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Relevant academic research and scientific papers

2-Dialkynyl derivatives of (N)-methanocarba nucleosides: 'Clickable' A3 adenosine receptor-selective agonists

We modified a series of (N)-methanocarba nucleoside 5′-uronamides to contain dialkyne groups on an extended adenine C2 substituent, as synthetic intermediates leading to potent and selective A3 adenosine receptor (AR) agonists. The proximal alk

Synthesis and antibacterial activity of isothiazolyl oxazolidinones and analogous 3(2H)-isothiazolones

The synthesis and antibacterial activity of several new 5-((3-oxoisothiazol-2(3H)-yl)methyl)-3-phenyloxazolidin-2-ones 8 and analogous 2-(4-substituted phenyl)-3(2H)-isothiazolones 3 and 4 substituted at 4 and/or 3-positions of the phenyl moiety with different groups of which some have shown to increase the antibacterial activity of both 3-aryl-2-oxazolidinones and 3(2H)-isothiazolones is described. The most active compounds were isothiazolyl oxazolidinones 8a,j with unsubstituted and 8b with 4-F substituted phenyl rings which showed activities higher than analogous 3(2H)-isothiazolones and comparable or superior to linezolid, vancomycin, and ciprofloxacin against some tested microorganisms. The change in position of F and/or the use of larger substituents gave compounds with reduced or no activity. Evaluation of cytotoxicity to mouse fibroblast (NIH/3T3) cells indicated that these compounds exhibit antibacterial activity at non-cytotoxic concentrations.

Synthesis and antibacterial activity of 2-(4-substituted phenyl)-3(2H)-isothiazolones

Several new and known 2-(4-substituted phenyl)-3(2H)-isothiazolone derivatives with or without chloro substituent at C-5 position were synthesized and their in vitro antibacterial activity against selected Gram-negative and Gram-positive bacteria were eva