Studies on annulated 1,4-benzothiazines and 1,5-benzothiazepines. IX. Imidazo [2,1-d][1,5] benzothiazepines: synthesis and in vitro benzodiazepine receptor affinity
                                
                                    
                                        作者:V Ambrogi、G Grandolini、L Perioli、L Giusti、A Lucacchini、C Martini                                    
                                    
                                        DOI:10.1016/0223-5234(96)88253-5
                                    
                                    
                                        日期:1995.1
                                    
                                    The synthesis of three series of 1- and 2-substituted imidazo[2,1-d][1,5]benzothiazepines is accomplished starting from 1,5-benzothiazepin-4-ones. All the synthesized compounds were evaluated for their affinity for the benzodiazepine receptor, testing their ability to displace [H-3]Flunitrazepam from bovine brain membrane protein. A few of the tested compounds showed good affinity, in particular compound 9a (K-i = 43.00 nM). The GABA-ratio of the active compounds suggests an antagonist or partial agonist activity. The data obtained allow us to draw some comments on the structure-activity relationships.