Novel inhibitors of prolyl 4-hydroxylase. 3. Inhibition by the substrate analog N-oxaloglycine and its derivatives
摘要:
N-Oxaloglycine (3) is an alpha-ketoglutarate (1) analogue that is a competitive inhibitor of prolyl 4-hydroxylase (EC 1.14.11.2). A study of the structure-activity relationships of some other oxalo derivatives shows that substitution on the glycine moiety modulates activity stereoselectively and that if the omega-carboxylate is homologated or replaced by either acylsulfonamides or anilide, then activity is sharply reduced. This sensitivity to these changes is contrasted with the relative insensitivity of another putative alpha-ketoglutarate analogue, pyridine-2,5-dicarboxylic acid (2), and the implication is discussed that compounds of both series are unlikely to bind to prolyl hydroxylase in the same way even though both inhibit the enzyme competitively.
Synthesis of N-Arylisatins using NaY Heterogeneous Catalyst under Microwave Irradiations
作者:RAVINDER SINGH、RAMESH KUMAR
DOI:10.13005/ojc/280258
日期:2012.6.18
N-Arylisatins are synthesized in high yield in shorter reaction time by the reaction of 2-oxo2-(Arylamino)acetates and arynes usingNaYheterogeneouscatalystundermicrowaveirradiations.
Synthesis of N-Arylisatins Using Different Heterogeneous Catalyst Under Microwave Irradiations
作者:Ravinder Singh、Ramesh Kumar
DOI:10.14233/ajchem.2013.14146
日期:——
N-Arylisatins having both biological and medical properties are synthesized by the reaction of methyl-2-oxo-2-(arylamino)acetates and arynes using NaHCO3 in presence of different heterogeneous catalyst under microwave irradiations in high yield in shorter reaction time.