[Studies on chemical constituents in roots of Heracleum rapula].

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.