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Gold(I)-Catalyzed Intramolecular Bicyclization: Divergent Construction of Quinazolinone and Ampakine Analogues.

Chao LiuAdriano BolognaniLiangliang SongLuc Van MeerveltVsevolod A PeshkovErik V Van der Eycken
Published in: Organic letters (2022)
A gold(I)-catalyzed cascade intramolecular cyclization of Ugi adducts for the divergent construction of quinazolinone and ampakine analogues has been developed in a rapid, highly efficient and step-economical manner. This protocol shows high yields, excellent functional-group tolerance, broad substrate scope and excellent chemo- and regioselectivity. The practicality of this strategy is further demonstrated by a scale-up reaction. Diverse oligopeptides are also found to be well tolerated, affording polycyclic products decorated with a peptide chain.
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