New compounds. Some 3,4,5-trimethoxyphenyl analogs of analgesics.
D000700:Analgesics / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D007259:Infrared Rays; D007659:Ketones / Q000138:chemical synthesis; D009682:Magnetic Resonance Spectroscopy; D008614:Meperidine / Q000138:chemical synthesis*; D010880:Piperidines / Q000138:chemical synthesis*; D013053:Spectrophotometry
D000700:Analgesics; D007659:Ketones; D010880:Piperidines; D008614:Meperidine