Coxsackievirus and related enteroviruses are important human pathogens that cause various diseases with clinical manifestations ranging from trivial flu-like syndromes to dangerous or even fatal diseases such as myocarditis, meningitis and encephalitis. Here, we report on our continuous SAR study focused on 9-(bicyclo[2.2.1]hept-2-yl)-9H-purines as anti-enteroviral inhibitors. The purine moiety was modified at positions 2, 6 and 8. Several analogues inhibited Coxsackievirus B3 as well as other enteroviruses at low-micromolar concentrations. The 6-chloropurine derivative was confirmed as the most active compound in this series.

Gilead Sciences and IOCB Research Centre Institute of Organic Chemistry and Biochemistry Academy of Sciences of the Czech Republic v v i Flemingovo nám 2 166 10 Prague 6 Czech Republic

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