Fragment-to-Hit-to-Lead Discovery of a Novel Pyridylurea Scaffold of ATP Competitive Dual Targeting Type II Topoisomerase Inhibiting Antibacterial Agents
作者:Gregory S. Basarab、John I. Manchester、Shanta Bist、P. Ann Boriack-Sjodin、Brian Dangel、Ruth Illingworth、Brian A. Sherer、Shubha Sriram、Maria Uria-Nickelsen、Ann E. Eakin
DOI:10.1021/jm401208b
日期:2013.11.14
The discovery and optimization of a new class of bacterial topoisomerase (DNA gyrase and topoisomerase IV) inhibitors binding in the ATP domain are described. A fragment molecule, 1-ethyl-3-(2-pyridyl)urea, provided sufficiently potent enzyme inhibition (32 μM) to prompt further analogue work. Acids and acid isosteres were incorporated at the 5-pyridyl position of this fragment, bridging to a key asparagine