[Studies on the alkaloids from the herb of Corydalis adunca].
OBJECTIVE
To study the alkaloid constituents of Corydalis adunca.


METHODS
The constituents were isolated on silica gel column and their structures were elucidated by IR, NMR, MS data.


RESULTS
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).


CONCLUSIONS
Five compounds were isolated from C. adunca for the first time.
Tang
Yan-li
YL
Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
Yang
Ai-mei
AM
Zhang
Ying-shan
YS
Wang
Han-qing
HQ
D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D053119:Benzophenanthridines; D001600:Berberine Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D031311:Corydalis / Q000737:chemistry*; D007546:Isoquinolines; D015394:Molecular Structure; D010617:Phenanthridines / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*
D000470:Alkaloids; D053119:Benzophenanthridines; D001600:Berberine Alkaloids; D007546:Isoquinolines; D010617:Phenanthridines; C501843:dihydrosanguinarine; C092892:tetrahydrocolumbamine; C009093:protopine