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J Med Chem. 1997 May 23;40(11):1720-5.

7-Spiroindanyl derivatives of naltrexone and oxymorphone as selective ligands for delta opioid receptors.

Author information

1
Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota, Minneapolis 55455, USA.

Abstract

A series consisting of spiroindanyl (5-7), benzospiroindanyl (8-10), and spiroperinaphthyl (11) derivatives of naltrexone and oxymorphone were synthesized in order to investigate the role of an orthogonal-oriented "address" for delta opioid receptors. All of the ligands exhibited a preference for delta receptors in vitro. The 7-benzospiroindanyl derivative 8 (BSINTX) was the most selective delta opioid receptor antagonist in vitro. In mice BSINTX antagonized the delta 1-selective agonist, [D-Pen2,D-Pen5]enkephalin without significantly affecting the antinociceptive potency of delta 2, mu, and kappa agonists. The results of this study are consistent with an orthogonally-oriented address favoring delta 1 activity.

PMID:
9171881
DOI:
10.1021/jm9700880
[Indexed for MEDLINE]

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