A new cassane diterpenoid from the seeds of Caesalpinia decapetala.
Phytochemical investigation on the seeds of Caesalpinia decapetala led to the isolation of a new cassane diterpenoid with an unusual O bridge between C-19 and C-20, named phanginin Q (1), together with three known cassane diterpenoids, caesaljapin (2), caesaldekarin A (3), and caesaldekarin B (4). The structure of the new compound was elucidated by spectroscopic methods, including (1)H NMR, (13)C NMR, HSQC, (1)H - (1)H COSY, HMBC, NOESY, and HR-ESI-MS.
a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing 100700 , China.|b National Engineering Laboratory for Quality Control Technology of Chinese Herbal Medicines , Beijing 100700 , China.|c Key Laboratory of Plant Resources Conservation and Utilization, College of Hunan Province, Jishou University , Jishou 416000 , China.
Hua
H
Wei
a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing 100700 , China.|b National Engineering Laboratory for Quality Control Technology of Chinese Herbal Medicines , Beijing 100700 , China.
Xiao-Qian
XQ
Liu
a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing 100700 , China.|b National Engineering Laboratory for Quality Control Technology of Chinese Herbal Medicines , Beijing 100700 , China.
Jing-Jing
JJ
Zhu
a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing 100700 , China.|b National Engineering Laboratory for Quality Control Technology of Chinese Herbal Medicines , Beijing 100700 , China.
Liang-Liang
LL
Gao
a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing 100700 , China.|b National Engineering Laboratory for Quality Control Technology of Chinese Herbal Medicines , Beijing 100700 , China.
Zhi-Min
ZM
Wang
a Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing 100700 , China.|b National Engineering Laboratory for Quality Control Technology of Chinese Herbal Medicines , Beijing 100700 , China.
Li-Hua
LH
Yan
D029911:Caesalpinia / Q000737:chemistry*; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D012639:Seeds / Q000737:chemistry
D004224:Diterpenes; C000609831:phanginin Q
Caesalpinia decapetala; Fabaceae; cassane diterpenoid; structure elucidation