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Beilstein J. Org. Chem. 2020, 16, 663–669, doi:10.3762/bjoc.16.63
Graphical Abstract
Figure 1: Structures of natural tetramic acid derivatives with more clinical relevance.
Scheme 1: Synthetic strategy of compound 7a.
Scheme 2: Scope of the Ugi/Dieckmann cyclization reaction route to lead to pyrrolopyridinones 7a–l. aYield of...
Scheme 3: Postulated reaction mechanism.