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  • Title: Triterpenoids from Schisandra rubriflora.
    Author: Xiao WL, Li XL, Wang RR, Yang LM, Li LM, Huang SX, Pu JX, Zheng YT, Li RT, Sun HD.
    Journal: J Nat Prod; 2007 Jun; 70(6):1056-9. PubMed ID: 17489633.
    Abstract:
    Investigation of an organic extract of Schisandra rubriflora led to the isolation of three new highly oxygenated nortriterpenoids, named rubriflorins A-C (1-3), together with six related known compounds (4-9). Their structures were elucidated by spectroscopic evidence. Compounds 1-3 feature the opening of ring A compared with related known nortriterpenoids isolated from the genus Schisandra and showed anti-HIV-1 activities with EC50 values of 10.0, 16.2, and 81.3 microg/mL, respectively.
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