Synthesis and quantitative structure–activity relationship study of substituted imidazophosphor ester based tetrazolo[1,5-<i>b</i>]pyridazines as antinociceptive/anti-inflammatory agents
作者:Wafaa M Abdou、Neven A Ganoub、Eman Sabry
DOI:10.3762/bjoc.9.199
日期:——
A high-yielding general synthesis of imidazophosphor ester based tetrazolo[1,5-b]pyridazines is described. A conjugated reaction between 3,6-diazidopyridazine and different types of phosphonyl carbanion reagents followed by intramolecular cyclization afforded the target products, by using sodium ethanolate solution as a reaction medium. Among the products, five compounds, at a dose of 50 mg per kilogram