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A Review of the Synthetic Strategies toward Dihydropyrrolo[1,2-a]Pyrazinones

Pieterjan Winant, Tomas Horsten, Shaiani Gil de Melo, Flavio Emery, Wim Dehaen

Organics · pp. 118–141 · Published 4 Jun 2021

10.3390/org2020011

Abstract

Dihydropyrrolo[1,2-a]pyrazinone rings are a class of heterocycles present in a wide range of bioactive natural products and analogues thereof. As a direct result of their bioactivity, the synthesis of this privileged class of compounds has been extensively studied. This review provides an overview of these synthetic pathways. The literature is covered up until 2020 and is organized according to the specific strategies used to construct the scaffold: fusing a pyrazinone to an existing pyrrole, employing a pyrazinone-first strategy, an array of multicomponent reactions and some miscellaneous reactions.

Pyrrole Combinatorial chemistry Class (philosophy) Chemistry Scaffold Computer science Biochemical engineering Organic chemistry

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