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Synthesis and antibacterial activity of novel phosphonium salts on the basis of pyridoxine
Authors
Abdullin T.
Berdnikov E.
+8 more
Iksanova A.
Ilaeva A.
Musin R.
Nikitina E.
Pugachev M.
Shtyrlin N.
Shtyrlin Y.
Sysoeva L.
Publication date
1 March 2020
Publisher
Abstract
A series of 13 phosphonium salts on the basis of pyridoxine derivatives were synthesized and their antibacterial activity against clinically relevant strains was tested in vitro. All compounds were almost inactive against gram-negative bacteria and exhibited structure-dependent activity against gram-positive bacteria. A crucial role of ketal protection group in phosphonium salts for their antibacterial properties was demonstrated. Among synthesized compounds 5,6-bis[triphenylphosphonio(methyl)]-2,2,8-trimethyl-4H-[1,3] dioxino[4,5-c]pyridine dichloride (compound 20) was found to be the most effective towards Staphylococcus aureus and Staphylococcus epidermidis strains (MIC 5 μg/ml). The mechanism of antibacterial activity of this compound probably involves cell penetration and interaction with genomic and plasmid DNA. © 2013 Elsevier Ltd. All rights reserved
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Last time updated on 04/04/2020