Synthesis, characterization, antimicrobial and biofilm inhibitory studies of new esterquats
作者:Sathyam Reddy Yasa、Shiva Shanker Kaki、Y. Poornachandra、C. Ganesh Kumar、Vijayalakshmi Penumarthy
DOI:10.1016/j.bmcl.2016.03.002
日期:2016.4
followed by ion exchange to afford chloride counter ion esterquats (5a–h). The synthesized esterquat products were studied for their antimicrobial and biofilm inhibitory activities. Among all the compounds, amine ester 3a and esterquat 5d showed potent antimicrobial activity towards pathogenic Gram-positive bacterial strains with minimum inhibitory concentration (MIC) values in the range of 3.9–15
由11-溴十一酸(11-BUA)和不同的烷基胺合成了新的酯季铵盐(单酯季铵盐和二酯季铵盐)。通过FT-IR,1 H NMR,13 C NMR和质谱分析对所制备的化合物进行表征。11-BUA转化为11-溴十一烷酸甲酯,通过与不同的脂肪胺(己基,十二烷基,十八烷基,二辛基和二环己基胺)反应,进一步转化为胺酯(胺单酯和二酯)。最后,将获得的胺酯与甲基碘反应,然后进行离子交换,将其转化为酯季铵盐(单酯季铵盐和二酯季铵盐)(5a – h)。研究了合成的酯季铵盐产品的抗菌和生物膜抑制活性。在所有的化合物中,胺酯3A和酯季铵盐5D显示朝向与最低抑制浓度病原菌革兰氏阳性细菌菌株的抗菌活性在3.9-15.6微克mL范围内(MIC)值-1和1.9-7.8微克毫升-1,分别。esterquat 5d还显示出对白色念珠菌MTCC 3017,白色念珠菌MTCC 4748和白色念珠菌MTCC 1962菌株的有希望的抗真菌活性,MIC值为7