Medicinal flowers. XXII. Structures of chakasaponins V and VI, chakanoside I, and chakaflavonoside A from flower buds of Chinese tea plant (Camellia sinensis).
نویسندگان
چکیده
Two acylated oleanane-type triterpene oligoglycosides, chakasaponins V and VI, an aromatic glycoside, chakanoside I, and an acylated flavonol oligoglycoside, chakaflavonoside A, were isolated from the flower buds of Chinese tea plant [Camellia sinensis (L.) O. KUNTZE]. The chemical structures of those new glycosides were elucidated on the basis of chemical and physicochemical evidence.
منابع مشابه
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Acylated oleanane-type triterpene saponins, namely chakasaponins I (1) and II (2), floratheasaponin A (3), and their analogs, together with catechins-including (-)-epigallocatechin 3-O-gallate (4), flavonoids, and caffeine-have been isolated as characteristic functional constituents from the extracts of "tea flower", the flower buds of Camellia sinensis (Theaceae), which have common components ...
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ورودعنوان ژورنال:
- Chemical & pharmaceutical bulletin
دوره 56 9 شماره
صفحات -
تاریخ انتشار 2008