Succinimide-Linked Nitrone: Synthesis and ESR Studies
链接琥珀酰亚胺的线性硝酮的合成与ESR研究

A novel linear nitrone spin-trap, DSC-PBN (N-(4-(((2,5-dioxopyrrolidin-1-yloxy)carbonyloxy)methyl)benzylidene)-2-methylpropan-2-N-oxide), was designed and synthesized. Its structure was characterized by UV, MS and 1H NMR techniques. ESR results showed that the compound could be used to trap various free radicals efficiently, and the ESR spectra of the trapped radicals were readily recognizable. DSC-PBN could easily form a covalent link to the N-terminal peptides (or proteins) via succinimide intermediates, thus showing high potential for biological applications.