Guanidino N-substituted and N,N-disubstituted derivatives of the kappa-opioid antagonist GNTI

J Med Chem. 2003 Dec 4;46(25):5505-11. doi: 10.1021/jm0309203.

Abstract

Derivatives of the highly selective kappa-opioid receptor antagonist GNTI (2a) have been prepared. Binding and functional studies conducted on cloned human opioid receptors expressed in Chinese hamster ovarian (CHO) cells suggested that adding a benzyl or a substituted benzyl group to the guanidino moiety led, in general, to a retention of high kappa-affinity and antagonist potency. Disubstitution of the guanidino moiety led to reduced kappa-selectivity.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • CHO Cells
  • Cricetinae
  • Guanidines / chemical synthesis*
  • Guanidines / chemistry
  • Guanidines / pharmacology
  • Humans
  • Morphinans / chemical synthesis*
  • Morphinans / chemistry
  • Morphinans / pharmacology
  • Receptors, Opioid, kappa / antagonists & inhibitors*
  • Structure-Activity Relationship

Substances

  • 17-cyclopropylmethyl-6,7-didehydro-4,5-epoxy-5'-guanidinyl-3,14-dihydroxyindolo(2',3'-6,7)morphinan
  • Guanidines
  • Morphinans
  • Receptors, Opioid, kappa