title: [Studies on potent analgesics. I. Synthesis and analgesic activity of derivatives of fentanyl (author's transl)].
mesh_terms: D000700:Analgesics / Q000138:chemical synthesis* / Q000494:pharmacology; D000818:Animals; D005260:Female; D005283:Fentanyl / Q000031:analogs & derivatives* / Q000494:pharmacology; D008297:Male; D051379:Mice; D011957:Receptors, Opioid; D013329:Structure-Activity Relationship
chemical_list: D000700:Analgesics; D011957:Receptors, Opioid; D005283:Fentanyl