Alkaloids from the leaves of Daphniphyllum longeracemosum.
Two new C-21 Daphniphyllum alkaloids, longeracinphyllins A (1) and B (2), have been isolated from the leaves of Daphniphyllum longeracemosum. Longeracinphyllin A (1) is a new daphnilongeranin B type alkaloid with a rearranged alpha,beta-unsaturated ketone group, and the structure is supported by X-ray crystal data. Longeracinphyllin B (2) is a new seco-10,17-daphnilongeranin B type alkaloid.
Di
Ying-Tong
YT
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, People's Republic of China.
He
Hong-Ping
HP
Lu
Yang
Y
Yi
Ping
P
Li
Lin
L
Wu
Li
L
Hao
Xiao-Jiang
XJ
D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D002681:China; D018360:Crystallography, X-Ray; D019684:Magnoliopsida / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry
D000470:Alkaloids; C513517:longeracinphyllin A; C513518:longeracinphyllin B