4.7 Article

Anti-Coxsackie Virus B3 Norsesquiterpenoids from the Roots of Phyllanthus emblica

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JOURNAL OF NATURAL PRODUCTS
卷 72, 期 5, 页码 969-972

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AMER CHEMICAL SOC
DOI: 10.1021/np800792d

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  1. NSFC [U0632010]
  2. Chinese Academy of Sciences [O807B11211, O807E21211]

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Three new norsesquiterpenoid glycosides, 4'-hydroxyphyllaemblicin B (1) and phyllaemblicins E (2) and F (3), were isolated from the roots of Phyllanthus emblica, together with three known compounds, phyllaemblic acid (4), phyllaemblicin B (5), and phyllaemblicin C (6). Of these, 3 is a new norsesquiterpenoid dimer. The structures of 1-3 were established by spectroscopic data information and by acidic hydrolysis. The isolated compounds, together with two other known analogues, phyllaemblic acid methyl ester (7) and phyllaemblicin A (8), were evaluated for their antiviral activity toward coxsackie virus B3 (CVB3) by an in vitro cytopathic effect inhibitory assay. Compounds 5-7 exhibited strong anti-CVB3 activity.

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