Guo X L, Wang T J, Bian B L
School of Pharmaceutical Sciences, Beijing Medical University, Beijing 100083.
Yao Xue Xue Bao. 1997 Jul;32(7):524-9.
A new triterpenoid saponin named gylongiposide I was isolated from the aerial parts of Gynostemma longipes C.Y. Wu. On the basis of chemical evidence and spectral data the structure of gylongiposide I was elucidated as 19-oxo-3 beta, 20(S), 21-trihydroxydammar-24-ene-3-O-([alpha-L-rhamnopyranosy(1-->2)] [beta-D-xylpyranosyl(1-->3)]) alpha-L-arabinopyranoside (G). The known compounds were identified as gypenoside XLIX(F) and ginsenoside Rb1(A).
从长梗绞股蓝的地上部分分离得到一种新的三萜皂苷，命名为绞股蓝苷I。基于化学证据和光谱数据，确定绞股蓝苷I的结构为19-氧代-3β，20（S），21-三羟基达玛-24-烯-3-O-（[α-L-鼠李吡喃糖基（1→2）][β-D-木吡喃糖基（1→3）]）α-L-阿拉伯吡喃糖苷（G）。已知化合物被鉴定为绞股蓝皂苷XLIX（F）和人参皂苷Rb1（A）。
