Rong-Hua Liu1, Bo-Yang Yu. 1. Jiangxi College of Traditional Chinese Medicine, Nanchang 330006, China. rhliu@163.com
Abstract
OBJECTIVE: to study the chemical components of the leaves from Crataegus pinnatifida Bge. var major N. E. Br. METHODS: Constituents were isolated by using silica gel, porous resin, Sephadex LH-20 chromatographic technique, etc. Their structures were elucidated by chemical and spectroscopic methods. RESULTS: Fourteen compounds were identified as quercetin (1), hyperoside (2), quercetin 3-O-beta-D-glucoside (3), rutin (4), quercetin 3-O-[alpha-L-rhamnopyranosyl(1-4)-alpha-L-rhamnopyranosyl-(1-6)-beta-glucopyranoside] (5), vitexin (6), 6"-O-acetyl-vitexin (7), vitexin 2"-O-rhamnoside (8), vitexin 4"-O-glucoside (9), chlorogenic acid (10), ursolic acid (11), beta-sitosterol (12), beta-daucosterol (13), n-triacontanol (14). CONCLUSION: Compound 5 and 14 were isolated from Crataegus L. for the first time.
OBJECTIVE: to study the chemical components of the leaves from Crataegus pinnatifida Bge. var major N. E. Br. METHODS: Constituents were isolated by using silica gel, porous resin, Sephadex LH-20 chromatographic technique, etc. Their structures were elucidated by chemical and spectroscopic methods. RESULTS: Fourteen compounds were identified as quercetin (1), hyperoside (2), quercetin 3-O-beta-D-glucoside (3), rutin (4), quercetin 3-O-[alpha-L-rhamnopyranosyl(1-4)-alpha-L-rhamnopyranosyl-(1-6)-beta-glucopyranoside] (5), vitexin (6), 6"-O-acetyl-vitexin (7), vitexin 2"-O-rhamnoside (8), vitexin 4"-O-glucoside (9), chlorogenic acid (10), ursolic acid (11), beta-sitosterol (12), beta-daucosterol (13), n-triacontanol (14). CONCLUSION: Compound 5 and 14 were isolated from Crataegus L. for the first time.
Authors: Xi Xiang Ying; Fei Wang; Zhong Zhe Cheng; Wen Jie Zhang; Hai Bo Li; Yang Du; Xun Liu; Si Yuan Wang; Ting Guo Kang Journal: Eur J Drug Metab Pharmacokinet Date: 2011-11-06 Impact factor: 2.441