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Beilstein J. Org. Chem. 2021, 17, 977–982, doi:10.3762/bjoc.17.79
Graphical Abstract
Figure 1: Biologically relevant 2-oxydibenzofuran-containing structures 1–6.
Figure 2: Representative bioactive structures containing benzofuro-fused pyridine analogues 7–9.
Scheme 1: Strategy for metal-free access to benzofuropyridine 13.
Scheme 2: Electrophilic aromatic substitution of 6-hydroxybenzofuro[2,3-b]pyridine (13).
Scheme 3: Synthesis of isomeric oxazole-fused derivatives.
Scheme 4: Fused derivatives from 16.