Chemical constituents of Ziziphus plants: research advances
The genus of Ziziphus,the most economic genus in the family of Rhamnaceae,contains about 170 species.So far,more than 200 kinds of compounds including triterpenoids,alkaloids,flavonoids,nucleosides,sacharides and other chemical ingredients have been characterized or isolated from the plants of Ziziphus.Among them,triterpenoids mainly include the free pentacyclic triterpenes and the triterpenoid saponins with the the dammarane-type aglycone ; for the flavonoids,besides the O-glycosides constituents,C-glycosides constituents with C-6 or C-8 position replaced by sacharides moiety were also found; alkaloids could be further divided as cyclic peptide alkaloids and isoquinoline alkaloids.In this paper,the chemical constituents found in Ziziphus in recent years are summarized,in order to provide reference for their development and utilization.
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