Synthesis and Characterization of some New 2-Methyl-3-N-Substituted Imino - 5, 6-Tetramethylene Thieno [2, 3-D]-Pyrimidin (3h)–4-ones for Anti-bacterial and Antifungal screening Journal title: Hygeia:journal for drugs and medicines Authors: S Ramamurthy, E Jayachandran Subject(s):