Studies on chemical constituents in n-butanol extracts from epicarp of green fruit of Juglans mandshurica
10.7501/j.issn.0253-2670.2015.04.004
- Author:
Bing-You YANG
1
Author Information
1. College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine
- Publication Type:Journal Article
- Keywords:
3,5-di-O-caffeoylquinic acid butyl ester;
4-hydroxy-2,6-dimethoxyphenol-1-O-β-D-glucopyranoside;
5-O-cafffeoyl quinic acid butyl ester;
Epicarps of Juglans mandshurica Maxim.;
Quercitrin
- From:
Chinese Traditional and Herbal Drugs
2015;46(4):481-485
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the chemical constituents in n-butanol extracts from the epicarp of green fruits of Juglans mandshurica. Methods: The compounds were isolated and purified by silica gel, ODS, Sephadex LH-20 columns, high preparative performance liquid chromatography, etc. And their structures were identified by spectral analysis. Results: Fourteen compounds were obtained and identified as 5-O-cafffeoyl quinic acid butyl ester (1), 3,5-di-O-caffeoylquinic acid butyl ester (2), vanillic acid-4-O-β-D-(6'-O-galloyl) glucopyranoside (3), 4-hydroxy-2,6-dimethoxyphenol-1-O-β-D-glucopyranoside (4), 4,5,8-trihydroxy-α-tetralone-5-O-β-D-glucopyranoside (5), 1,4,8- trihydroxynaphthalene-1-O-β-D-glucopyranoside (6), 1,4,5-trihydroxynaphthalene-1,4-di-O-β-D-glucopyranoside (7), kaempferol-3-O-β- D-glucopyranoside (8), quercetin-3-O-β-D-glucopyranoside (9), quercitrin (10), myricitrin (11), afzelin (12), hyperin (13), and daucosterol (14). Conclusion: Compounds 1-4 are isolated from the plants of Juglans L. for the first time, Compounds 5, 8-12 are isolated from the epicarps of J. mandshurica for the first time.
