Conjugation of a New Series of Dithiocarbazate Schiff Base Copper(II) Complexes with Vectors Selected to Enhance Antibacterial Activity
作者:May Lee Low、Laure Maigre、Pierre Dorlet、Régis Guillot、Jean-Marie Pagès、Karen A. Crouse、Clotilde Policar、Nicolas Delsuc
DOI:10.1021/bc5004907
日期:2014.12.17
with methyl levulinate (SMML, SBML), levulinic acid (SMLA, SBLA), and 4-carboxybenzaldehyde (SM4CB, SB4CB) were reacted with copper(II), producing complexes of general formula ML2 (M = Cu(II), L = ligand). All compounds were characterized using established physicochemical and spectroscopic methods. Crystal structures were determined for three Schiff bases (SMML, SBML, SBLA) and two Cu(II) complexes
由S-甲基二硫代氨基甲酸酯(SMDTC)和S-苄基二硫代氨基甲酸酯(SBDTC)与乙酰丙酸甲酯(SMML,SBML),乙酰丙酸(SMLA,SBLA)和4-羧基苯甲醛(SM4CB,SB4CB)衍生的一系列六个席夫碱新反应与铜(II)生成通式ML 2(M = Cu(II),L =配体)的配合物。所有化合物均使用已建立的物理化学和光谱方法进行了表征。确定了三个席夫碱(SMML,SBML,SBLA)和两个Cu(II)配合物(Cu(SMML)2和Cu(SMLA)2的晶体结构)。为了提供对络合物在溶液中行为的更多了解,进行了电子顺磁共振(EPR)和电化学实验。母体配体及其各自的铜(II)配合物对革兰氏阴性菌和革兰氏阳性菌均表现出中等的抗菌活性。活性最高的配体(SB4CB)及其类似的S-甲基衍生物(SM4CB)与各种载体部分缀合:聚精氨酸(R1,R4,R9和RW9),低聚乙二醇(OEG)和外排泵阻滞剂苯