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1. Chemical constituents from Maackia amurensis and their anti-inflammatory and antioxidant activities

Author

Chen, Xian-Hua, Yang, Cong, Mo, You-Sheng, and Wang, Qi

Abstract

A new flavonoid named (2S)-7,4′-dimethoxyl-6-(2″,3″-epoxy-3″-methylbutyl)flavanone (1), along with five known compounds (2–6), were isolated from the EtOAc-soluble extract of the stem bark of Maackia amurensis. Their structures were elucidated on the basis of spectroscopic methods. All compounds were evaluated for anti-inflammatory and antioxidant activities in vitro. Among them, compound 5 showed the highest inhibitory activity on NO production in RAW264.7 cells stimulated by LPS with IC50 value of 59.0 ± 1.5 µM. Meanwhile, compounds 1–6 exhibited varying antioxidant activities through DPPH, ABTS free radical-scavenging and FRAP assays.

Published
2021
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