Norditerpenoid and dianthramide glucoside alkaloids from cultivatedaconitum species from Korea
ABSTRACT A new norditerpene alkaloid named 8-O-methylhypaconine (1) was isolated along with twelve known alkaloids from the underground
parts of an unknown species ofAconitum plant culti-vated in Korea. Among the known alkaloids, two dianthramide glucosides, N-(2′-β-glucopyra-nosyl-5′-hydroxysalicyl)-5-hydroxyanthranilic
acid methyl ester (2) and N-(2′-β-glucopyranosyl-5′-hydroxysalicyl)-5-hydroxy-6-methoxyanthranilic acid methyl ester (3),
were isolated fromAconitum plants for the first time. The structures were established on the basis of chemical and spectroscopic methods.