids (4 and 5), two triterpenoids (6 and 7), three flavone glycosides (10, 11, and 13), and three flavonol glycosides (12, 14, and 15). Their structures were identified according to NMR, MS, ORD, and CD data. This is the first study on the chemical constituents of D. chinense. Compounds 1–4, 6–8, 11, 12, 14, and 15 were first found from the genus Diplopterygium, while compounds 7, 11, 14, and 15 were first reported from the family Gleicheniaceae. Furthermore, the chemotaxonomic significance of these compounds was discussed.
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