From the aerial parts of Consolida orientalis collected in Turkey, a new di
terpenoid alkaloid designated as consorientaline has been isolated along wi
th the known norditerpenoid alkaloids delsoline, delcosine, gigactonine, an
d takaosamine. The structure of consorientaline (1) was established by spec
troscopic studies and chemical correlation with dihydroajaconine (2).