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

PURPOSE: A phenylurea or phenylthiourea derivative is provided to be used for treating and preventing diseases caused by influenza virus by having excellent effect restraining increase of influenza virus. CONSTITUTION: A phenylurea or phenylthiourea derivative or a pharmaceutically acceptable salt is in chemical formula 1. In chemical formula 1, R^ is C6-8 aryl, or C6-8 aryl C1-2 alkyl, R^2 is -(CH2)n-R^7, or -CH-R^6R^7, R^3 is C1-10 linear or branched alkyl, R^4 is C3-6 cycloalkyl, R^5 is C1-10 linear, or branched alkyl or -NH2, R^6 is C1-4 linear or branched alkyl, C6-8 aryl, or -CH2-OR^3, R^7 is C6-8 aryl, 5-8membered heteroaryl, 5-8membered heterocycloalkyl, 5-8 membered heterocycloalkyl, C6-8 aryl, -COOR^3, or -N(R^3)2, and X is oxygen, nitrogen, or sulfur.