Diterpenoids from Isodon leucophyllus.
The structures of two new ENT-kaurane diterpenoids and two derivatives of shikokianin isolated from leaves of Isodon leucophyllus were elucidated by 1D and 2D NMR techniques as 11alpha-acetoxyeffusanin D, 6-acetylepinodosinol, 16beta-ethoxymethyleneshikokianin, and 16alpha-ethoxymethyleneshi-kokianin.
Chen
S N
SN
Shanghai Institute of Materia Medica, Academia Sinica, Shanghai, P.R. China. snchen@server.shcnc.ac.cn
Lin
Z W
ZW
Qin
G W
GW
Sun
H D
HD
Chen
Y Z
YZ