[Et<sub>3</sub>NH][HSO<sub>4</sub>]-mediated functionalization of hippuric acid: an unprecedented approach to 4-arylidene-2-phenyl-5(4H)-oxazolones
作者:Mehtab Parveen、Faheem Ahmad、Ali Mohammed Malla、Shaista Azaz、Manuela Ramos Silva、P. S. Pereira Silva
DOI:10.1039/c5ra09290f
日期:——
Facile, sustainable and economical synthesis of Erlenmeyer azlactones.
简便、可持续和经济的合成埃伦迈尔酰胺。
From Silylphosphanes and Oxazolones to New Phosphorus Amido-Acids
作者:M. El Mkadmi、M. Lazraq、A. Kerbal、J. Escudie、C. Couret、H. Ranaivonjatovo
DOI:10.1080/10426509808545459
日期:1998.2.1
Silylphosphanes 3 and 4 gave 1,4-additions with the O=C-C=C moiety of oxazolones 1a-e and 2a-f to afford the adducts 5–8. Oxidation or sulfuration of 5–8 followed by hydrolysis led to oxyphosphorus (or thiophosphorus) amido-acids 9–11 and 15, 19, 20 respectively. A great difference was observed in the behaviour of thiophosphane oxides 16 (R = Me) and 17(R = Ph) toward hydrolysis: 16 led directly to
Hepatitis C (HCV) infection is a cause of chronic liver disease such as cirrhosis, carcinoma, or liver failure, and the current therapy is effective in only 50% of patients. Serine proteases, which are present in HCV, are the most studied class of proteolytic enzymes, and are a primary target in the drug development field. In this paper, we describe the synthesis and biological studies of a novel class of peptide mimetic compounds as potential HCV serine protease inhibitors.
An Efficient and Green Synthesis of Benzylidene-2-N-(carbothioamido)-6-oxo-1,2,5,6- tetrahydro-1-NH-1,2,4-triazine Derivatives and their Antibacterial Activity Evaluation
作者:V. Anitha Rani、Y. Bharathi Kumari
DOI:10.14233/ajchem.2014.16333
日期:——
An efficient and green synthesis of (Z)-3-allkyl-5(benzylidene/substituted benzylidene)-2N- (carbothioamido)-6-oxo-1,2,5,6-tetrahydro-1-NH-1,2,4-triazine derivatives have been developed in good yields and tested for their antibacterial activities against Escherichia coli, Providencia aeruginosa, Pseudomonas azotogensis and Baccilus subtillis. Some of the synthesized compounds possess good activity against Escherichia coli and Baccilus subtillis compared to standard drug streptomycin.
Synthesis and biological testing of (5Z)-2-aryl-5-arylmethylidene-3,5-dihydro-4H-imidazol-4-ones as antimitotic agents
作者:Anastasia A. Beloglazkina、Birgit Wobith、Elena S. Barskaia、Nikolay A. Zefirov、Alexander G. Majouga、Elena K. Beloglazkina、Nikolay V. Zyk、Sergei A. Kuznetsov、Olga N. Zefirova
DOI:10.1007/s00044-016-1566-2
日期:2016.6
5-arylmethylidene fragment than on the 2-aryl ring in general. The cytotoxicities of the synthesized compounds were lower than those of the previously reported isomeric 2-aryl-4-benzoyl-imidazoles, and the basic structure–activityrelationships in the isomeric pairs were different. Synthesized (5Z)-5-[(4-bromophenyl)methylidene]-2-(4-methylphenyl)-3,5-dihydro-4H-imidazol-4-one, which had the highest cytotoxicity