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2011 | OriginalPaper | Buchkapitel

Nonpeptidic Delta (δ) Opioid Agonists and Antagonists of the Diarylmethylpiperazine Class: What Have We Learned?

verfasst von : Silvia N. Calderon

Erschienen in: Chemistry of Opioids

Verlag: Springer Berlin Heidelberg

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Abstract

The discovery of the selective delta (δ) opioid agonists SNC 80 and BW373U86, which possess a diarylmethylpiperazine structure unique among opioids, represented a major advance in the field of δ-opioid ligands. Extensive research has recently been performed to uncover the structure–activity relationships (SAR) of this class of ligands, thereby providing valuable tools for the pharmacological characterization of the δ opioid receptor. This review focuses on the SAR of this unique series of ligands, and provides an overview of the various chemical routes that have been developed and optimized through the years to allow the syntheses of these ligands on a multigram scale. The search for selective δ opioid agonists and antagonists, as well as for those with mixed opioid agonist properties with potential therapeutic value, continues. Several questions regarding the interaction at the molecular level of diphenylmethylpiperazine derivatives and related analogs with opioid receptors and in particular with the δ opioid system still remain unanswered. Indeed, the development and pharmacological characterization of novel nonpeptidic δ opioid ligands remains an active area of research, as it may provide a better understanding of the role of this receptor in multiple disease states and disorders.

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Metadaten
Titel
Nonpeptidic Delta (δ) Opioid Agonists and Antagonists of the Diarylmethylpiperazine Class: What Have We Learned?
verfasst von
Silvia N. Calderon
Copyright-Jahr
2011
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/128_2010_83