Synthesis and antibacterial activity of novel phosphonium salts on the basis of pyridoxine.

Basic Information

ID: ALA2396649

Journal: Bioorg Med Chem

Title: Synthesis and antibacterial activity of novel phosphonium salts on the basis of pyridoxine.

Authors: Pugachev MV, Shtyrlin NV, Sysoeva LP, Nikitina EV, Abdullin TI, Iksanova AG, Ilaeva AA, Musin RZ, Berdnikov EA, Shtyrlin YG.

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 5μg/ml). The mechanism of antibacterial activity of this compound probably involves cell penetration and interaction with genomic and plasmid DNA.

CiteXplore: 23683836

DOI: 10.1016/j.bmc.2013.04.051

Patent ID: