Synthesis, Characterization, and Antibacterial Activity of Structurally Complex 2-Acylated 2,3,1-Benzodiazaborines and Related Compounds
作者:Divya Kanichar、Lance Roppiyakuda、Ewa Kosmowska、Michelle A. Faust、Kim P. Tran、Felicia Chow、Elena Buglo、Michael P. Groziak、Evan A. Sarina、Marilyn M. Olmstead、Isba Silva、H. Howard Xu
DOI:10.1002/cbdv.201400007
日期:2014.9
the anhydro dimers, 17c, revealed it to have an unprecedented structure featuring a double intramolecular O→B chelation. The crystal structure of another compound, 37, showed it to be based on a new pentacyclic B heterocycle framework. Nine compounds were found to possess activities against E. coli, and two others were active against M. smegmatis. The finding that these two contain isoniazid covalently
合成,表征和测试了一组2-酰化的2,3,1-苯并二氮杂硼烷和一些相关的硼杂环对大肠杆菌和耻垢分枝杆菌的抗菌活性。通过高场溶液NMR,发现迄今未知的2-酰基-1-羟基-2,3,1-二氮杂硼烷类化合物能够沿着由开放a组成的连续体以几种可相互转化的结构形式存在。单体B-羟基重氮茶碱b和脱水二聚体c。脱水二聚体之一17c的X射线晶体学分析表明,它具有前所未有的结构,具有双重分子内O→B螯合的特征。另一个化合物37的晶体结构表明,它基于新的五环B杂环骨架。发现9种化合物对大肠杆菌具有活性,其他两个人则活跃于耻垢分枝杆菌。这两个在其结构中包含共价嵌入的异烟肼的发现表明,它们可能在体内充当了这种众所周知的抗结核药的前药。