title: Peptidoaminobenzophenones, a novel class of ring-opened derivatives of 1,4-benzoidazepines.
abstract: A series of noval peptidoaminobenzophenones has been prepared via several routes and was evaluated for CNS activity. The structure--activity relationships in the series are discussed. In general, dipeptido-N-methylaminobenzophenones showed higher activities than the corresponding NH derivatives. Some compounds had very high activities in antipentylenetetrazole and antifighting tests in mice when orally administered. Very weak toxicity was also found in these compounds. Water solubility of the peptidoaminobenzophenones and their salts were tested. Possible in these compounds. Water solubility of the peptidoaminobenzophenones and their salts were tested. Possible in vivo conversion of peptidoaminobenzophenone by enzymatic cleavage of the terminal amino acid, followed by chemical cyclization to 1,4-benzodiazepine, is also discussed. Such novel open-ring derivatives of 1,4-benzodiazepine may serve as useful CNS agents.
mesh_terms: D000374:Aggression / Q000187:drug effects; D000818:Animals; D000927:Anticonvulsants / Q000138:chemical synthesis; D001569:Benzodiazepines / Q000378:metabolism; D001577:Benzophenones / Q000138:chemical synthesis* / Q000378:metabolism / Q000494:pharmacology; D002491:Central Nervous System Agents / Q000138:chemical synthesis*; D002492:Central Nervous System Depressants / Q000138:chemical synthesis*; D006801:Humans; D006993:Hypnotics and Sedatives / Q000138:chemical synthesis; D008297:Male; D051379:Mice; D009043:Motor Activity / Q000187:drug effects; D009125:Muscle Relaxants, Central / Q000138:chemical synthesis; D011955:Receptors, Drug / Q000378:metabolism; D013329:Structure-Activity Relationship
chemical_list: D000927:Anticonvulsants; D001577:Benzophenones; D002491:Central Nervous System Agents; D002492:Central Nervous System Depressants; D006993:Hypnotics and Sedatives; D009125:Muscle Relaxants, Central; D011955:Receptors, Drug; D001569:Benzodiazepines