title: A procedure for preparing 3H-labeled tertiary amines. Synthesis of (3H)-6,14-endo-etheno-6,7,8,14-tetrahydrooripavine derivatives.
mesh_terms: D000588:Amines / Q000138:chemical synthesis*; D000700:Analgesics / Q000138:chemical synthesis*; D007553:Isotope Labeling; D009682:Magnetic Resonance Spectroscopy; D008722:Methods; D009019:Morphinans / Q000138:chemical synthesis*; D000439:Pentanols / Q000138:chemical synthesis; D014316:Tritium
chemical_list: D000588:Amines; D000700:Analgesics; D009019:Morphinans; D000439:Pentanols; D014316:Tritium