Synthesis of 2,2- and 2,5-Disubstituted 1-Oxyl Pyrrolidine Radicals as New Homobifunctional Cross-Linking Spin Labels
作者:Kálmán Hideg、Tamás Kálai、József Jekő、Wayne L. Hubbell
DOI:10.1055/s-2003-41053
日期:——
The synthesis of 2,2- and 2,5-disubstituted pyrrolidine nitroxide radicals starting from readily available nitrones 1, 11 is described. The stable radicals are acylating (10, 20), alkylating (7, 17) and thiol-specific (8,18) reagents capable of producing crosslinks in proteins over distances in the range of 10-15 A.
描述了从容易获得的硝酮 1、11 开始合成 2,2-和 2,5-二取代的吡咯烷氮氧自由基。稳定的自由基是酰化 (10, 20)、烷基化 (7, 17) 和硫醇特异性 (8,18) 试剂,它们能够在 10-15 A 范围内的距离上在蛋白质中产生交联。