Natural Product Research 2019-May
Two new compounds from Artemisia ordosica Krasch.
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Two new compounds, named ordosacid A (5) and ordosacid B (6), along with four known compounds: 3,4-dihydroxybenzaldehyde (1), p-hydroxybenzoic acid (2), p-hydroxycinnamic acid (3) and o-hydroxycinnamic acid (4), were isolated from the ethyl acetate extract of Artemisia ordosica Krasch. The structures of new compounds were elucidated on the basis of spectroscopic methods including UV, IR, ESI-MS, 1D NMR, 2D NMR, HR-ESI-MS and modified Mosher's method.