Seventeen alkyl-substituted quaternary pyridinium compounds were synthesized by the condensation reaction of amino acids and primary amines with alkanals. The growth-inhibitorycapabilities of these pyridiniums were investigated against gram-negative and gram-positive bacteria (Escherichia coli and Streptococcus thermophilus), as well as against a mold (Neurospora crassa) and yeast (Candida utilis). Most of the pyridiniums appreciably inhibited the growth of the microorganisms tested. 1-Carboxymethyl-2-hexyl-3,5-dipentylpyridinium betaine and 1-(2-hydroxyethyl)-2-hexyl-3,5-dipentylpyridiriium chloride showed the greatest inhibitory activity. Least growth inhibition by pyridinium ions was observed for E. coli.
通过
氨基酸和
伯胺与
烷烃的缩合反应,合成了 17 种烷基取代的季
铵盐
吡啶化合物。研究了这些
吡啶鎓对革兰氏阴性和革兰氏阳性细菌(大肠杆菌和嗜热链球菌)以及霉菌(Neurospora crassa)和酵母菌(Candida utilis)的生长抑制能力。大多数
吡啶鎓都能明显抑制受试微
生物的生长。1-羧甲基-2-己基-3,5-二戊基
吡啶鎓
甜菜碱和 1-(2-羟乙基)-2-己基-3,5-二戊基
吡啶鎓
氯化物的抑制活性最强。
吡啶鎓离子对大肠杆菌的生长抑制作用最小。