%0 Journal Article %T Regioselective synthesis of new 5- methyl- 5Hpyrimido [ 4′,5′:4,5] [1,3] thiazino [3,2-a] perimidines %A Firoozi, Neda %A Bakavoli, Mehdi %A Eshghi, Hossein %A Ramezanian, Navid %J Journal of Sulfur Chemistry %@ 1741-5993 %D 2017