山蓝色素前体的分子组成和化学变化

The molecular constitution and chemical change of the precursor of the pigment from Peri- strophe baphica by LC-NMR technique

山蓝色素前体是很不稳定的化合物。用液相色谱-核磁共振谱联用的技术,结合紫外光谱的变化,研究山蓝色素前体的分子组成及化学变化。表明山蓝色素前体分子有由2个紫蓝氨酸残基和1个氨基酚残基键合而成的片段,在室温下放置后,氨基酚结构转变为醌结构。研究结果为山蓝色素前体、山蓝色素及其相关化合物的结构测定提供了重要数据,为山蓝色素的化学、山蓝色素形成机理的阐明起到了关键作用。

The precursor of the pigment from Peristrophe baphica is an unstable compound. The molecular constitution and chemical change of the precursor of the pigment from Peristrophe baphica was elucidated by combination of LC with NMR and UV technique. The precursor consist with 2 moieties of zilanamino acid and 1 moiety of aminophenol. And the aminophenol moiety of the precursor turn into quinone as its acidic solution was placed at room temperature for several hours. This technique provided significant data for the structure determination of the precursor,the pigment and other related compounds and played an important part in the elucidation of the chemistry and the formation mechanism of the pigment.