[Chemical constituents of Rheum wittrochii Lundstr(II)].

OBJECTIVE

To study the chemical constituents in the root of Rheum wittrochii.

METHOD

Chromatography and spectroscopic analysis to isolate and elucidate the chemical constituents in the plant.

RESULT

Six compounds, namely 3, 5-dihydroxy-4'-methoxystilbene; 3, 5, 4'-tridroxystilbene; piceatannol; desoxyrhaponticin; piceatannol-4'-O-beta-D-glucopyranoside; 2, 5-dimethyl-7-hydroxychromone, have been isolated from ethyl ether and ethyl acetate fractions.

CONCLUSION

These compounds were isolated from the title plant for the first time.