Chemo- and Site-Selective Alkyl and Aryl Azide Reductions with Heterogeneous Nanoparticle Catalysts
作者:Venkatareddy Udumula、S. Hadi Nazari、Scott R. Burt、Madher N. Alfindee、David J. Michaelis
DOI:10.1021/acscatal.6b01217
日期:2016.7.1
to generating new leads for drug discovery. Herein, we show that heterogeneous nanoparticle catalysts enable site-selective monoreduction of polyazide substrates for the generation of aminoglycoside antibiotic derivatives. The nanoparticle catalysts are highly chemoselective for reduction of alkyl and aryl azides under mild conditions and in the presence of a variety of easily reduced functional groups
生物活性天然产物的位点选择性修饰是产生用于药物发现的新线索的有效方法。在这里,我们表明,异质纳米颗粒催化剂能够实现聚叠氮化物底物的位点选择性单还原,以生成氨基糖苷类抗生素衍生物。纳米颗粒催化剂在温和条件下和在各种容易还原的官能团存在下对烷基和芳基叠氮化物的还原具有高度的化学选择性。已显示出用于单叠氮化物还原的高区域选择性有利于空间上受阻最小的叠氮化物的还原。我们假设观察到的选择性源自较少受阻的叠氮化物基团与纳米颗粒催化剂表面相互作用的更大能力。