New 5-benzylidenethiazolidin-4-one inhibitors of bacterial MurD ligase: Design, synthesis, crystal structures, and biological evaluation
摘要:
Mur ligases (MurC-MurF), a group of bacterial enzymes that catalyze four consecutive steps in the formation of cytoplasmic peptidoglycan precursor, are becoming increasingly adopted as targets in antibacterial drug design. Based on the crystal structure of MurD cocrystallized with thiazolidine-2,4-dione inhibitor I, we have designed, synthesized, and evaluated a series of improved glutamic acid containing 5-benzylidenerhodanine and 5-benzylidenethiazolidine-2,4-dione inhibitors of MurD with IC50 values up to 28 mu M. Inhibitor 37, with an IC50 of 34 mu M, displays a weak antibacterial activity against S. aureus ATCC 29213 and E. faecalis ATCC 29212 with minimal inhibitory concentrations of 128 mu g/mL. High-resolution crystal structures of MurD in complex with two new inhibitors (compounds 23 and 51) reveal details of their binding modes within the active site and provide valuable information for further structure-based optimization. (C) 2011 Elsevier Masson SAS. All rights reserved.
Twenty-four novel β-carboline/acylhydrazonehybrids were synthesized and evaluated for their in vitro antiproliferative activity. Among them, 12r exhibited the most potent activity, with IC50 values of 1–2 μM against panel of cancer cell lines and retained significant activity in multidrug resistant cancer cells. Treated cells were not arrested in any phase of cell cycle but resulted in late cellular
Compounds of formula (I) defined herein are both phosphodiesterase 4 (PDE4) enzyme inhibitors and muscarinic M3 receptor antagonists and are useful for the prevention and/or treatment of diseases of the respiratory tract.
[EN] NOVEL BARBITURIC ACID DERIVATIVES, THEIR PREPARATION AND USE THEREOF AS LEUKOCYTE TRANSMIGRATION INHIBITORS AND FOR TREATING INFLAMMATORY DISEASES, AUTOIMMUNE DISEASES AND CANCER<br/>[FR] NOUVEAUX DÉRIVÉS D'ACIDE BARBITURIQUE, LEUR PRÉPARATION ET LEUR UTILISATION EN TANT QU'INHIBITEURS DE LA TRANSMIGRATION DE LEUCOCYTES, LE TRAITEMENT DE MALADIES INFLAMMATOIRES, DE MALADIES AUTO-IMMUNES ET DU CANCER
申请人:UNIV BAR ILAN
公开号:WO2019043706A1
公开(公告)日:2019-03-07
Provided herein are novel barbituric acid derivatives, their synthesis and use thereof in blocking leukocyte transmigration. The novel barbituric acid derivatives are useful for the treatment of disorders associated with leukocyte transmigration, such as for example inflammatory diseases and disorders, autoimmune diseases and disorders, and cancers.
Compounds of formula (I) defined herein are both phosphodiesterase 4 (PDE4) enzyme inhibitors and muscarinic M3 receptor antagonists and are useful for the prevention and/or treatment of diseases of the respiratory tract.