List of Articles 5- bromo- 2 Open Access Article Abstract Page Full-Text 1 - Solvent Free Synthesis of tetra alkyl- phenyl-1H-pyrimido[4,5-e][1,3,4]Thiadiazine-3,7-diamines Mohammad Hosein Farjam Open Access Article Abstract Page Full-Text 2 - Synthesis of thiadiazine-3,7-diamine derivatives Nima Razzaghi – asl Mohammad Kazem Mohammadi