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Note | Regular issue | Vol 78, No. 4, 2009, pp.1023-1029
Published online, 2nd December, 2008
DOI: 10.3987/COM-08-11568
Medicinal Flowers. XXV. Structures of Floratheasaponin J and Chakanoside II from Japanese Tea Flower, Flower Buds of Camellia sinensis

Sachiko Sugimoto, Masayuki Yoshikawa,* Seikou Nakamura, and Hisashi Matsuda

*Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8412, Japan


Following the investigation of floratheasaponins A, B, and C, a new acylated oleanane-type triterpene saponin termed floratheasaponin J and an aromatic glycoside called chakanoside II were isolated from the flower buds of Japanese tea plant (Camellia sinensis). The structures of the new glycosides were determined by chemical and physicochemical evidence.