布渣叶的生物碱类成分研究

布渣叶的氯仿提取物经硅胶柱色谱分离得到4个生物碱, 其结构经 MS、¹H NMR、¹³C NMR波谱解析分别鉴定为N-甲基-6α-癸间三烯 [1′, 3′, 5′ ]-2β-甲基-3β-甲氧基哌啶 (N-methyl-6α-(deca-l′, 3′, 5′-trienyl)-3β- methoxy-2β-methylpiperidine, 1), 6-癸间三烯 [1′, 3′, 5′ ]-2-甲基-3-甲氧基哌啶 (6-(deca-l′, 3′, 5′-trienyl)-3-methoxy- 2-methylpiperidine, 2), N-甲基-6-癸间三烯 [1′, 3′, 5′ ]-2, 3-二甲基哌啶 (N-methyl-6-(deca-l′, 3′, 5′-trienyl)-2, 3- dimethylpiperidine, 3), N-甲基-6-癸间三烯 [1′, 3′, 5′ ]-2-甲基哌啶 (N-methyl-6-(deca-l′, 3′, 5′-trienyl)-2-methyl piperidine, 4), 化合物2, 3和4为新化合物。4个化合物分别命名为布渣叶碱Ⅰ (micropiperidine A)、布渣叶碱Ⅱ (micropiperidine B)、布渣叶碱Ⅲ (micropiperidine C)和布渣叶碱Ⅳ (micropiperidine D)。

Seperation and structure elucidation of alkaloids from Chinese drug buzhaye, Folium Microcos

From the chloroform extracts of the dried Folium Microcos, four compounds were isolated by  using repeated column chromatography on silica gel and recrystallization and their structures were elucidated  by physicochemical properties and UV, MS and NMR, separately.  They are N-methyl-6α-(deca-l′, 3′, 5′- trienyl)-3β-methoxy-2β-methylpiperidine, 6-(deca-l′, 3′, 5′-trienyl)-3-methoxy-2-methylpiperidine, N-methyl-6- (deca-l′, 3′, 5′-trienyl)-2, 3-dimethylpiperidine and N-methyl-6-(deca-l′, 3′, 5′-trienyl)-2-methylpiperidine, named as micropiperidine A, micropiperidine B, micropiperidine C and micropiperidine D, respectively.  The latter three are new compounds.