1.
Chem Pharm Bull (Tokyo)
; 48(1): 142-4, 2000 Jan.
Article
in English
| MEDLINE
| ID: mdl-10705491
ABSTRACT
The structure of iso-grayanotoxin II, a new diterpenoid from Leucothoe grayana MAX., has been determined as 3 beta,5 beta,6 beta,14 beta,16 alpha-pentahydroxygrayanotox-9(10)-ene by spectroscopic and X-ray crystallographic analysis. The lethal dosage level of iso-grayanotoxin II in mice was lower than that of grayanotoxin III.