%0 Conference Proceedings %T A general synthesis of new derivatives of pyrimido[4,5-e][1,2,4]triazolo[3,4-b] [1,3,4]thiadiazine %A Bakavoli, Mehdi %A Rahimizadeh, Mohammad %A Keshavarzi, Ali %A Shiri, Ali %J 17th Iranian Seminar of Organic Chemistry %D 2010