Design, Synthesis, Antibacterial, and Antitumor Activity of Linear Polyisocyanide Quaternary Ammonium Salts with Different Structures and Chain Lengths
作者:Hongguang Zhang、Lijia Liu、Peng Hou、Jun Liu、Shuang Fu
DOI:10.3390/molecules26185686
日期:——
antimicrobial activity with MICs of 27 μg/mL against E. coli and 32 μg/mL against S. aureus. When the L-PQASs had the same polymerization degree, the order of the antibacterial activity of the L-PQASs was L-POcQAS-Mn > L-PBuQAS-Mn > L-PBnQAS-Mn > L-PDBQAS-Mn (linear, polyisocyanide quaternary ammonium salt, monomer, n = 50,100). However, when L-PQASs had the same side chain, the antibacterial activity reduced
用于消毒和灭菌的有机聚合物材料的开发被认为是解决有害微生物生长和传播的最有前途的途径之一。本文通过含有4-氯-1-丁基侧链的苯基异氰化物单体聚合,然后进行季胺化盐化,设计并合成了一系列具有不同结构和链长的线性多异氰化物季铵盐(L-PQAS)。所得化合物通过1 H NMR 和 FT-IR 进行表征。通过测定最低抑菌浓度(MIC)来评价不同结构和链长的L-PQAS对大肠杆菌( E. coli )和金黄色葡萄球菌( S. aureus )的抗菌活性。 L-POcQAS-M 50具有最强的抗菌活性,对大肠杆菌的 MIC 为 27 μg/mL,对金黄色葡萄球菌的 MIC 为 32 μg/mL。当L-PQAS具有相同聚合度时,L-PQAS的抗菌活性顺序为L-POcQAS-M n > L-PBuQAS-M n > L-PBnQAS-M n > L-PDBQAS-M n (直链,多异氰化物季铵盐,单体, n