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Medicinal Chemistry


ISSN (Print): 1573-4064
ISSN (Online): 1875-6638

Synthesis and Opioid Activity of Novel 6-ketolevorphanol Derivatives

Author(s): Zsuzsanna Gyulai, Antal Udvardy, Attila Cs. Bényei, Jakub Fichna, Katarzyna Gach, Martin Storr, Géza Tóth, Sándor Antus, Sándor Berényi, Anna Janecka and Attila Siposa

Volume 9, Issue 1, 2013

Page: [1 - 10] Pages: 10

DOI: 10.2174/1573406411309010001

Price: $65


Novel 6-ketolevorphanol analogs with diverse substitution patterns at ring C were synthesized and their binding affinities at the µ, δ and κ opioid receptors were investigated. The in vitro activity of the new analogs was then evaluated in the functional assay based on the electrically-stimulated contractions of the mouse ileum. It was shown that analogs with Δ7,8 bond had no significant potency at any of the opioid receptor types. In contrast, analogs with the saturated ring C were either potent agonist or antagonist depending on the absence or presence of the hydroxyl group in position 14.

Keywords: Analgesics, Opioid receptors, Binding Assay, Agonist, Antagonist

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