[Studies on the alkaloids from roots of Corydalis impatiens].

OBJECTIVE: To study the alkaloids from Corydalis impatiens. METHODS: The alkaloids were isolated and purified by chromatography and their structures were identified by spectral data and others methods. RESULTS: Seven alkaloids were isolated and identified as bicuculline(1), ochotensine(2), ochotensimine(3), ochrobirine(4), tetrahydrothalifendine(5), norochotensimine(6), N-methylactinodaphnine(7). CONCLUSION: All these compounds are isolated from this plant for the first time.