Synthesis of new tricyclic 5,6-dihydro-4<i>H</i>-benzo[<i>b</i>][1,2,4]triazolo[1,5-<i>d</i>][1,4]diazepine derivatives by [3<sup>+</sup> + 2]-cycloaddition/rearrangement reactions
Beilstein journal of organic chemistry