title: Some pyrrolidine analogues of diphenatil and related substances.
mesh_terms: D001559:Benzhydryl Compounds / Q000138:chemical synthesis; D011759:Pyrrolidines / Q000138:chemical synthesis*; D000644:Quaternary Ammonium Compounds / Q000138:chemical synthesis
chemical_list: D001559:Benzhydryl Compounds; D011759:Pyrrolidines; D000644:Quaternary Ammonium Compounds