[Studies on flavone constituents of Erigeron breviscapus (Vant.) Hand.-Mazz].

OBJECTIVE

To study the chemical constituents of Erigeron breviscapus.

METHOD

The constituents were separated and purified by column chromatography with silica gel, and identified by IR, MS, NMR and physical data.

RESULT

Five compounds were isolated and identified as 3, 5, 6, 4'-tetrahydroxy-7-methoxy flavonoid(I); 5, 7, 4'-trihydroxy flavonoid(II); 3, 5, 6, 7, 4'-pentahydroxy flavonoid(III); scutellarein (IV) and 5, 7, 4'-trihydroxy flavanone(V).

CONCLUSION

Compounds I, III and V were isolated from this plant for the first time.