1,3-cycloaddition reactions of 2-oxo-2<i>H</i>-[1]benzopyran-4-carbonitrile<i>N</i>-oxide. Synthesis of several new 4-substituted coumarins
作者:Demetrios N. Nicolaides、Konstantina C. Fylaktakidou、Konstantinos E. Litinas、George K. Papageorgiou、Dimitra J. Hadjipavlou-Litina
DOI:10.1002/jhet.5570350321
日期:1998.5
1,3-Cycloaddition reactions of new 2-oxo-2H-[1]benzopyran-4-carbonitrile N-oxide 2 with dipolarophiles, o-aminophenols and o-phenylenediamine resulted in 4-heterocyclic substituted coumarin derivatives. These derivatives are screened for antiinflammatory activity in vitro through their antiproteolytic activity, the interaction with 1,1-diphenyl-2-picrylhydrazyl and the ability to affect superoxide
新的2-oxo-2 H- [1]苯并吡喃-4-腈N-氧化物2与双极性亲和剂,邻氨基苯酚和邻苯二胺的1,3-环加成反应生成4-杂环取代的香豆素衍生物。通过它们的抗蛋白水解活性,与1,1-二苯基-2-吡啶并肼基的相互作用以及影响超氧阴离子和抑制β-葡萄糖醛酸苷酶和大豆脂氧合酶的能力,筛选了这些衍生物的体外抗炎活性。