A new stilbene glycoside from Dryopteris sublaeta
- VernacularTitle:浅裂鳞毛蕨中的一个新二苯乙烯苷
- Author:
Weisheng FENG
;
Xinwei CAO
;
Haixue KUANG
;
Xiaoke ZHENG
- Publication Type:Journal Article
- Keywords:
Dryopteris sublaeta Ching et Hsu;
Dryopteris;
stilbene glycoside;
3,5-dihydroxystilbene-3-O-neohesperidoside
- From:
Acta Pharmaceutica Sinica
2005;40(12):1131-1134
- CountryChina
- Language:Chinese
-
Abstract:
Aim To study the chemical constituents of Dryopteris sublaeta Ching et Hsu. Methods Fresh plant of Dryopteris sublaeta Ching et Hsu was extracted twice with boiling water, concentrated to small volume under reduced pressure at 50 ℃. The concentrated material was partitioned with ether, ethyl acetate, and n-butanol. The fraction of ethyl acetate extract was chromatographed over macroporous adsorption resin (Diaion HP-20) eluted with a mixture of H2O and MeOH in increasing MeOH content.Their fractions from resin were repeatedly chromatographed over Toyopearl HW-40, Sephadex LH-20 and silica gel column chromatography. The compounds were identified on the basis of their physiochemical and spectral data. Results Four compounds were obtained and identified as 3,5-dihydroxy-stilbene-3-O-neohesperidoside ( 1 ), 3,5-dihydroxy-stilbene-3-O-β-D-glucoside ( 2 ), polydotin peceid (3) and 3,5,4'-trihydroxy-bibenzyl-3-O-β-D-glucoside (4). Conclusion Compound 1 is a new compound, the others were isolated from Dryopteris for the first time.
