摘要：

Objective: To study the chemical constituents in the root of Rheum wittrochii. Method: Chromatography and spectroscopic analysis were used to isolate and elucidate the chemical constituents in the plant. Result: Six compounds, namely chrysophanol, physcion, emodin, chrysophanol8OβDglucopyranoside, physcion8OβDglucopyranoside and βsitosterol, have been isolated from petroleum ether and ethyl acetate fractions. Conclusion: All the abovecited compounds were isolated from the title plant for the first time, and anthraquinone compounds are some of the major constituents of R. wittrochii.

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