State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
Chem Commun (Camb). 2018 Dec 13;54(100):14089-14092. doi: 10.1039/c8cc08533a.
Sulfonamide derivatives have been used in pharmaceutics for decades. Here we report a new approach to release sulfonamides efficiently using a bioorthogonal reaction of sulfonyl sydnonimines and dibenzoazacyclooctyne (DIBAC). The second-order rate constant of the cycloaddition reaction can be up to 0.62 M-1 s-1, and the reactants are highly stable under physiological conditions. Most significantly, we also discovered the mutual orthogonality between the sydnonimine-DIBAC and benzonorbornadiene-tetrazine cycloaddition pairs, which can be used for selective and simultaneous liberation of sulfonamide and primary amine drugs.
磺胺衍生物在药剂学中已经使用了几十年。在这里,我们报告了一种使用磺酰基吖丙啶和二苯并氮杂环辛炔(DIBAC)的生物正交反应来有效释放磺胺类药物的新方法。环加成反应的二级速率常数可达 0.62 M-1 s-1,并且反应物在生理条件下非常稳定。最重要的是,我们还发现了 sydnonimine-DIBAC 和 benzonorbornadiene-tetrazine 环加成对之间的相互正交性,可用于选择性和同时释放磺胺类和伯胺类药物。