%0 Conference Proceedings %T Synthesis of new heterocyclicsystem of [1,2,4]triazolo[4 ,3 :1 ,6 ]pyrimido[4 ,5 :3,4]pyridazino[1,6- d][1,2,4]triazine %A Hazrathoseyni, Ayla %A Rahimizadeh, Mohammad %A Seyedi, Seyed Mohammad %A Eshghi, Hossein %A Shiri, Ali %J 16th Iranian Chemistry Congress %D 2013