title: [Studies on potent analgesics. II. Synthesis an analgesic activity of the derivatives of 3-methyl fentanyl (author's transl)].
mesh_terms: D000700:Analgesics / Q000138:chemical synthesis*; D000818:Animals; D005260:Female; D005283:Fentanyl / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology; D008297:Male; D051379:Mice; D013329:Structure-Activity Relationship
chemical_list: D000700:Analgesics; C030592:3-methylfentanyl; D005283:Fentanyl