Abstract
Seventeen compounds were isolated and identified from the ethyl acetate part of Zanthoxylum bungeanum Maxim., including one new compound 18-acetyloxyneocryptotanshinone (1) and 16 known compounds (2–17). Their structures were elucidated by extensive spectroscopy. The absolute configuration of 1 was confirmed by electronic circular dichroism (ECD). All compounds were evaluated for the inhibition of LPS-induced nitric oxide (NO) production in RAW264.7 macrophages, of which 1 and 10 exhibited the most significant inhibitory effect, with IC50 of 17.29 and 10.27 μM, respectively.
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