N-Demethylation of morphine and structurally related compounds with chloroformate esters.
D002247:Carbon Isotopes; D002713:Chlorine; D003640:Dealkylation; D005561:Formates; D007259:Infrared Rays; D007553:Isotope Labeling; D013058:Mass Spectrometry; D009019:Morphinans / Q000138:chemical synthesis*; D013057:Spectrum Analysis; D013329:Structure-Activity Relationship
D002247:Carbon Isotopes; D005561:Formates; D009019:Morphinans; D002713:Chlorine