A novel nortriterpene fromHedera rhombea.
A new nortriterpene, rhombenone (1) was isolated from the leaves ofHedera rhombea Bean (Araliaceae). The structure of this compound was established as 27-demethyl-20(S)-dammar-23-ene-6alpha,20-diol-3,25-dione on the basis of spectral analysis including HMQC and HMBC techniques. Rhombenone (1) was the first 27-demethyl nortriterpene of dammarance type isolated from natural sources.
Kim
K S
KS
College of Pharmacy, Ewha Womans University, 120-750, Seoul, Korea.
Choi
Y H
YH
Lee
I R
IR
Kwon
B M
BM
Lee
S H
SH