Abstract
A novel anti-HIV alkaloid, drymaritin (1), and a new C-glycoside flavonoid, diandraflavone (2), along with eight known compounds, torosaflavone A, isovitexin, spinasterol beta-d-glycoside, p-hydroxybenzoic acid, p-hydroxybenzaldehyde, cis-p-coumarate, methyl 5-hydroxy-4-oxopentanoate, and glycerol-alpha-lignocerate, were isolated from Drymaria diandra. Drymaritin (1) exhibited anti-HIV effects in H9 lymphocytes with an EC(50) value of 0.699 microg/mL and a TI of 20.6. Compound 2 showed significantly selective inhibition on superoxide anion generation from human neutrophils stimulated by fMLP/CB with an IC(50) value of 10.0 microg/mL.
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