title: Opioid peptides. Structure-activity relationships in [beta-Ala4]dermorphin tetrapeptides. V.
abstract: We describe the synthesis and preliminary in vitro and in vivo pharmacological tests of six [beta-Ala4]tetrapeptides analogs of the opioid heptapeptide dermorphin H-Tyr-D-Ala-Phe-Gly-Tyr-Pro-Ser-NH2. The modification obtained by substituting beta-Ala4 for Gly4 provided further analogues with significant opioid activity.
mesh_terms: D000700:Analgesics; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007276:Injections, Intraventricular; D008297:Male; D051379:Mice; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D009842:Oligopeptides / Q000138:chemical synthesis* / Q000494:pharmacology; D018847:Opioid Peptides; D013329:Structure-Activity Relationship
chemical_list: D000700:Analgesics; D009842:Oligopeptides; D018847:Opioid Peptides; C030058:dermorphin