作者:Martin G Banwell、Curtis F Crasto、Christopher J Easton、Andrew K Forrest、Tomislav Karoli、Darren R March、Lucy Mensah、Michael R Nairn、Peter J O'Hanlon、Mark D Oldham、Weimin Yue
DOI:10.1016/s0960-894x(00)00456-x
日期:2000.10
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
SB-203207和10个类似物通过拟定altemicidin的方法制备,并被评估为异亮氨酰,亮氨酰和缬氨酰tRNA合成酶的抑制剂(分别为IRS,LRS和VRS)。用亮氨酸和缬氨酸取代SB-203207的异亮氨酸残基分别增加了抑制LRS和VRS的能力。亮氨酸衍生物显示出低水平的抗菌活性,而几种化合物对金黄色葡萄球菌WCUH29的IRS的抑制作用比对大鼠肝脏IRS的抑制作用更强。