我们报告了一种新型 4-氨基喹啉基分子镊子1的设计和合成,该分子镊子通过在 DMSO 和 HEPES 缓冲液(pH 7.4)混合溶剂系统中的多重相互作用与原卟啉 IX (PPIX) 形成稳定的主客体复合物。1和PPIX之间的1:1复合物( K 11 )的结合常数确定为4×10 6 M -1。此外,1还与铁( III )原卟啉IX(Fe( III )PPIX)形成更稳定的络合物,其K 11值比PPIX大一个数量级,表明1可以作为识别合成血红素传感器的单元。另一方面,稳定的PPIX· 1复合物(超分子光敏剂)的形成促使我们将其应用于光动力治疗(PDT)。使用超分子光敏剂的细胞染色实验及其光细胞毒性评价表明,PPIX 的 PDT 活性由于与1形成复合物而得到提高。
Lewis Acid-Catalyzed Generation of CC and CN Bonds on π-Deficient Heterocyclic Substrates
作者:Matteo Staderini、Maria Laura Bolognesi、J. Carlos Menéndez
DOI:10.1002/adsc.201400674
日期:2015.1.12
to the efficient and completely regioselective generation of aromatic CC and CNbonds. The method is simple, rapid, general and inexpensive, and can be performed without the use of dried solvents. Most of the synthetized compounds are new and in many cases the work‐up required only filtration. Furthermore, this is the first example of the use of a Lewis acid as a catalyst for heteroarylation, vinylation
Synthesis and in vitro antitubercular activity of a series of quinoline derivatives
作者:Marcus V.N. de Souza、Karla C. Pais、Carlos R. Kaiser、Mônica A. Peralta、Marcelle de L. Ferreira、Maria C.S. Lourenço
DOI:10.1016/j.bmc.2009.01.013
日期:2009.2
A series of 33 quinolinederivatives have been synthesized and evaluated for their in vitro antibacterial activity against Mycobacterium tuberculosis H37Rv using the Alamar Blue susceptibility test and the activity expressed as the minimum inhibitory concentration (MIC) in μg/mL. Compounds 5e and 5f exhibited a significant activity at 6.25 and 3.12 μg/mL, respectively, when compared with first line