From the aerial parts of Consolida orientalis collected in Turkey, a new diterpenoid alkaloid designated as consorientaline has been isolated along with the known norditerpenoid alkaloids delsoline, delcosine, gigactonine, and takaosamine. The structure of consorientaline (1) was established by
A new norditerpene alkaloid was isolated, 18-demethylpubescenine (1), in addition to four known compounds, 14-demethyltuguaconitine (2), takaosamine (3), gigactonine (4), and delcosine (5), from fresh, whole plants of Consolida orientalis. The structure of 1 was established by spectroscopic methods,