title: Structures of Crassicaulisine and Crassicaulidine, two New Diterpenoid Alkaloids.
abstract: From the roots of Aconitum crassicaule, two new diterpenoid alkaloids, crassicaulisine and crassicaulidine, were isolated. The structure of crassicaulisine, C (24)H (39)O (7)N, has been elucidated as 3 on the basis of chemical and spectral data, while the structure of crassicaulidine, C (24)H (39)O (8)N, has been shown as 4 on the basis of chemical data and spectral comparison with crassicaulisine.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China.
authors.forename: W
authors.initials: W
authors.lastname: Fengpeng
authors.forename: F
authors.initials: F
authors.lastname: Qicheng