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Beilstein J. Org. Chem. 2016, 12, 1780–1787, doi:10.3762/bjoc.12.168
Graphical Abstract
Figure 1: Bioactive pyrrolo[2,1-f][1,2,4]triazin-4(3H)-ones [1-12].
Figure 2: General synthetic routes to pyrrolotriazinones [3-6,8,9,11].
Scheme 1: Synthesis of pyrrolotriazinones 9 and 12 [9,10,18].
Scheme 2: Synthesis of aminopyrrolocarbamate 10.
Figure 3: Probable mechanism for the synthesis of triazinone 12a.
Figure 4: The results of 13C NMR and IR studies.