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  • Title: Structural characterization and antioxidative activity of lancifonins: unique nortriterpenoids from Schisandra lancifolia.
    Author: Shi YM, Yang J, Xu L, Li XN, Shang SZ, Cao P, Xiao WL, Sun HD.
    Journal: Org Lett; 2014 Mar 07; 16(5):1370-3. PubMed ID: 24552471.
    Abstract:
    Six unique nortriterpenoids, lancifonins A-F (1-6), were isolated from Schisandra lancifolia. Their absolute configurations were determined by X-ray diffraction and ECD calculation. The conformational analysis of 1 was performed due to the unanticipated changes of Cotton effects in its ECD spectrum. Compounds 5 and 6 possess a unique 7/7 fused carbocyclic core with an internal ester bridge between C-9 and C-14, and 5 exhibited protective activity against H2O2-induced oxidative damage on Caco-2 cells.
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