A γ-Lactam Siderophore Antibiotic Effective against Multidrug-Resistant Gram-Negative Bacilli
作者:Joel A. Goldberg、Ha Nguyen、Vijay Kumar、Elizabeth J. Spencer、Denton Hoyer、Emma K. Marshall、Anna Cmolik、Margaret O’Shea、Steven H. Marshall、Andrea M. Hujer、Kristine M. Hujer、Susan D. Rudin、T. Nicholas Domitrovic、Christopher R. Bethel、Krisztina M. Papp-Wallace、Latania K. Logan、Federico Perez、Michael R. Jacobs、David van Duin、Barry M. Kreiswirth、Robert A. Bonomo、Mark S. Plummer、Focco van den Akker
DOI:10.1021/acs.jmedchem.0c00255
日期:2020.6.11
Treatment of multidrug-resistant Gram-negative bacterial pathogens represents a critical clinical need. Here, we report a novel gamma-lactam pyrazolidinone that targets penicillin-binding proteins (PBPs) and incorporates a siderophore moiety to facilitate uptake into the periplasm. The MIC values of gamma-lactam YU253434, 1, are reported along with the finding that 1 is resistant to hydrolysis by all four classes of beta-lactamases. The druglike characteristics and mouse PK data are described along with the X-ray crystal structure of 1 binding to its target PBP3.