Norditerpenoid alkaloids from Delphinium formosum

Abstract

From the aerial parts of Delphinium formosum, a new norditerpenoid alkaloid, N-acetyldelectine (14-demethylajacine), was isolated, in addition to six known compounds, lycoctonine, delsemine A, delsemine B, delectine, delcosine and anthranoyllycoctonine. The structures of the compounds were determined by spectroscopic methods.