Journal of Asian Natural Products Research
Antioxidant phenolic glucosides from Gentiana piasezkii.
Csak regisztrált felhasználók fordíthatnak cikkeket
Belépés Regisztrálás
A hivatkozás a vágólapra kerül
Kulcsszavak
Absztrakt
An extract of Gentiana piasezkii afforded a new arbutin derivative 6'-O-vanilloylarbutin (1) and a new flavone-C-glucoside 7-O-feruloylorientin (2), together with four known flavonoids lutonarin (3), saponarin (4), isoorient (5) and luteolin (6). Their structures were established based on spectroscopic methods including 2D NMR (COSY and gHMBC) techniques. Compounds 1, 2, 5 and 6 were evaluated for the antioxidant activity in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay system.