نتایج جستجو برای: 2 oxo n

تعداد نتایج: 3136692  

Ameneh Malekzadeh Fatemeh Abiar Dil Khodabakhsh Niknam Marzieh Makvandi Mojtaba Baghernejad

Silica-bonded n-propyltriethylene-tetramine (SBNPTT) was found as an efficient solid base for the synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes. Chromene derivatives were obtained via the three-component condensation reaction of aromatic aldehydes, malononitrile, and dimedone at 80 oC under solvent-free conditions. The heterogeneous solid base showed much the same efficiency when u...

Journal: :Acta Crystallographica Section E Crystallographic Communications 2015

Journal: :Dalton transactions 2005
Michael M Bishop Leonard F Lindoy Andrew Parkin Peter Turner

Pseudo-macrocyclic complexes of copper(II), and in one instance nickel(II), incorporating the bidentate ligands methyl N-(4-oxo-5,5-diphenyl-4,5-dihydro-1H-imidazol-2-yl)imidocarbamate and N,N-dimethyl-N'-(4-oxo-5,5-diphenyl-4,5-dihydro-1H-imidazol-2-yl)guanidine are reported and their X-ray structures compared with those previously reported for related complexes of two N-(4-oxo- 5,5-diphenyl-4...

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

Journal: :Acta Crystallographica Section E Structure Reports Online 2014

Journal: :Acta Crystallographica Section E Structure Reports Online 2010

Journal: :FEBS letters 1988
H J Gross R Brossmer

We show that the 4-oxo analogue of N-acetyl-D-neuraminic acid strongly inhibits N-acetylneuraminate lyase (NeuAc aldolase, EC 4.1.3.3) from Clostridum perfringens (Ki = 0.025 mM) and Escherichia coli (Ki = 0.15 mM). In each case the inhibition was competitive. N-Acetyl-D-neuraminic acid; N-Acetylneuraminate lyase; N-Acetyl-D-neuraminic acid analog; 5-Acetamido-3,5-dideoxy-beta-D-manno-non-2,4-d...

Journal: :Journal of the Korean Chemical Society 2010

Journal: :Zeitschrift für Kristallographie - New Crystal Structures 2008

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