Abstract
A novel series of bis(sulfanediyl)bis(tetrahydropyrimido[4,5-b]quinoline-4,6-diones) which are linked to benzene, pyridine, or thieno[4,5-d]thiophene cores were prepared to via multicomponent reaction of bis(sulfanediyl))bis(6-aminopyrimidin-4(1H)-ones) with two equivalents of both dimedone and the appropriate aromatic aldehyde. The target molecules were alternatively prepared via the bis-alkylation reactions of the appropriate 5-aryl-2-thioxohexahydropyrimido[4,5-b]quinoline-4,6-dione with the corresponding dibromo compounds.