[Structure identification of jujuboside D].
OBJECTIVE
To study the chemical constituents of Ziziphus jujuba Mill var. Spinosa (Bunge) Hu ex. H. F. Chou.


METHODS
To separate the constituents by using various kinds of chromatography and identify their structures on the basis of spectral analysis.


RESULTS
Five compounds were isolated and their structures were established as jujuboside D (1), jujuboside A (2), 5,7,4'-trihydroxyflavonol-3-O-beta-D-rhamnopyranosyl-(1-->6)-beta-D-glucopyranoside (3), 6'''-coumaroylspinosin (4) and phenylalanine (5).


CONCLUSIONS
Compound 1 is a new compound named jujuboside D, 4 is reported as rotamer for the first time, 3 and 5 isolated from this plant for the first time.
Liu
Qin-xiang
QX
Division of Natural Medical Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100083, China.
Wang
Bin
B
Liang
Hong
H
Zhao
Yu-ying
YY
Liu
Meng-jun
MJ
D008968:Molecular Conformation; D015394:Molecular Structure; D010649:Phenylalanine / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D012639:Seeds / Q000737:chemistry; D031957:Ziziphus / Q000737:chemistry*
D012503:Saponins; C496395:jujuboside D; D010649:Phenylalanine; C087808:jujuboside A