%0 Conference Proceedings %T Synthesis of new derivatives of pyrimido[5,4-e][1,2,4]triazolo[3,4-b][1,3,4]thiadiazine and stadise of their biological activities %A Asghari Shirghan, Tayebe %A Bakavoli, Mehdi %A Rahimizadeh, Mohammad %A Eshghi, Hossein %A Saberi, Satar %A , %J 20th Iranian Seminar of Organic Chemistry %D 2013