title: Structure-activity studies of dermorphin. Synthesis and some pharmacological data of dermorphin and its 1-substituted analogues.
abstract: Dermorphin and its analogues substituted at position 1 by N-acetyltyrosine, O-methyltyrosine, phenylalanine, D-phenylalanine, or alanine were obtained by solid-phase peptide synthesis. Their pharmacological effects were studied in vitro by the guinea pig ileum method and in vivo by the hot plate method, and the results were compared with those of morphine. The most pronounced activity was shown for dermorphin. A radioreceptor study showed a moderate affinity of dermorphin and its Tyr(Me)1 analogue for the opiate receptor sites from striatal homogenates.
mesh_terms: D000698:Analgesia; D000818:Animals; D001681:Biological Assay; D003342:Corpus Striatum / Q000187:drug effects; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D008722:Methods; D051379:Mice; D009294:Narcotics / Q000138:chemical synthesis* / Q000494:pharmacology; D009842:Oligopeptides / Q000138:chemical synthesis* / Q000494:pharmacology; D018847:Opioid Peptides; D011957:Receptors, Opioid / Q000187:drug effects / Q000378:metabolism; D013329:Structure-Activity Relationship
chemical_list: D009294:Narcotics; D009842:Oligopeptides; D018847:Opioid Peptides; D011957:Receptors, Opioid; C030058:dermorphin