[O-methylnotopterol, a new natural product from the roots and rhizomes of Notopterygium incisum].

OBJECTIVE

To study the chemical constituents of ethyl acetate-soluble fraction from methanolic extract of the roots and rhizomes of Notopterygium incisum .

METHOD

The chemical constituents were isolated and purified by various chromatographic methods, and their structures were identified by NMR and MS data analysis.

RESULT

Five compounds were obtained and identified as falcarindiol (1), 8-hydroxy-l-methoxy-( Z) -9-heptadecene-4, 6-diyn-3-one (2) angenomalin (3), scopoletin (4), O-methylnotopterol (5).

CONCLUSION

Compound 5 was a new natural product and compounds 2-4 were isolated from the roots and rhizomes of N. incisum for the first time.