A new norditerpenoid alkaloid, manshuritine (1) has been isolated from Aconitum manshuricum, together with seven known alkaloids; beiwudine (2), beiwutine (3), 16-epi-pyromesaconitine (4), mesaconitine (5), aconitine (6), hypaconitine (7) and 14-benzoylmesaconine (8). The structure of the new compound was elucidated on the basis of spectral data and chemical correlations.
Keywords: Aconitum manshuricum; Manshuritine; Norditerpenoid alkaloids; Ranunculaceae.