A novel pregnane glycoside, biondianoside E, was isolated from the roots of Biondia chinensis. By the spectroscopic and chemical methods, this structure was elucidated as 3B, 5B, 14B, 205, 21-pentahydroxypregnane 3-O-...A novel pregnane glycoside, biondianoside E, was isolated from the roots of Biondia chinensis. By the spectroscopic and chemical methods, this structure was elucidated as 3B, 5B, 14B, 205, 21-pentahydroxypregnane 3-O-B-D-glucopyranosyl-(1-4)-B-D-cymaropyranoside .展开更多
文摘A novel pregnane glycoside, biondianoside E, was isolated from the roots of Biondia chinensis. By the spectroscopic and chemical methods, this structure was elucidated as 3B, 5B, 14B, 205, 21-pentahydroxypregnane 3-O-B-D-glucopyranosyl-(1-4)-B-D-cymaropyranoside .
