Ono Masateru, Takamura Chika, Sugita Fumie, Masuoka Chikako, Yoshimitsu Hitoshi, Ikeda Tsuyoshi, Nohara Toshihiro
School of Agriculture, Kyushu Tokai University, Kumamoto, Japan.
Chem Pharm Bull (Tokyo). 2007 Apr;55(4):551-6. doi: 10.1248/cpb.55.551.
Two new steroid glycosides, named trikamsterosides A and B, and a new sesquiterpenoid glycoside named trikamsesuquiside A were isolated from the underground parts of Trillium kamtschaticum PALL. along with 18 known compounds comprising 12 steroids, one sesquiterpenoid glycoside, one phenylpropanoid, one flavonoid glycoside, and three phenylpropanoid sucrose esters. Their chemical structures were determined on the basis of spectroscopic data and chemical evidence. Among them, one phenylpropanoid sucrose ester showed almost the same radical-scavenging effect on 1,1-diphenyl-2-picrylhydrazyl as that of alpha-tocopherol.
