[Chemical constituents from Corydalis humosa].

OBJECTIVE

To study the chemical constituents of Corydalis humosa Migo.

METHODS

Some chromatography methods were used to separate the chemical constituents of this plant. Their structures were determined by NMR and MS spectral data.

RESULTS

Six compounds were isolated from the 95% ethanolic extract of the tubers of C. humosa. The structures of these compounds were identified as tetrahydropalmatine (1), jatrorrhizine (2), berberine (3), tetrahydroberberine (4), palmaline (5) and (-)-tetrahydrocoptisine (6) respectively.

CONCLUSIONS

Compounds 1-3 were isolated from this plant for the first time.