Objective: To study the chemical constituents in roots of Heracleum rapula.
Method: The constituents were isolated by column chromatography on silica gel and ODS, and identified by spectroscopic methods.
Result: Eight compounds, xanthotoxol (I), 8-geranyloxypsoralen (II), (+)-marmesin (III), beta-sitosterol (IV), stigmasterol (V), oleanolic acid (VI), ferulic (VII), scopoletin (VIII) were isolated and identified.
Conclusion: Compounds IV, V, VI, VII, VIII were isolated from this plant for the first time.