title: A general method for the determination of precursor configuration in biosynthetic precursor-product relationships. Derivation of pipecolic acid from D-lysine, and of piperidine alkaloids from L-lysine.
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D002247:Carbon Isotopes; D002849:Chromatography, Gas; D007553:Isotope Labeling; D008239:Lysine; D008722:Methods; D008968:Molecular Conformation; D010875:Pipecolic Acids / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000032:analysis; D013237:Stereoisomerism; D013329:Structure-Activity Relationship; D014316:Tritium
chemical_list: D000470:Alkaloids; D002247:Carbon Isotopes; D010875:Pipecolic Acids; D014316:Tritium; D008239:Lysine