linkage joining two thiols. The reactivity of various Michael-alkyne reagents is compared in this chemoselective, atom economical, and non-oxidative cross-linking of two thiols. The stability and chemical reactivity of the dithioacetal links are studied, and the utility of the disulfide targeting bioconjugation methodology is shown by the selective rebridging of native cyclic peptides after the reductive
简单的 1-
苯基丙酮在缓冲介质中与
硫醇发生选择性双
硫杂迈克尔加成,产生连接两个
硫醇的有趣的二
硫缩醛键。在两种
硫醇的
化学选择性、原子经济性和非氧化性交联中比较了各种迈克尔-炔试剂的反应性。研究了二
硫缩醛连接的稳定性和
化学反应性,并通过在二
硫键还原断裂后选择性地重新桥接天然环肽,展示了二
硫键靶向
生物共轭方法的实用性。