Starting from 3-bromo-4-formyl- or 3-bromo-4-cyano-2,2,5,5,-tetramethyl-2,5-dihydro-1H-pyrrol-1-yloxyl radicals, 2-substituted and 2,3-disubstituted 5H-selenolo[2,3-c]pyrrol-5-yloxyl radicals were synthesized. The 2-(bromomethyl)-substituted 5H-selenolo[2,3-c]pyrrol-5-yloxyl derivative was a key intermediate in the synthesis of a thiol specific methanethiosulfonate spin label reagent, a paramagnetic
从3-溴-4-甲酰基-或3-溴-4-氰基-2,2,5,5,-四甲基-2,5-二氢-1 H-吡咯-1-基氧基开始,被2-取代和合成了2,3-二取代的5 H-硒代[2,3 - c ]吡咯-5-基氧基。2-(溴甲基)-取代的5 H-硒代[2,3 - c ]吡咯-5-基氧基衍生物是合成巯基特异性甲烷硫代磺酸盐自旋标记试剂(一种顺磁性,亚硒环的氨基酸)的关键中间体,以及新的喹唑啉-4(3 H)-一衍生物。 氨基酸-烷基化-自由基-杂环-硒