Cipadonoid A, a novel limonoid with an unprecedented skeleton, from Cipadessa cinerasecns.
Cipadonoid A ( 1), a novel limonoid with an unprecedented skeleton, was isolated from the leaves of Cipadessa cinerasecns. Its structure and relative configuration were determined by spectroscopic analysis and computer modeling. 1 represents a new type of limonoid, characterized by a rearranged tetrahydropyranyl ring B incorporating usually exocyclic C-30. A possible biosynthetic pathway of 1 was also proposed.
Fang
Xin
X
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China.
Di
Ying-Tong
YT
He
Hong-Ping
HP
Liu
Hai-Yang
HY
Zhang
Zhen
Z
Ren
Yan-Li
YL
Gao
Zhu-Lin
ZL
Gao
Suo
S
Hao
Xiao-Jiang
XJ
D002942:Circular Dichroism / Q000379:methods; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D036701:Limonins / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy / Q000379:methods / Q000592:standards; D029582:Meliaceae / Q000737:chemistry*; D008956:Models, Chemical; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012015:Reference Standards; D013056:Spectrophotometry, Ultraviolet / Q000379:methods
D004365:Drugs, Chinese Herbal; D036701:Limonins; C529922:cipadonoid A