Structure elucidation of an unprecedented alkaloid and a new limonoid from Xylocarpus granatum.
An unprecedented new limonoid-based alkaloid, granatoine (1), and a new phragmalin, xylocarpin L (2), along with xyloccensin Y were isolated as minor components from the fruits of the Chinese mangrove plant Xylocarpus granatum. Their structures were elucidated by extensive spectroscopic data (1D and 2D NMR) analysis. A possible biogenetic pathway for granatoine was also depicted.
Cui
Jianxin
J
State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, PR China.
Ouyang
Jie
J
Deng
Zhiwei
Z
Lin
Wenhan
W
D002247:Carbon Isotopes; D005638:Fruit / Q000737:chemistry; D036701:Limonins / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy / Q000379:methods* / Q000592:standards*; D029582:Meliaceae / Q000737:chemistry*; D008968:Molecular Conformation; D011522:Protons; D012015:Reference Standards; D013237:Stereoisomerism
D002247:Carbon Isotopes; D036701:Limonins; D011522:Protons; C532578:granatoine; C532579:xylocarpin L; C513523:xyloccensin Y