One new canthinone glycoside (), together with six known compounds (-) including three lignans (-), two coumarins (- and one phenol ( was isolated from the root barks of . The structure of new compound was established by the interpretation of UV, IR, MS and NMR data, while its absolute configuration was determined by acid hydrolysis and GIAO NMR calculations with DP4+ probability analysis. The inhibitory effects of all compounds on Nitric oxide (NO) production were investigated in lipopolysaccharide (LPS)-induced RAW 264.7 cells. Results showed that compounds and displayed NO production inhibitory activity with IC values of 30.1 and 15.3 M, respectively.
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A new canthinone glycoside isolated from the root barks of with NO inhibitory activity.
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