Author/Authors :
Martin G. Banwell، نويسنده , , Curtis F. Crasto، نويسنده , , Christopher J. Easton، نويسنده , , Andrew K. Forrest، نويسنده , , Tomislav Karoli، نويسنده , , Darren R. March، نويسنده , , Lucy Mensah، نويسنده , , Michael R. Nairn، نويسنده , , Peter J. OʹHanlon، نويسنده , , Mark D. Oldham، نويسنده , , Weimin Yue، نويسنده ,
Abstract :
SB-203207 and 10 analogues have been prepared, by elaboration of altemicidin, and evaluated as inhibitors of isoleucyl,. leucyl and valyl tRNA synthetases (IRS, LRS, and VRS, respectively). Substituting the isoleucine residue of SB-203207 with leucine and valine increased the potency of inhibition of LRS and VRS, respectively. The leucine derivative showed low level antibacterial activity, while several of the compounds inhibited IRS from Staphylococcus aureus WCUH29 more strongly than rat liver IRS.
