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[Studies on the alkaloids from the herb of Corydalis adunca]
Yan-li Tang1, Ai-mei Yang, Ying-shan Zhang
1Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
Objective:
To study the alkaloid constituents of Corydalis adunca.
Method:
The constituents were isolated on silica gel column and their structures were elucidated by IR, NMR, MS data.
Result:
Eight alkaloid compounds were isolated from alcohol extracts of the herb of C. adunca, and identified as dihydrosanguinarine (I), tetrahydrocolumbamine (II), 1,2,3,4-tetrahydro-7-methoxy-1-[(4-methoxy)phenyl]methyl-8-quinolinol (III), protopine (IV) and 6-acetonyl-5,6-dihydrosanguinarine (V).
Conclusion:
Five compounds were isolated from C. adunca for the first time.
