New C19-Diterpenoid Alkaloids from Aconitum liljestrandii

Two new C 1 9 -diterpenoid alkaloids, liljestrandinine (1) and N-deethyltalatisamine (2) were isolated from the roots of Aconitum liljestrandii along with five known C 1 9 -diterpenoid alkaloids: chasmaconitine (4), forestine (5), pengshenine B (6), cammaconine (7), and 6-epi-foresticine (8). Structures were established by spectroscopic method including 2D NMR.