Phytochemistry 2005-Apr
Alkaloids of Aconitum laeve and their anti-inflammatory antioxidant and tyrosinase inhibition activities.
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A lycoctonine-type norditerpenoid alkaloid, swatinine (1), along with four known norditerpenoid alkaloids, delphatine (3), lappaconitine (4), puberanine (5), and N-acetylsepaconitine (6), and were isolated from the aerial parts of Aconitum laeve Royle. Compound 2 has been isolated for the first time from a natural source. The structure of compound 1 was deduced on the basis of spectral data. The anti-inflammatory, antioxidant and tyrosinase inhibition studies on all six compounds have also been carried out.