Abstract
From the roots of Aconitum crassicaule, four diterpenoid alkaloids were isolated. Two of these were identified as chasmanine (5) and yunaconitine (4). The other two, Crassicauline A and Crassicauline B, are new alkaloids. The structure of crassicauline A, C35H49O10N, has been elucidated as structure (1) on the basis of chemical and spectral data, while the structure of crassicauline B, C27H31O4N, is still to be determined.
Key Word Index
Aconitum crassicaule - Ranunculaceae - Diterpenoid alkaloids - Chasmanine - Yunaconitine - Crassicauline A - Crassicauline B
