JOURNAL 1757
Records of Natural Products
VOLUME & ISSUE
Year: 2021 Issue: 3 May-June
Year: 2021 Issue: 3 May-June
PAGES
p.213 - 218
p.213 - 218
STATISTICS
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Viewed 1804 times.
GRAPHICAL ABSTRACT
ABSTRACT
A chemical investigation was carried out on a crinoid Colobometra perspinosa collected from Hengchun Peninsula in the South China Sea, which led to the isolation of five angular naphthopyrones (1–5), including one new metabolite, 8-hydroxy-5,6,10-trimethoxy-2-pentyl-4H-naphtho[1,2-b]pyran-4-one (1). Their structures were assigned based on spectroscopic methods, including UV, HRESIMS, 1D- and 2D-NMR spectra. The anti-inflammatory activity of the isolated compounds was evaluated and compound 5 was found to inhibit the accumulation of the pro-inflammatory iNOS protein in LPS-stimulated RAW264.7 macrophages.
KEYWORDS- angular naphthopyrone
- crinoid
- Colobometra perspinosa
- iNOS
