A Convenient One Pot Synthesis of 3-Cyano-9-methyl-2-methylthio-4-oxo- 4H- pyrimido[2,1-b] pyrimido [4,5-b] Quinoline and its Reactions with Selected Nucleophiles
作者:Sambhaji Vartale、Vijay Bhosale、Sandeep Khansole、Ramdas Katapalle
DOI:10.2174/157017809789869537
日期:2009.10.1
3-Amino-8-methyl pyrimido [4,5-b] quinoline (1) in N,N-dimethyl formamide (DMF) and anhydrous potassium carbonate reacted with ethyl-2-cyano-3,3-bismethyl thioacrylate 2 to afford novel heterocyclic compound 3- cyano-9-methyl-2-methylthio-4-oxo-4H-pyrimido [4,5-b] quinoline 3. The latter were further reacted with selected N-, Oand C- nucleophiles such as arylamines, substituted phenols, heterylamines and compounds with an active methylene group.
3-氨基-8-甲基嘧啶并[4,5-b]喹啉(1)在 N,N-二甲基甲酰胺(DMF)和无水碳酸钾中与硫代丙烯酸乙酯-2-氰基-3,3-二氨甲基酯 2 反应,得到新型杂环化合物 3-氰基-9-甲基-2-甲硫基-4-氧代-4H-嘧啶并[4,5-b]喹啉 3。后者进一步与选定的 N-、O-和 C-亲核物反应,如芳基胺、取代酚、杂胺和带有活性亚甲基的化合物。