A New DNA Gyrase Inhibitor Subclass of the Cyclothialidine Family Based on a Bicyclic Dilactam−Lactone Scaffold. Synthesis and Antibacterial Properties
作者:Peter Angehrn、Erwin Goetschi、Hans Gmuender、Paul Hebeisen、Michael Hennig、Bernd Kuhn、Thomas Luebbers、Peter Reindl、Fabienne Ricklin、Anne Schmitt-Hoffmann
DOI:10.1021/jm1014023
日期:2011.4.14
The DNA gyrase inhibitor cyclothialidine had been shown to be a valuable lead structure for the discovery of new antibacterial classes able to overcome bacterial resistance to clinically used drugs. Bicyclic lactone derivatives containing in their 12−14-membered ring a thioamide functionality were reported previously to exhibit potent antibacterial activity against Gram-positive bacteria. Moderate
对于发现能够克服细菌对临床使用药物的耐药性的新型抗菌剂而言,DNA回旋酶抑制剂环噻啶已被证明是有价值的先导结构。先前已报道在其12-14元环中含有硫酰胺官能团的双环内酯衍生物对革兰氏阳性细菌表现出有效的抗菌活性。然而,仅对于带有亲水性取代基的衍生物证明了中等的体内功效,发现该衍生物对药物动力学具有有利的影响,并减少了代谢降解,特别是葡萄糖醛酸化。将一个额外的酰胺单元掺入环噻啶类似物的14元单内酰胺-内酯支架中,提供了一种新的固有的极性更高的DNA促旋酶抑制剂“双内酰胺”亚类。