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Synthesis of Chromeno[3,4-b]piperazines by an Enol-Ugi/Reduction/Cyclization Sequence.

ABSTRACT: Keto piperazines and aminocoumarins are privileged building blocks for the construction of geometrically constrained peptides and therefore valuable structures in drug discovery. Combining these two heterocycles provides unique rigid polycyclic peptidomimetics with drug-like properties including many points of diversity that could be modulated to interact with different biological receptors. This work describes an efficient multicomponent approach to condensed chromenopiperazines based on the novel enol-Ugi reaction. Importantly, this strategy involves the first reported post-condensation transformation of an enol-Ugi adduct.

SUBMITTER: Bornadiego A

PROVIDER: S-EPMC7956738 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Synthesis of Chromeno[3,4-<i>b</i>]piperazines by an Enol-Ugi/Reduction/Cyclization Sequence.

Bornadiego Ana A Neo Ana G AG Marcos Carlos F CF

Molecules (Basel, Switzerland) 20210227 5

Keto piperazines and aminocoumarins are privileged building blocks for the construction of geometrically constrained peptides and therefore valuable structures in drug discovery. Combining these two heterocycles provides unique rigid polycyclic peptidomimetics with drug-like properties including many points of diversity that could be modulated to interact with different biological receptors. This work describes an efficient multicomponent approach to condensed chromenopiperazines based on the no ...[more]

PMID: 33673443

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