Preparation of 2-Aminopyridoimidazoles and 2-Aminobenzimidazoles via Phosphorus Oxychloride-Mediated Cyclization of Aminoureas
摘要:
The novel preparation of 2-aminopyridoimidazoles and 2-aminobenzimidazoles via the cyclization of (2-aminopyridin-3-yl)urea and (2-aminophenyl)urea substrates in the presence of phosphorus oxychloride is described. This methodology is demonstrated for a range of urea substrates with aminoimidazole products obtained in good yields and with excellent levels of purity.
Specific features of nucleophilic substitution in 1-chloro-3,4-dinitrobenzene
作者:N. V. Zotova、P. M. Kushakova、V. A. Kuznetsov、A. A. Rodin、A. V. Garabadzhiu
DOI:10.1007/s11178-005-0043-z
日期:2004.10
Effects of the solvent, temperature, and nucleophile nature on the selectivity of nucleophilic substitution in 1-chloro-3,4-dinitrobenzene were studied, and optimal conditions were found for the synthesis and isolation of particular products.
Regular Trends in Nucleophilic Substitutions in 2-Alkylamino-4-chloronitrobenzenes
作者:N. V. Zotova、P. M. Kushakova、V. A. Kuznetsov、A. A. Rodin、A. V. Garabadzhiu
DOI:10.1007/s11178-005-0146-6
日期:2005.2
The effect of substituents in position 2 on the reactivity of 2-alkylamino-4-chloronitrobenzenes in nucleophilic substitution by N-nucleophiles of various character was studied.
Preparation of 2-Aminopyridoimidazoles and 2-Aminobenzimidazoles via Phosphorus Oxychloride-Mediated Cyclization of Aminoureas
作者:Rebecca E. Deasy、Catherine N. Slattery、Anita R. Maguire、Douglas P. Kjell、Mai Khanh N. Hawk、Jung Min Joo、Rui Lin Gu、Humphrey Moynihan
DOI:10.1021/jo500360k
日期:2014.4.18
The novel preparation of 2-aminopyridoimidazoles and 2-aminobenzimidazoles via the cyclization of (2-aminopyridin-3-yl)urea and (2-aminophenyl)urea substrates in the presence of phosphorus oxychloride is described. This methodology is demonstrated for a range of urea substrates with aminoimidazole products obtained in good yields and with excellent levels of purity.
Design, Synthesis, and Evaluation of New 1<i>H</i>-Benzo[<i>d</i>]imidazole Based PqsR Inhibitors as Adjuvant Therapy for <i>Pseudomonas aeruginosa</i> Infections
作者:Fadi Soukarieh、Alaa Mashabi、William Richardson、Eduard Vico Oton、Manuel Romero、Jean-Frédéric Dubern、Shaun N. Robertson、Simone Lucanto、Zoe Markham-Lee、Tomás Sou、Irena Kukavica-Ibrulj、Roger C. Levesque、Christel A. S. Bergstrom、Nigel Halliday、Barrie Kellam、Jonas Emsley、Stephan Heeb、Paul Williams、Michael J. Stocks、Miguel Cámara
DOI:10.1021/acs.jmedchem.3c00973
日期:2024.1.25
one of three QS systems in P. aeruginosa, results in reduction of bacterial virulence gene expression and biofilm maturation. Herein, we report a hit to lead process to fine-tune the potency of our previously reported inhibitor 1 (IC50 3.2 μM in P. aeruginosa PAO1-L), which led to the discovery of 2-(4-(3-((6-chloro-1-isopropyl-1H-benzo[d]imidazol-2-yl)amino)-2-hydroxypropoxy)phenyl)acetonitrile (6f)