Zhongguo Zhongyao Zazhi 2008-Sep
[Studies on alkalodial constituents in leaves of Uncaria hirsuta].
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Abstrè
OBJECTIVE
To study the alkaloidial constituents of the leaves of uncaria hirsuta.
METHODS
Some chromatographic methods were applied to isolate pure compounds and their structures were elucidated by spectroscopic methods.
RESULTS
Eleven compounds were isolated and identified as 19-epi-3-iso-ajmalicine (1), 3-isoajmalicine (2), harman (3), mitraphylline (4), isomitraphylline (5), isorhynchophylline (6), corynoxine (7), rhynchophylline (8), isomitraphyllic acid (9), uncarine A (10) and uncarine B (11).
CONCLUSIONS
Compounds 1-9 were firstly isolated from this plant.