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Synthesis of spiro-2,6-dioxopiperazine and spiro-2,6-dioxopyrazine scaffolds using amino acids in a three-component reaction to generate potential Sigma-1 (?1) receptor selective ligands.


ABSTRACT: A library-friendly approach to generate new scaffolds is decisive for the development of molecular probes, drug like molecules and preclinical entities. Here, we present the design and synthesis of novel heterocycles with spiro-2,6-dioxopiperazine and spiro-2,6-pyrazine scaffolds through a three-component reaction using various amino acids, ketones, and isocyanides. Screening of select compounds over fifty CNS receptors including G-protein coupled receptors (GPCRs), ion channels, transporters, and enzymes through the NIMH psychoactive drug screening program indicated that a novel spiro-2,6-dioxopyrazine scaffold, UVM147, displays high binding affinity at sigma-1 (?1) receptor in the nanomolar range. In addition, molecular docking of UVM147 at the human ?1 receptor have shown that it resides in the same binding site that was occupied by the ligand 4-IBP used to obtain a crystal structure of the human sigma-1 (?1) receptor.

SUBMITTER: Uprety R 

PROVIDER: S-EPMC6361672 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Synthesis of spiro-2,6-dioxopiperazine and spiro-2,6-dioxopyrazine scaffolds using amino acids in a three-component reaction to generate potential Sigma-1 (σ<sub>1</sub>) receptor selective ligands.

Uprety Rajendra R   Váradi András A   Allaoa Abdullah A   Redel-Traub Gabriel N GN   Palmer Travis C TC   Feinberg Evan N EN   Ferris Alex C AC   Pande Vijay S VS   Pasternak Gavril W GW   Majumdar Susruta S  

European journal of medicinal chemistry 20181222


A library-friendly approach to generate new scaffolds is decisive for the development of molecular probes, drug like molecules and preclinical entities. Here, we present the design and synthesis of novel heterocycles with spiro-2,6-dioxopiperazine and spiro-2,6-pyrazine scaffolds through a three-component reaction using various amino acids, ketones, and isocyanides. Screening of select compounds over fifty CNS receptors including G-protein coupled receptors (GPCRs), ion channels, transporters, a  ...[more]

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