79707-07-6Relevant academic research and scientific papers
Synthesis of 8-hydroxyimidazo[1,2-a]pyridine-2-carboxylic acid and its derivatives
Groselj, Uros,Bezensek, Jure,Meden, Anton,Svete, Jurij,Stanovnik, Branko,Oblak, Marko,Stefanic Anderluh, Petra,Urleb, Uros
experimental part, p. 1355 - 1370 (2009/04/11)
Two new imidazo[1,2-a]pyridines, 8-hydroxyimidazo[1,2-a]pyridine-2-carboxylic acid (4) and ethyl 8-hydroxyimidazo[1,2-a]pyridine-2-carboxylate (6) were prepared via cyclization of 2-aminopyfidin-3-ol (1) with bromopyruvic acid (2) and ethyl bromopyruvate (3), respectively. 8-Hydroxyimidazo[1,2-a]- pyridine-2-carboxylic acid (4) was successfully coupled with various amino acid derivatives via its active ester intermediate into the corresponding amides 22-27. O-protected ethyl 8-hydroxyimidazo[1,2-a]pyridine-2-carboxylate 11 was transformed into its hydrazide 13, acyl azide 14, and amide 15 derivatives.
