title: Syntheses and analgesic activities of 1-[2-methyl-2-(N-propionyl-p- or m-substituted-phenylamino)ethyl]-4-phenethylpiperazines.
mesh_terms: D000700:Analgesics / Q000138:chemical synthesis*; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D010879:Piperazines / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity
chemical_list: D000700:Analgesics; D010879:Piperazines