Metcalf Matthew D, Coop Andrew
Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, MD 21201, USA.
Bioorg Med Chem Lett. 2007 Nov 1;17(21):5916-7. doi: 10.1016/j.bmcl.2007.07.098. Epub 2007 Aug 23.
The presence of a 6,7-fused indole group in the indolomorphinans was considered to be responsible for the delta opioid selectivity for this class of ligands. Herein is shown that 5'-halogenated analogs of oxymorphindole are opioids with little selectivity for delta receptors over mu opioid receptors.