A new fatty acid methyl ester (1) was isolated from an EtOH extract of Fissistigma oldhamii. It structures was elucidated by a combination of HR-ESI-MS, 1D NMR, 2D NMR, UV, and IR spectroscopic data. The inhibitory effect of compound 1 on the proliferation of primary synovial cells was evaluated. As a result, it showed inhibitory effect on the proliferation of synoviocytes, with IC₅₀ value of 38.6 μmol·L⁻¹.
Keywords: Annonaceae; Fissistigma oldhamii; fatty acid methyl ester; synoviocytes.
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