Synthesis of spiro-pyrazole-3,3′-thiopyrano[2,3-<i>b</i>]pyridines and azolo[<i>a</i>]pyrido[2′,3′:5,6]thiopyrano[3,4-<i>d</i>]pyrimidines as new ring systems with antifungal and antibacterial activities
作者:Kamal M. Dawood
DOI:10.1002/jhet.5570420207
日期:2005.3
N-dimethylamino)-methylene derivatives. The latter products afforded spiro-pyrazolo-3,3′-thiopyrano[2,3-b]pyridines and new tetra- and penta-heterocyclic ring systems when treated with nitrilimines and aminoazoles, respectively. A number of the products showed high antifungal and antibacterial activities.
2,3-二氢-4-氧代-硫代吡喃并[2,3- b ]吡啶与醛和与DMF-DMA的反应提供了3-亚苄基和3-(N,N-二甲基氨基)-亚甲基衍生物。当分别用腈亚胺和氨基唑处理时,后一产物提供螺-吡唑并3,3′-硫代吡喃并[2,3- b ]吡啶和新的四和五杂环环系统。许多产品显示出很高的抗真菌和抗菌活性。