Design of New Derivatives of Nitrone DEPMPO Functionalized at C-4 for Further Specific Applications in Superoxide Radical Detection
作者:Florence Chalier、Micaël Hardy、Olivier Ouari、Antal Rockenbauer、Paul Tordo
DOI:10.1021/jo071070s
日期:2007.10.1
offering new perspectives for targeted delivery applications. A short study of the trapping behaviors of the (4R*,5S*)-isomer of these 4-HMDEPMPO analogues proved that they are as good as DEPMPO for detecting superoxide. For each isomer, only one diastereoisomer adduct was obtained, resulting from the addition of superoxide on the less hindered face of the nitrone, that is, trans to the phosphoryl group
通过合成4-HMDEPMPO硝酮(5-二乙氧基磷酰基-4-),建立了制备在C-4上官能化的DEPMPO硝酮(5-二乙氧基磷酰基-5-甲基-1-吡咯啉-N-氧化物)衍生物的一般合成路线。硝基化合物1还原制得的羟甲基-5-甲基-1-甲基-1-吡咯啉-N-氧化物)。(4 R *,5 S *)-4-HMDEPMPO已成功与其次要的非对映异构体分离,可用于生成各种取代的类似物。其中,4-NHSDEPMPO,5-二乙氧基磷酰基-4-琥珀酰亚胺基氧基羰基氧基甲基-5-甲基-1-吡咯啉-N-氧化物构成NH 2。-反应性前体,用于进一步偶联至相关部分,例如靶向基团,标记或药物。由4-NHSDEPMPO合成了生物素化的硝酮,为靶向递送应用提供了新的视角。简短研究了这些4-HMDEPMPO类似物的(4 R *,5 S *)异构体的俘获行为,证明它们与DEPMPO一样能检测超氧化物。对于每种异构体,仅获得一种非对