Thermal and Photoinduced Copper-Promoted C–Se Bond Formation: Synthesis of 2-Alkyl-1,2-benzisoselenazol-3(2<i>H</i>)-ones and Evaluation against <i>Mycobacterium tuberculosis</i>
作者:Sandeep Thanna、Christopher M. Goins、Susan E. Knudson、Richard A. Slayden、Donald R. Ronning、Steven J. Sucheck
DOI:10.1021/acs.joc.7b00440
日期:2017.4.7
mechanism. A library of 15 2-alkyl-1,2-benzisoselenazol-3(2H)-ones was prepared. One member of the library was azide-containing derivative 1j that was competent to undergo a strain-promoted azide–alkyne cycloaddition. The library was evaluated for inhibition of Mycobacterium tuberculosis (Mtb) growth and Mtb Antigen 85C (Mtb Ag85C) activity. Compound 1f was most potent with a minimal inhibitory concentration
以ebselen(1a)为代表的2-烷基-1,2-苯并硒代咪唑-3(2 H)-酮正在广泛地用于一系列医学应用中。我们都描述了一种新的热和光致铜介导的硒氰酸钾(KSeCN)和之间的交叉耦合Ñ取代邻-halobenzamides以形成2-烷基-1,2-苯并异硒唑-3(2 ħ) -酮含有C-硒键。铜配体(1,10-菲咯啉)通过可能涉及原子转移(AT)的机制促进加热过程中C-Se键的形成,而在没有配体的情况下,光诱导的活化可能通过单电子转移(SET)进行机制。一个15 2-烷基-1,2-苯并亚硒唑-3(2 H)-准备好了。文库的一个成员是含叠氮化物的衍生物1j,它能够经受应变促进的叠氮化物-炔烃环加成反应。评价该文库对结核分枝杆菌(Mtb)生长和Mtb抗原85C(Mtb Ag85C)活性的抑制作用。化合物1f最有效,最小抑制浓度(MIC)为12.5μg/ mL,Mtb Ag85C表观IC 50为8