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[Studies on the chemical constituents of Rumex crispus]
Ji-ping Fan1, Zhen-liang Zhang
1NO. 421 Hospital of PLA, Guangzhou 510310, China. fanjipingmail@21cn.com
Objective:
To study the chemical constituents of Rumex crispus.
Methods:
Compounds were isolated and purified repeatedly by silica gel, Sephadex gel and ODS C18 column chromatographies, and structure identifications of compounds were carried out by physical, chemical methods and spectral data.
Results:
Fifteen compounds were obtained from the petroleum ether and ethyl acetate fractions of R. crispus, and were identified as beta-sitosterol(1), hexadecanoic acid(2), hexadecanoic-2,3-dihydroxy propyleste(3), chrysophanol(4), physcion(5), emodin(6), chrysophanol-8-O-beta-D-glucopyranoside(7), physcion-8-O-beta-D-glucopyranoside(8), emodin-8O-beta-D-glucopyranoside(9), gallic acid(10), (+)-catechin(11), kaempferol(12), quercetin(13), kaempferol-3-O-alpha-L-rhamnopyranoside(14), quercetin-3-O-alpha-L-rhamnopyranoside(15).
Conclusion:
Compounds 3,8-12,14 and 15 are obtained from R. crispus for the first time.
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