Condensation of substituted 2-aminopyridine with β-ketocarboxylic esters: 4<i>H</i>-pyrido[1,2-<i>a</i>]pyrimidin-4-ones and pyridin-2-ones
作者:Pier Luigi Ferrarini、Claudio Mori、Clementina Manera、Filippo Mori、Vincenzo Calderone、Enrica Martinotti
DOI:10.1002/jhet.5570360502
日期:1999.9
We report the condensation of substituted 2-aminopyridines 5 with β-ketocarboxylic esters in polyphosphoric acid. In this reaction were obtained together with the target compounds, 4H-pyrido[1,2-a]pyrirnidin-4-ones 6 also the pyridin-2-ones 7. All the compounds 7 were tested for their calcium-antagonistic activity but failed to evoke any vasorelaxant response.
我们报道了在多磷酸中β-酮羧酸酯与2-氨基吡啶5的缩合反应。在该反应中,与目标化合物一起获得了4 H-吡啶并[1,2- a ]嘧啶-4-酮6和吡啶-2-酮7。测试所有化合物7的钙拮抗活性,但未能引起任何血管舒张反应。
A Novel Class of Highly Potent and Selective A<sub>1</sub> Adenosine Antagonists: Structure−Affinity Profile of a Series of 1,8-Naphthyridine Derivatives
作者:Pier Luigi Ferrarini、Claudio Mori、Clementina Manera、Adriano Martinelli、Filippo Mori、Giuseppe Saccomanni、Pier Luigi Barili、Laura Betti、Gino Giannaccini、Letizia Trincavelli、Antonio Lucacchini
DOI:10.1021/jm990321p
日期:2000.7.1
A series of 1,8-naphthyridine derivatives (12-36), bearing a phenyl group in position 2 and various substituents in positions 4 and 7, were synthesized in an attempt to obtain potent, selective antagonists for the A1adenosinereceptor subtype. The compounds were tested to evaluate their affinity for A1 compared with A2A and A3adenosinereceptor subtypes. In binding studies in bovine brain cortical