Abstract:
:Two new compounds, identified as 3-(2-hydroxybenzyl)-6,8-dimethoxy-4H-chromen-4-one (1), named oleracone J and 3-(2-hydroxybenzyl)-6,8-dimethoxychroman-4-one (2), named oleracone K, were isolated from Portulaca oleracea L., and the structures of them were determined by spectroscopy, including one-dimensional and two-dimensional nuclear magnetic resonance, high-resolution electrospray ionisation time-of-flight mass spectrometry. The two compounds have scavenging activities in 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical quenching assay, with IC50 values of 18.34, 23.92 μM, and anticholinesterase activities with IC50 values of 59.08, 67.89 μM, respectively.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Duan Y,Ying Z,Zhang M,Ying X,Yang Gdoi
10.1080/14786419.2020.1815742subject
Has Abstractpub_date
2020-09-03 00:00:00pages
1-9eissn
1478-6419issn
1478-6427pub_type
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