Bis-phosphonium salts of pyridoxine: The relationship between structure and antibacterial activity
作者:Mikhail V. Pugachev、Nikita V. Shtyrlin、Sergey V. Sapozhnikov、Lubov P. Sysoeva、Alfiya G. Iksanova、Elena V. Nikitina、Rashid Z. Musin、Olga A. Lodochnikova、Eugeny A. Berdnikov、Yurii G. Shtyrlin
DOI:10.1016/j.bmc.2013.09.056
日期:2013.12
A series of 23 novel bis-phosphonium salts based on pyridoxine were synthesized and their antibacterial activities were evaluated in vitro. All compounds were inactive against gram-negative bacteria and exhibited the structure-dependent activity against gram-positive bacteria. The antibacterial activity enhanced with the increase in chain length at acetal carbon atom in the order n-Pr > Et > Me. Further
合成了一系列基于吡ido醇的23种新型双salts盐,并对其体外抗菌活性进行了评估。所有化合物对革兰氏阴性菌均无活性,并且对革兰氏阳性菌表现出结构依赖性活性。随着乙缩醛碳原子上链长的增加,抗菌活性增强,顺序为n -Pr> Et> Me。烷基链的长度和支链的进一步增加导致抗菌活性降低。5,6-双(三苯基膦基(甲基)-2,2,2,8-三甲基-4 H- [1,3]-二氧[4,5- c ]吡啶二氯化物(化合物1)与正丁基,m-甲苯基或对甲苯基以及含溴化物的化合物1中的氯阴离子(化合物14a)将其对金黄色葡萄球菌和表皮葡萄球菌的活性提高了5倍(MIC = 1–1.25μg/ ml)。但实际上在所有情况下,化合物1的化学修饰都导致其对HEK-293细胞的毒性增加。唯一的例外是化合物5,6-双[三丁基膦基(甲基)]-2,2,8-三甲基-4 H- [1,3]二氧杂[4,5- c ]吡啶二氯化物(10a),