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Bioorg Med Chem Lett. 2009 Apr 15;19(8):2289-94. doi: 10.1016/j.bmcl.2009.02.078. Epub 2009 Feb 25.

Syntheses of novel high affinity ligands for opioid receptors.

Author information

1
Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, USA. wentmp@rpi.edu

Abstract

A series of novel high affinity opioid receptor ligands have been made whereby the phenolic-OH group of nalbuphine, naltrexone methiodide, 6-desoxonaltrexone, hydromorphone and naltrindole was replaced by a carboxamido group and the furan ring was opened to the corresponding 4-OH derivatives. These furan ring 'open' derivatives display very high affinity for mu and kappa receptors and much less affinity for delta. The observation that these target compounds have much higher receptor affinity than the corresponding ring 'closed' carboxamides significantly strengthens our underlying pharmacophore hypothesis concerning the bioactive conformation of the carboxamide group.

PMID:
19282177
PMCID:
PMC2791460
DOI:
10.1016/j.bmcl.2009.02.078
[Indexed for MEDLINE]
Free PMC Article

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