作者:Ian J.G. Climie、David A. Evans
DOI:10.1016/0040-4020(82)80213-5
日期:1982.1
proton-decoupled 13C-nuclear magnetic resonance spectra have been determined and in almost all cases, each carbon resonance has been unambiguously assigned by a combination of off-resonance and specific decoupling techniques. The effect of solvent and pH on chemical shifts is discussed. The objective of these studies is to provide models relevant to the use of 13C-labelled electrophilic inhibitors as probes of enzyme
报道了氨基和羧基保护的赖氨酸,丝氨酸和半胱氨酸以及两个三肽的侧链衍生物的合成和表征。已确定了宽带质子去耦的13 C核磁共振波谱,并且在几乎所有情况下,通过共振和特定的去耦技术的组合,每个碳共振都得到了明确的分配。讨论了溶剂和pH值对化学位移的影响。这些研究的目的是提供与使用13 C标记的亲电子抑制剂作为酶活性位点环境探针有关的模型。