Bioorganic Chemistry 2019-Dec
Hypoglycemic triterpenoid glycosides from Cyclocarya paliurus (Sweet Tea Tree).
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概要
Four new rarely occurred seco-dammarane triterpenoid glycosides (1-4) and four new dammarane triterpenoid glycosides (5-8), along with four known triterpenoids (9-12), were isolated from the 70% ethanol extract of the leaves of Cyclocarya paliurus (family Juglandaceae). Their structures were elucidated by extensive spectroscopic methods, including 1D/2D NMR and HRESIMS data, together with chemical analysis and DFT GIAO 13C NMR calculation. In bioassay, compounds 5-8 significantly increased glucose consumption in 3T3-L1 adipocytes, which could be the bioactive constituents for the anti-diabetes effect of the traditional usage of C. paliurus.