From the aerial parts of Delphinium formosum, a new norditerpenoid alk
aloid, N-acetyldelectine (14-demethylajacine), was isolated, in additi
on to six known compounds, lycoctonine, delsemine A, delsemine B, dele
ctine, delcosine and anthranoyllycoctonine. The structures of the comp
ounds were determined by spectroscopic methods.