Chemical constituents from barks of Pterocarya stenoptera
10.7501/j.issn.0253-2670.2013.07.005
- Author:
Shuang GAO
1
Author Information
1. Institute of Traditional Chinese Medicine and Natural Products
- Publication Type:Journal Article
- Keywords:
(4S)-4, 8-dihydroxy-1-tetralone;
3, 3'-di-O-methyl ellagic acid-4'- O-β-D-xylopyranoside;
Glochidone;
Myricetin;
Pterocarya stenoptera C. DC.
- From:
Chinese Traditional and Herbal Drugs
2013;44(7):803-807
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the chemical constituents in the barks of Pterocarya stenoptera. Methods: The chemical constituents in chloroform and ethyl acetate fractions of 90% ethanol extract from the barks of P. stenoptera were isolated and purified by column chromatography over silica gel, ODS, Sephadex LH-20 columns, preparative HPLC, and recrystallization. The structures of the isolated compounds were identified on the basis of physicochemical properties and spectral data analyses. Results: Fourteen compounds were obtained and identified as glochidone (1), lup-20(29)-en-1β, 3β-diol (2), ursolic acid (3), betulinic acid (4), 2α, 3β, 19α-trihydroxyurs-12-en-28-O-β-D-glucopyranoside (5), (4S)-4, 8-dihydroxy-1-tetralone (6), 5-hydroxy-4-methoxy-α-tetralone (7), (4S)-4-hydroxy-1-tetralone (8), myricitrin (9), 30-norlupan-28-oic acid (10), myrictin (11), quercetin-3-O-2″-galloyl-rhamnoside (12), oleanolic acid (13), and 3, 3'-di-O-methyl ellagic acid-4'-O-β-D-xylopyranoside (14). Conclusion: Compounds 1-14 are isolated from the plant for the first time, and compounds 5 and 7-14 are obtained from the plants in Pterocarya Kunth. for the first time.
