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Bioorg Med Chem Lett. 2009 May 1;19(9):2519-23. doi: 10.1016/j.bmcl.2009.03.031. Epub 2009 Mar 14.

The discovery of tropane derivatives as nociceptin receptor ligands for the management of cough and anxiety.

Author information

1
Department of Chemical Research, CV & CNS, Schering-Plough Research Institute, 2015 Galloping Hill Road, Kenilworth, NJ 07033, USA.

Abstract

The discovery of 1 as a high-affinity ligand for the nociceptin receptor has led to the synthesis of a series of tropane (8-methyl-8-azabicyclo[3.2.1]octane) derivatives as optimized ligands. These compounds exhibit high affinity for the nociceptin receptor, moderate to excellent selectivity over the opioid mu receptor, and behave as full agonists. In this Letter, we present the synthesis and highlight the structure-activity relationship of tropane derivatives culminating in the identification of 24 and 32 as potent and orally active antitussive and anxiolytic agents. The in vitro and in vivo activities, pharmacokinetic profile, and the hPXR activity, which predicts the potential 3A4 induction in human, are disclosed.

PMID:
19339177
DOI:
10.1016/j.bmcl.2009.03.031
[Indexed for MEDLINE]

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