Structure Elucidation of Inflexarabdonins G and H: Two New Diterpenoids from Rabdosia inflexa.
From the dried aerial parts of RABDOSIA INFLEXA, two new diterpenoids, named inflexarabdonin G and inflexarabdonin H were isolated and the structures were elucidated as ENT-1beta,3alpha,11alpha-trihydroxy-kaur-16-en-15-one 3,11-diacetate and ENT-1beta,3alpha,11alpha-trihydroxy-kaur-16-ene-6,15-dione 1,3-diacetate, respectively, on the basis of spectroscopic and chemical evidence.
Takeda
Y
Y
Faculty of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770, Japan.
Ichihara
T
T
Yamasaki
K
K
Otsuka
H
H