Biphenyl Compounds/chemistry; Organophosphorus Compounds/chemical synthesis; Organophosphorus Compounds/pharmacology; Schiff Bases/chemistry; Spiro Compounds/chemical synthesis; Spiro Compounds/pharmacology; Animals; Anti-Bacterial Agents/chemical synthesis; Anti-Bacterial Agents/chemistry; Anti-Bacterial Agents/pharmacology; Anti-Bacterial Agents/toxicity; Anticonvulsants/chemical synthesis; Anticonvulsants/chemistry; Anticonvulsants/pharmacology; Anticonvulsants/toxicity; Behavior, Animal/drug effects; Dose-Response Relationship, Drug; Gram-Negative Bacteria/drug effects; Gram-Negative Bacteria/growth & development; Gram-Positive Bacteria/drug effects; Gram-Positive Bacteria/growth & development; Hypnotics and Sedatives/chemical synthesis; Hypnotics and Sedatives/chemistry; Hypnotics and Sedatives/pharmacology; Hypnotics and Sedatives/toxicity; Lethal Dose 50; Mice; Microbial Sensitivity Tests; Molecular Structure; Organophosphorus Compounds/chemistry; Organophosphorus Compounds/toxicity; Seizures/drug therapy; Spiro Compounds/chemistry; Spiro Compounds/toxicity; Structure-Activity Relationship