%0 Journal Article %T Synthesis of 2-substituted-4-methyl-5,13- dihydropyrimido[4',5':5,6][1,4]thiazepino[2,3- b]quinoxaline as a new heterocyclic system %A Akbarzadeh, Marzieh %A Bakavoli, Mehdi %A Eshghi, Hossein %A Shiri, Ali %A Azizollahi, Hamid %A Joel T. Mague %J Phosphorus, Sulfur, and Silicon and the Related Elements %@ 1042-6507 %D 2018