title: Synthesis of some spin-labeled analogs of drug molecules.
mesh_terms: D001463:Barbiturates / Q000138:chemical synthesis*; D002794:Choline / Q000138:chemical synthesis*; D003497:Cyclic N-Oxides / Q000138:chemical synthesis*; D004578:Electron Spin Resonance Spectroscopy; D004952:Esters / Q000138:chemical synthesis; D005609:Free Radicals / Q000138:chemical synthesis; D013449:Sulfonamides / Q000138:chemical synthesis*
chemical_list: D001463:Barbiturates; D003497:Cyclic N-Oxides; D004952:Esters; D005609:Free Radicals; D013449:Sulfonamides; D002794:Choline