LIU Jian-qun, PAN Jing-hang, ZHANG Rui, et al. Studies on Chemical Constituents of Grewia biloba Ⅱ[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(5): 87-89.
LIU Jian-qun, PAN Jing-hang, ZHANG Rui, et al. Studies on Chemical Constituents of Grewia biloba Ⅱ[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(5): 87-89. DOI: 10.13422/j.cnki.syfjx.2011.05.051.
扁担杆的化学成分Ⅱ
摘要
目的:研究扁担杆Grewia biloba根皮的化学成分。方法:采用反复硅胶和凝胶柱等色谱分离纯化
根据多种波谱技术鉴定化合物结构。结果:分离鉴定了4个化合物
分别为7-乙氧基槲皮素(1)
1α
3β
23-trihydroxyolean-12-en-28-oic acid(2)
6-C-glucosyl-quercetin(3)
6-C-glucosyl-3
3′
4′
5
7-pentahydroxyflavanone(4)。结论:化合物1为新的天然产物
其余化合物均为首次从该属植物中分离得到。
Abstract
Objective:To investigate the chemical constituents of Grewia biloba.Method:Individual con-stituents
isolated and repeatedly purified on silica gel and Sephadex LH-20 column chromatography
were identified by physicochemical constants and structurally elucidated by spectral methods.Result:Four compounds were isolated and identified as:3′
4′
5
7-tetrahydroxy-7-ethoxyflavone(1)
1α
3β
23-trihydroxyolean-12-en-28-oic acid(2)
6-C-glucosyl-quercetin(3)
6-C-glucosyl-3
3′
4′
5
7-pentahydroxyflavanone(4).Conclusion:Compound 1 is a new natural product
others are isolated from the genus Grewia for the first time.