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Indexed by:期刊论文

Date of Publication:2007-03-01

Journal:PHYTOCHEMICAL ANALYSIS

Included Journals:SCIE、PubMed

Volume:18

Issue:2

Page Number:91-97

ISSN No.:0958-0344

Key Words:fingerprinting; Daphne genkwa; yuanhuacine; quantitative analysis; HPLC-UV

Abstract:Daphne genkwa contains a novel class of anticancer diterpene esters that inhibit DNA topoisomerase I. Fingerprint and quantitative analysis by HPLC were performed in order to characterise and evaluate D. genkwa. A standard fingerprint of Daphne diter-pene esters from the root extract was first established by HPLC-LJV, and the major peaks in the fingerprint profile were preliminarily determined using HPLC-MS. The principal Daphne diterpene esters, yuanhuacine (1), yuanhuadine (2), yuanhuajine (3) and yuanhuagine (4), were isolated and identified using a combination of UV, IR, MS, H-1-NMR and C-13-NMR spectral data. Quantitative analysis indicated that 1 was the principal component in the root, and that 2 was the major component in the buds. The average extraction rates of 1 and 2 were 0.0151 and 0.0033% (n = 10) from the root, respectively, and 0.0020 and 0.0078% (n = 3) from the buds. respectively. Copyright (c) 2006 John Wiley & Sons, Ltd.