RESUMEN
Using various chromatographic methods, four new phenolics, coroffesters A-D (1 - 4) were isolated from the fruit of Cornus officinalis (Cornaceae). Their structures (1 - 4) were elucidated unambiguously by spectroscopic methods such as one- and two-dimensional nuclear magnetic resonance (1 D- and 2 D-NMR) spectroscopy and high-resolution electrospray ionization mass spectrometry (HR-ESI-MS). The anti-inflammatory activity of the isolated compounds was also evaluated. All compounds (1 - 4) showed moderate inhibitory activity against NO production in a dose-dependent manner in RAW 264.7 cells.
Asunto(s)
Cornaceae , Cornus , Animales , Antiinflamatorios/análisis , Antiinflamatorios/farmacología , Cornus/química , Frutas/química , Ratones , Fenoles/análisis , Fenoles/farmacología , Células RAW 264.7RESUMEN
Bio-guided fractionation of the 70% ethanol extract of Belamcanda chinensis (L.) DC. revealed four new compounds, including 6â³-O-acetylembinin (5), 3â³-O-acetylembinin (6), irigenin 3'-O-ß-glucopyranoside (8), and 2'-acetyl-1,3-O-diferuloylsucrose (9), along with five known compounds (1-4, 7). Their chemical structures were determined using extensive NMR data, mass spectroscopy, and comparison with published literature. Among the isolates, compounds 1 and 4-7 achieved good regulation of the growth and proliferation of vascular smooth muscle cells.