%0 Conference Proceedings %T Synthesis of new heterocyclic system: [1,2,4]triazolo[3',4':6,1]pyridazino [4,3-e][1,3,4] thiadiazine %A Rahimizadeh, Mohammad %A Bakavoli, Mehdi %A Ranaei, Mahsa %A Shiri, Ali %J 17th Iranian Seminar of Organic Chemistry %D 2010