Abstract: Abstract Three new diterpenoid alkaloids, named bulleyaniline A, bulleyanitine B and bulleyanitine C were obtained from the roots of Delphinium bulleyanum Forrest ex Diets. On the basis of the spectroseopic and Chemical evidence, their structures were established as ( 4 ), ( 5 ) and ( 6 ). Three known alkaloids, methy-llycaconitine ( 1 ), ajacine ( 2 ) and delsemine ( 3 ), were also isohted and identified.

Key words: Delphinium