A SEDOHEPTULOSE GALLATE FROM THE FRUITS OF CORNUS OFFICINALIS
- VernacularTitle:山茱萸中的单没食子酰景天庚酮糖苷
- Author:
Yongwen ZHANG
;
Yuwu CHEN
;
Shiping ZHAO
- Publication Type:Journal Article
- Keywords:
Cornus officinalis Sieb et Zucc.;
cornaceae;
7-O-galloyl-D-sedoheptulose;
D-sedoheptulose
- From:
Acta Pharmaceutica Sinica
1999;34(2):153-155
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To investigate the chemical constituents of the plant drug Cornus officinalis Sieb et Zucc. which is widely used in Chinese traditional medicine, having actions of invigorating the liver and kidney, strengthening the body, and of an astringent, etc. METHODS: A sedoheptulose gallate was isolated from the water extracts of fruits of C.officinalis using various chromatographies. The structure determination was based on spectral (UV, IR, 1H & 13CNMR and MS) and chemical evidence. RESULTS: Its structure was characterized to be 7-O-galloyl-D-sedoheptulose (I). The proportion of its three major conformation forms of β-F, α-F and α-P in aqueous solution was estimated to be 57:24:19 according to their C-1 peak heights in the 13CNMR spectrum. CONCLUSION: I was found in natural world for the first time and its β-D-heptufuranosyl form was the predominant existing tautomer in its equilibrated aqueous solution according to NMR determination.
