Reactions with 3,6-diaminothieno[2,3-b]-pyridines: Synthesis and characterization of several new fused pyridine heterocycles
作者:Mohamed A. M. Gad-Elkareem、Mohamed A. A. Elneairy、Adel M. Taha
DOI:10.1002/hc.20313
日期:2007.5
6-Aminopyridine-2(1H)thiones 1 reacting with α-halo-compounds 2a–c afforded the alkylthiopyridine derivatives 3a–c which in turn cyclized to the corresponding thieno[2,3-b]pyridine derivatives 4a–c. Several thieno[2,3-b]pyridine derivatives 7, 16, 19, pyrido[3′,2′:4,5]thieno[3,2-d]pyrimidine derivatives 6a,b, 11a–c, 21 and pyrido[3′,2′:4,5]thieno[3,2-c]pyridazine derivatives 13, 17 were prepared starting
6-氨基吡啶-2(1H)硫酮1与α-卤代化合物2a-c反应得到烷基硫代吡啶衍生物3a-c,后者又环化为相应的噻吩并[2,3-b]吡啶衍生物4a-c。几种噻吩并[2,3-b]吡啶衍生物7, 16, 19,吡啶并[3',2':4,5]噻吩并[3,2-d]嘧啶衍生物6a,b, 11a–c, 21 和吡啶并[3',2':4,5]噻吩并[3,2-c]哒嗪衍生物13、17是从化合物4a-c开始制备的。© 2007 Wiley Periodicals, Inc. 杂原子化学 18:405–413, 2007; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20313