Novel phenylurea or phenylthiourea derivatives, pharmaceutically acceptable salts thereof, preparation method thereof and pharmaceutical composition for prevention or treatment of diseases induced by influenza virus containing the same as an active ingredient

摘要

present invention provides a formula to show that the novel phenyl or phenyl urea Im Leah Oyu derivatives, pharmaceutically acceptable salt thereof, to a pharmaceutical composition for preventing or treating diseases caused by the influenza virus containing them as an active ingredient, and methods for their preparation. Phenyl or phenyl novel urea derivatives of the formula Sy Oyu LEA (1) according to the present invention has excellent effect to inhibit proliferation of the disease caused by the influenza virus influenza virus, influenza, for example, sore throat, bronchitis, pneumonia or bird may be useful in the prevention or treatment of influenza. [Formula 1] (In the formula 1, R ¹ , R ² and X are as defined herein.)