Abstract:
The present invention relates to a novel compound, a pharmaceutically acceptable salt or an optical isomer thereof, a method for preparing the same, and a pharmaceutical composition for preventing or treating viral diseases containing the same as an active ingredient. According to the present invention, the novel compound not only has low cytotoxicity but also has excellent antiviral activity against picornavirus such as coxsackievirus, enterovirus, echovirus, poliovirus and rhinovirus, thereby being effectively used as a pharmaceutical composition for preventing or treating viral diseases, such as infantile paralysis, acute hemorrhagic conjunctivitis, viral meningitis, hand-foot-and-mouth diseas, vesicular disease, hepatitis A, myitis, myocarditis, pancreatitis, diabetes, epidemic myalgia, encephalitis, cold, herpangina, foot-and-mouth disease, asthma, chronic obstructive pulmonary disease, pneumonia, sinus infection, or otitis media.