title: Structural investigations of natural products by newer methods of NMR spectroscopy.
mesh_terms: D002247:Carbon Isotopes; D055598:Chemical Phenomena; D002621:Chemistry; D005583:Fourier Analysis; D006571:Heterocyclic Compounds / Q000032:analysis; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008674:Metals, Rare Earth / Q000032:analysis; D008832:Microchemistry; D008968:Molecular Conformation; D011803:Quinine
chemical_list: D002247:Carbon Isotopes; D006571:Heterocyclic Compounds; D008674:Metals, Rare Earth; D011803:Quinine