Isolation and structure elucidation of glycosides in n-butanol extracts from rhizome of Periploca calophylla
Guo, H-Li.; Zhou, J-Yun.
Zhongguo Zhong Yao Za Zhi 30(1): 44-46
2005
ISSN/ISBN: 1001-5302 PMID: 15714800 Document Number: 592704
Objective: To study the chemical constituents from n-butanol extracts of Periploca calophylla. Method: The constituents were isolated and purified by chromatographic technology and their structures were elucidated on the basis of physicochemical property and spectroscopic methods. Result: Eight glycosides were isolated and identified as periplocin (I), kaempferol 3-alpha-D-arabinoside (II), kaempferol 3-O-beta-D-glucoside (III), 3',4',5,7-tetrahydroxyflavanone-2(S)-3'-O-beta-D-glucopyranoside (IV), (+)-syringaresinol-4'-O-beta-D-monoglucoside (V), 1-sinapoylglucoside (VI), erigeside C (VII), 2,6-dimethoxy-4-hydroxyphenol 1-O-beta-D-glucoside (VIII). Conclusion: All the compounds were isolated for the first time from this plant.