Unprecedented C 19 -diterpenoid alkaloid glycosides from an aqueous extract of “fu zi”: Neoline 14- O - l -arabinosides with four isomeric l -anabinosyls
作者:Xian-Hua Meng、Qing-Lan Guo、Cheng-Gen Zhu、Jian-Gong Shi
DOI:10.1016/j.cclet.2017.04.026
日期:2017.8
alkaloid glycosides with isomeric arabinosyls, named aconicarmichosides A–D (1–4), were isolated from an aqueous extract of “fu zi”, the lateral roots of Aconitum carmichaelii. Their structures were determined as neoline 14-O-α- and 14-O-β- l -arabinopyranosides (1 and 2) and 14-O-α- and 14-O-β- l -arabinofuranosides (3 and 4), by spectroscopic and chemical methods including 2D NMR experiments and acid
摘要从腐殖假单胞菌侧根“ fu zi”的水提物中分离出四个结构上前所未有的乌头烷型C19-二萜类生物碱与异构阿拉伯糖基,命名为aconicarmichosides A–D(1-4)。它们的结构被确定为新的14-O-α-和14-O-β-1-阿拉伯吡喃糖苷(1和2)和14-O-α-和14-O-β-1-阿拉伯呋喃糖苷(3和4),通过光谱和化学方法,包括2D NMR实验和酸水解。化合物1-4是糖苷二萜生物碱的第一个实例。