225942-73-4Relevant articles and documents
Novel inhibitors of leukocyte transendothelial migration
Getter, Tamar,Margalit, Raanan,Kahremany, Shirin,Levy, Laura,Blum, Eliav,Khazanov, Netaly,Keshet-Levy, Nimrod Y.,Tamir, Tigist Y.,Ben Major,Lahav, Ron,Zilber, Sofia,Senderowitz, Hanoch,Bradfield, Paul,Imhof, Beat A.,Alpert, Evgenia,Gruzman, Arie
, (2019/10/02)
Leukocyte transendothelial migration is one of the most important step in launching an inflammatory immune response and chronic inflammation can lead to devastating diseases. Leukocyte migration inhibitors are considered as promising and potentially effective therapeutic agents to treat inflammatory and auto-immune disorders. In this study, based on previous trioxotetrahydropyrimidin based integrin inhibitors that suboptimally blocked leukocyte adhesion, twelve molecules with a modified scaffold were designed, synthesized, and tested in vitro for their capacity to block the transendothelial migration of immune cells. One of the molecules, namely, methyl 4-((2-(tert-butyl)-6-((2,4,6-trioxotetrahydropyrimidin-5(2H)-ylidene) methyl) phenoxy) methyl) benzoate, (compound 12), completely blocked leukocyte transendothelial migration, without any toxic effects on immune or endothelial cells (IC50 = 2.4 μM). In vivo, compound 12 exhibited significant therapeutic effects in inflammatory bowel disease (IBD)/Crohn's disease, multiple sclerosis, fatty liver disease, and rheumatoid arthritis models. A detailed acute and chronic toxicity profile of the lead compound in vivo did not reveal any toxic effects. Such a type of molecule might therefore provide a unique starting point for designing a novel class of leukocyte transmigration blocking agents with broad therapeutic applications in inflammatory and auto-immune pathologies.
Synthesis and structure–activity relationship study of novel quinazolinone-based inhibitors of MurA
Hrast, Martina,Ro?man, Kaja,Juki?, Marko,Patin, Delphine,Gobec, Stanislav,Sova, Matej
supporting information, p. 3529 - 3533 (2017/07/07)
MurA is an intracellular bacterial enzyme that is essential for peptidoglycan biosynthesis, and is therefore an important target for antibacterial drug discovery. We report the synthesis, in silico studies and extensive structure–activity relationships of a series of quinazolinone-based inhibitors of MurA from Escherichia coli. 3-Benzyloxyphenylquinazolinones showed promising inhibitory potencies against MurA, in the low micromolar range, with an IC50 of 8?μM for the most potent derivative (58). Furthermore, furan-substituted quinazolinones (38, 46) showed promising antibacterial activities, with MICs from 1?μg/mL to 8?μg/mL, concomitant with their MurA inhibitory potencies. These data represent an important step towards the development of novel antimicrobial agents to combat increasing bacterial resistance.
PHENYLETHYLPYRIDINE DERIVATIVES AS PDE4-INHIBITORS
-
Page/Page column 68; 69, (2014/06/24)
The invention relates to novel compounds which are inhibitors of the phosphodiesterase 4 (PDE4) enzyme and muscarinic M3 receptor antagonists, methods of preparing such compounds, compositions containing them and therapeutic use thereof.
New 5-benzylidenethiazolidin-4-one inhibitors of bacterial MurD ligase: Design, synthesis, crystal structures, and biological evaluation
Zidar, Nace,Toma?i?, Tihomir,?ink, Roman,Kova?, Andreja,Patin, Delphine,Blanot, Didier,Contreras-Martel, Carlos,Dessen, Andréa,Premru, Manica Müller,Zega, Anamarija,Gobec, Stanislav,Ma?i?, Lucija Peterlin,Kikelj, Danijel
supporting information; experimental part, p. 5512 - 5523 (2011/12/15)
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 μM. Inhibitor 37, with an IC50 of 34 μM, displays a weak antibacterial activity against S. aureus ATCC 29213 and E. faecalis ATCC 29212 with minimal inhibitory concentrations of 128 μg/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.