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目的:对点地梅的化学成分进行研究。方法:运用多种色谱方法进行分离纯化,根据理化性质和波谱数据鉴定化合物的结构。结果:从点地梅95%乙醇提取物的正丁醇萃取部分中分离得到10个化合物,分别签定为山柰酚3-O-(3-O-乙酰基)-α-L-吡喃鼠李糖苷(1),山柰酚3-O-(2-O-乙酰基)-α-L-吡喃鼠李糖苷(2),山柰酚7-O-α-L-吡喃鼠李糖苷(3),山柰酚3-O-α-L-吡喃鼠李糖苷(4),山柰酚3-O-β-D-吡喃葡萄糖苷(5),山柰酚3-O-(3-O-乙酰基)-α-L-吡喃鼠李糖基-7-O-α-L-吡喃鼠李糖苷(6),山柰酚3-O-(4-O-乙酰基)-α-L-吡喃鼠李糖基-7-O-α-L-吡喃鼠李糖苷(7),槲皮素3-O-α-L-吡喃鼠李糖苷(8),槲皮素3-O-β-D-吡喃葡萄糖苷(9),杨梅素3-O-β-D-吡喃葡萄糖苷(10)。结论:所有化合物均为首次从该植物中分离得到。
Objective: To study the chemical constituents of Rhodiola. Methods: Various chromatographic methods were used for the isolation and purification. The structures of the compounds were identified based on their physicochemical properties and spectral data. Results: Ten compounds were isolated from the n-butanol extract of 95% ethanol extract of Rhizoma Dioscorea and identified as 3-O- (3-O-acetyl) -α-L-pyran Rhamnoside (1), kaempferol 3-O- (2-O-acetyl) -alpha-L-rhamnopyranoside (3), kaempferol 3-O-α-L-rhamnopyranoside (4), kaempferol 3-O-β-D-glucopyranoside (5) O- (3-O-acetyl) -alpha-L-rhamnopyranosyl-7- O -alpha-L-rhamnopyranoside (6), kaempferol 3- -acetyl) -alpha-L-rhamnopyranosyl-7- O -alpha-L-rhamnopyranoside (7), quercetin 3-O-alpha-L-rhamnopyranoside 8), quercetin 3-O-β-D-glucopyranoside (9), myricetin 3-O-β-D-glucopyranoside (10). Conclusion: All the compounds were isolated from this plant for the first time.