Alkaloids of Aconitum laeve and their anti-inflammatory, antioxidant and tyrosinase inhibition activities

A lycoctonine-type norditerpenoid alkaloid, swatinine (1), along with four known norditerpenoid alkaloids, and a benzene derivative 4-[2-(methoxycarbonyl)-anilino]-4-oxobutanoic acid (2) were isolated from the aerial parts of Aconitum laeve Royle.