Abstract
Two new oleanane triterpenoid saponins, bodiniosides Q (1) and R (2), along with five known saponins, niga-ichigoside F1 (3), 3-O-[β-D-glucopyranosyl]-28-O-[α-L-rhamnopyranosyl -(1→2)-β-D-glucopyranosyl] arjunolic acid (4), asiaticoside E (5), sericoside (6), and bodinioside E (7), were isolated from the aerial parts of Elsholtzia bodinieri. The structures of 1 and 2 were characterized by spectroscopic techniques and chemical evidence as 3-O-β-D- xylopyranosyl-2α, 23-dihydroxy-olean-12-en-28-oic acid 28-O-α-L-rhamnopyranosyl- (1→2)-β-D-glucopyranoside (1) and 3-O-β-D-xylopyranosyl-2α, 23-dihydroxy-olean-12-en-28-oic acid 28-O-[β-D-glucopyranosyl-(1→4)-α-L-rhamnopyranosyl -(1→2)]-β-D-glucopyranoside (2). Compounds 1, 3, and 5 exhibited weak anti-influenza activity against strain A/WSN/33/2009 (H1N1), with inhibition rate of 11.63%, 17.01%, and 16.98%, respectively.
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