Synthesis of 13C- and 15N-labelled tert-butoxycarbonyl (boc) glycines and glycine amides as precursors and simple models of backbone-labelled peptides
作者:Leif Grehn、Ulf Bondesson、T�nis Pehk、Ulf Ragnarsson
DOI:10.1039/c39920001332
日期:——
Boc-derivatives of the six 13C-labelled glycines with or without 15N have been prepared by a direct approach from the corresponding bromoacetates and three of them converted into 15N-labelled amides by an efficient procedure to give isotopomers with 2–4 adjacent 13C and 15N nuclei; their coupling constants have been recorded.
通过一种直接的方法,从相应的溴乙酸酯制备出了六种含有或不含 15N 的 13C 标记甘氨酸的 Boc 衍生物,并通过一种有效的程序将其中三种转化为 15N 标记的酰胺,从而得到具有 2-4 个相邻 13C 和 15N 原子核的同位素;记录了它们的耦合常数。