New approaches to the synthesis of functionally substituted pyrido[3′,2′:4,5]thieno[3,2-b]pyridines and the structure of the products obtained

Article abstract of DOI:10.1007/BF01169365

Substituted pyrido[3′,2′:4,5]thieno[3,2-b]pyridines were obtained by the reaction of 3-amino-2-benzoylthieno[2,3-b]pyridines with malononitrile and the reaction of 3-cyanopyridine-2(1H)-thiones with 2-aryl-3-bromo-1,1-dicyanopropene. 2-Amino-4-(4-bromophe