title: Studies on analgesic oligopeptides. II. Structure-activity relationship among thirty analogs of a cyclic dipeptide, cyclo(-Tyr-Arg-).
mesh_terms: D000700:Analgesics; D000818:Animals; D008297:Male; D051379:Mice; D009842:Oligopeptides / Q000494:pharmacology; D010456:Peptides, Cyclic / Q000494:pharmacology*; D013329:Structure-Activity Relationship
chemical_list: D000700:Analgesics; D009842:Oligopeptides; D010456:Peptides, Cyclic; C034111:cyclo(tyrosylarginyl)