Herein, we describe a methodology for iminosydnone chlorination and we demonstrate the high beneficial effect of this modification on the reactivity of these mesoionic dipoles in strain-promoted cycloaddition reactions. Exploiting their reaction with cyclooctynes, we used these new iminosydnones for bioorthogonal release of amide, urea and sulfonamide containing drugs. Notably, drugs containing a terminal
在此,我们描述了一种亚
氨基西酮
氯化的方法,并证明了这种修饰对这些中间离子偶极子在应变促进的环加成反应中的反应性的高度有益影响。利用它们与
环辛炔的反应,我们使用这些新的亚
氨基糖酮来
生物正交释放含有酰胺、
尿素和磺酰胺的药物。值得注意的是,含有末端酰胺功能的药物首次以良好的动力学常数释放。