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


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


RESULTS
Seven compounds were isolated. Their structures were established as jujuboside E (1), jujuboside B (2), jujuboside A (3), betulic acid (4), stearic acid (5), sucrose (6) and inosine (7).


CONCLUSIONS
Compound 1 is a new compound named jujuboside E. Compounds 5, 6, 7 were isolated for the first time from this plant.
Bai
Yan-jing
YJ
Division of Natural Medical Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100083, China.
Cheng
Gong
G
Tao
Jing
J
Wang
Bin
B
Zhao
Yu-ying
YY
Liu
Yi
Y
Ma
Li-bin
LB
Tu
Guang-zhong
GZ
D007288:Inosine / Q000737:chemistry / Q000302:isolation & purification; D008968:Molecular Conformation; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D012639:Seeds / Q000737:chemistry; D013229:Stearic Acids / Q000737:chemistry / Q000302:isolation & purification; D013395:Sucrose / Q000737:chemistry / Q000302:isolation & purification; D031957:Ziziphus / Q000737:chemistry*
D012503:Saponins; D013229:Stearic Acids; C489702:jujuboside E; C031183:stearic acid; C087808:jujuboside A; D013395:Sucrose; D007288:Inosine