H. Schmidhammer et al., SYNTHESIS AND BIOLOGICAL EVALUATION OF 14-ALKOXYMORPHINANS .12. A PHENETHYL ANALOG OF THE MU-SELECTIVE OPIOID RECEPTOR ANTAGONIST CYPRODIME, Bioorganic & medicinal chemistry letters, 5(17), 1995, pp. 1923-1926
The N-phenethyl analogue (compound 4) of the mu-selective opioid antag
onist cyprodime (1) has been prepared and evaluated in radioligand bin
ding, bioassays (guinea-pig ileum myenteric plexus and mouse vas defer
ens preparations) and the rat tail flick test. It was found to possess
remarkable affinity and high preference for mu opioid receptors and h
igh antinociceptive potency which is comparable to its N-methyl analog
ue 3.