白粉藤的木脂素和三萜成分

从白粉藤（Cissus repens Lank）地上部分分离得到5个木脂素和8个三萜，其中一个木脂素是新化合物，它的结构通过波谱分析和碱水解的方法鉴定为：（＋）-异落叶松树脂醇-9′-（2-对-香豆酰）-O-β-D-吡喃木糖苷（1）。其余化合物分别是：（＋）-异落叶松树脂醇-9′-O-β-D-吡喃木糖苷（2），（＋）-Lyoniside（3），（—）-开环异落叶松树脂醇-9-O-β-D-吡喃木糖苷（4），（7′R，8′S）-4′-hydroxy-3′，5-dimethoxy-7，8′-dihydrobenzofuran-1-propanolneolignan-9′-O-β-D-xylopyranoside（5），木栓酮（6），表木栓醇（7），蒲公英赛醇乙酸酯（8），熊果酸（9），2α-羟基乌索酸（10），积雪草酸（11），Niga-ichigoside F1（12），羽扇豆醇（13）。这些化合物都是首次从该植物中分离得到。

Lignans and Triterpenoids from Cissus repens (Vitaceae)

Five lignans and eight triterpenoids were isolated from the aerial parts of Cissus repens. Among them, a lignan, ( + )-isolariciresinol-9'-(2-p-coumaric )-O-β-D-xylopyranoside (1), was new and its structure was established onthe basis of spectroscopic methods and alkaline hydrolysis. Other compounds, ( + )-isolariciresinol-9'-O-β-D-xylopyranoside (2), ( + )-lyoniside (3), (-)-secoisolariciresinol-9-O-β-D-xylopyranoside (4), (7'R, 8'S )-4'-hydroxy-3',5-dimethoxy-7', 8'-dihydrobenzofuran- 1-propanolneolignan-9'- O-β- D-xylopyranoside (5), friedelin (6), epifriedelanol (7), taraxerol-3β-acetate (8), ursolic acid (9), 2α-hydroxyursolic acid (10), asiatic acid (11), niga-ichigoside F1 (12) and lupeol (13), were found in the plant for the first time.