Structures of two new diterpenoid dimers from bulbs of Fritillaria ebeiensis.
Two new ent-kauranoid diterpenoid dimers, fritillebin C (1) and fritillebin D (2), were isolated from the bulbs of Fritillaria ebeiensis G.D. Yu and G.Q. Ji. Their structures were determined to be ent-16beta-hydroxy-kauran-17-yl ent-16beta3-kauran-17-oate (1); ent-16alpha-hydroxy-kauran-17-yl ent-16beta-kauran-17-oate (2) by means of spectral analysis and chemical evidence.
Wu
J Z
JZ
Faculty of Pharmaceutical Sciences, Tongji Medical University, Wuhan, China.
Ruan
H L
HL
Zeng
C L
CL
Cheng
H A
HA
Zhang
F
F
Zhao
Q S
QS
Sun
H D
HD
Fujita
T
T
D019281:Dimerization; D004224:Diterpenes / Q000302:isolation & purification*; D019668:Liliaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical
D004224:Diterpenes; C436363:fritillebin C; C436362:fritillebin D