title: Intramolecular cyclizations leading to N-bridgehead bicyclics. 5,5-Diphenylhydantoin derivatives.
mesh_terms: D000478:Alkylation; D001952:Bridged-Ring Compounds / Q000138:chemical synthesis*; D003500:Cyclization; D007093:Imidazoles / Q000138:chemical synthesis; D007259:Infrared Rays; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010080:Oxazoles / Q000138:chemical synthesis; D010672:Phenytoin / Q000138:chemical synthesis*; D013057:Spectrum Analysis
chemical_list: D001952:Bridged-Ring Compounds; D007093:Imidazoles; D010080:Oxazoles; D010672:Phenytoin