摘要:
1-2 Annulated adamantane piperidines 4, 6, 16, 17, 19, 23 and 25 were synthesized and evaluated for anti-influenza A virus activity. The stereoelectronic requirements for optimal antiviral potency were investigated. Piperidine 23 proved to be the most active of the compounds tested against influenza A virus, being 3.5-fold more active than amantadine, equipotent to rimantadine and 15-fold more potent than ribavirin. It is noteworthy that piperidine 23 displayed one of the highest selectivity indexes (SI>732) among aminoadamantanes or other cage structure amines tested till now. (c) 2009 Elsevier Ltd. All rights reserved.