Structures of crassicauline B and crassicaulidine.
Two minor alkaloids, crassicauline B and crassicaulidine, were isolated from the roots of ACONITUM CRASSICAULE (1, 2). The structure of crassicauline B, C (27)H (31)O (4)N, is now deduced as ( 1), while the previously assigned structure of crassicaulidine has been further confirmed as ( 7) on the basis of chemical data and (13)C-NMR spectrum.
Wang
F P
FP
Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
Liang
X T
XT