A new ellagic acid from leaves of Camellia chrysantha
10.7501/j.issn.0253-2670.2018.01.010
- Author:
Jian-Guang MO
1
Author Information
1. Guangxi Center for Analysis and Test Research
- Publication Type:Journal Article
- Keywords:
6-hydroxy-kaempferol-3-O-β-D-glucopyranoside;
Camellia A;
Camellia chrysantha (Hu) Tuyama;
Ellagic acid-4-O-β-D-glucopyranoside;
Ellagic acids
- From:
Chinese Traditional and Herbal Drugs
2018;49(1):75-79
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the chemical constituents in the leaves of Camellia chrysantha. Methods The chemical constituents were separated and purified by silica gel, Sephadex LH-20 column chromatography, recrystallization, preparative HPLC and so on. Their structures were determined by physical constants and spectral analyses. Results Ten compounds were isolated and identified as 3,4-methylenedioxy-3′-O-methyl-4′-O-(6′-O-acetyl-glucoside) ellagic acid (1), oleanolic acid (2), α-spinasteryl-3- O-β-D-glycoside (3), n-dotriacontanol (4), okicamelliaside (5), 6-hydroxy-kaempferol-3-O-β-D-glucopyranoside (6), 3,4-O,O- methylidyne-ellagic acid (7), ellagic acid-4-O-β-D-glucopyranoside (8), 3,4-methylenedioxy-3'-O-methyl-4'-O-glucoside ellagic acid (9), and p-(hydroxymethyl) phenol 5-O-β-D-glucopyranosyl (1→2)-β-D-(4-O-p-coumaryl)-glucopyranoside (10). Conclusion Compound 1 is a new ellagic acid named camellia A. Compounds 4—10 are obtained from this plant for the first time.
