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Paper | Regular issue | Vol 68, No. 11, 2006, pp.2335-2342
Published online, 12th September, 2006
DOI: 10.3987/COM-06-10858
Medicinal Foodstuffs. XXXII. Novel Sesquiterpene Glycoside Sulfate, Fukinoside A, with Antiallergic Activity from Japanese Butterbur (Petasites japonicus)

Masayuki Yoshikawa,* Toshio Morikawa, Junji Tanaka, and Hiroshi Shimoda

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


Novel sesquiterpene glycoside sulfate, fukinoside A, was isolated as the potassium salt from the aerial parts of Petasites japonicus. The absolute sterostructure of fukinoside A was elucidated on the basis of chemical and physicochemical evidence. In addition, fukinoside A was found to inhibit release of β-hexosaminidase, as a marker of antigen-induced degranulation, in RBL-2H3 cells.