作者:Andreas Ritzén、Torbjörn Frejd
DOI:10.1039/a805350b
日期:——
The cyclisation of a meta-phenylene-bis-alanine derivative with several different spacer moieties was investigated. A large difference in the ease of cyclisation was observed depending on which path of cyclisation was chosen. NMR studies indicate that the closed-loop molecules adopt folded conformations with the loop directly above the aromatic ring plane.
我们研究了具有几种不同间隔分子的偏苯二丙氨酸衍生物的环化过程。根据选择的环化路径,观察到环化的难易程度存在很大差异。核磁共振研究表明,闭环分子采用折叠构象,环直接位于芳香环平面之上。