[Studies on chemical constituents from Pteris multifida].
Fjalë kyçe
Abstrakt
OBJECTIVE
To investigate the chemical constituents of Pteris multifida.
METHODS
All compounds were isolated and purified by normal column chromatography, paper thin layer chromatography and sephadex chromatography. The chemical structures were mainly elucidated by ESI mass and NMR spectra.
RESULTS
Seven compounds were isolated from the methanol extracts of Pteris multifida. In addition to a glycoside of sesquiterpene pterosin C-3-O-beta-D-glucoside(1), six flavonoids were isolated from S. barbata as fouows: apigenin(2), luteolin(3), apigenin-7-O-beta-D-glucoside(4), apigenin-7-O-beta-D-glucosyl-4'-O-alpha-L-rhanrnoside(5), apigenin-4'-O-alpha-L-rhanrnoside(6) and luteolin-7-O-beta-D-glucoside(7).
CONCLUSIONS
Compound(2), (3) and (5), (6) are isolated from Pteris multifida for the first time.
