Author/Authors :
Cheng، نويسنده , , Gui-Guang and Zhang، نويسنده , , Yu and Cai، نويسنده , , Xiang-Hai and Bao، نويسنده , , Mei-Fen and Gu، نويسنده , , Ji and Li، نويسنده , , Yan and Liu، نويسنده , , Ning and Liu، نويسنده , , Ya-ping and Luo، نويسنده , , Xiao-Dong، نويسنده ,
Abstract :
Cincholenines A (1) and B (2), two novel quinoline alkaloids characterized with rearranged quinuclidine ring system, were isolated from the barks of Cinchona ledgeriana. The structures were elucidated on the basis of spectroscopic and quantum theory. A possible biogenesis was postulated.