Design and synthesis of 1,2-annulated adamantane piperidines with anti-influenza virus activity
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.
Synthesis of 1,2-annulated adamantane heterocycles: structural determination studies of a bioactive cyclic sulfite
作者:Grigoris Zoidis、Dimitra Benaki、Vassilios Myrianthopoulos、Lieve Naesens、Erik De Clercq、Emmanuel Mikros、Nicolas Kolocouris
DOI:10.1016/j.tetlet.2009.03.132
日期:2009.6
The novel heterocycle 3-oxatetracyclo[5.3.1.15,9.02,5]dodecane 4 is prepared by a simple and effective method, involving synthesis of the corresponding 2-hydroxy-1-adamantanomethanol followed by its intramolecular cyclization with thionyl chloride, along with 4-oxo-adamantane-3,5,4-dioxathiane 5 in yields depending on the reaction temperature. Dioxathiane 5 was markedly active against vesicular stomatitis