This work was supported by grants from the Natural Science Foundation of China(No.21132009);the National Science and Technology Project of China(No.2012ZX09301002-002);PCSIRT(No.IRT1007).
Ten serratene-type triterpenoids including two new ones,named 3β-hydroxyserrat-14-en-21β-yl-formate(1)and 21β-hydroxyserrat-14-en-3β-yl-formate(2),were isolated from Lycopodium japonicum Thunb.Their structures wer...
Two new tirucallane-type triterpenoids, 3a,24β',25-trihydroxy-21,21-dimethoxy-23-oxo-tirucall-7-ene (I) and 3a-acetoxy-21fl-methoxy-24,25,26,27-tetranortirucall-7-ene-23(21)-lactone (2), were isolated from the...
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Thirteen triterpenoids, including three new ones, miyoshianols A (1), B (2) and C (3), were isolated from Huperzia miyoshiana . The structures of these new compounds were established as 3 O dihydroferuloyltoh...
Melanin A, a new pentacyclic triterpene of ursane series isolated from the aerial parts of Echinops Gemini, is elucidated structurally as 1 on the basis of 1D and 2D NMR spectroscopic studies.