[Studies on chemical constituents from herb of Hemiphragma heterophyllum].

OBJECTIVE: To study the chemical constituents from Hemiphragma heterophyllum. METHOD: The constituents were isolated and purified by chromatographic technology and their structures were elucidated by physico-chemical evidence and spectral data. RESULT: Eight compounds were isolated and identified as hemiphroside C (I), plantainoside E (II), hemiphroside A (III), acetoside (IV), globularin (V), 10-(Z)-cinnamoyl-catapol (VI), iso-scrophularioside (VII), cinnamic acid (VIII). CONCLUSION: Compound I was a new phenylethanoid glucoside and compounds II and VI were isolated for the first time from this plant.