Norditerpenoid and diterpenoid alkaloids from Turkish Consolida orientalis

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 spectroscopic studies and chemical correlation with dihydroajaconine (2).