Triazolopyridine derivatives as a tyrosine kinase inhibitor

PURPOSE: A triazolopyridine derivative is provided to be used in prevention or treatment of a inflammation disease, autoimmune disease, proliferative disease or hyperproliferative diseases, immunologically mediated disease, cancer or tumor that are mediated by an abnormally activated T-lymphocyte, T-lymphocyte, or both of them. CONSTITUTION: A compound represented by Formula 1 and a pharmaceutically-acceptable salt thereof are provided. The compound represented by Formula 1 and a pharmaceutically-acceptable salt thereof are selected from N-(3-(2-(4-(4-methylpiperazine-1-yl)phenylamino)-[1,2,4]triazolo[1,5-a]pyridine-8-yloxy)phenyl)acrylamide; N-(3-(2-(3-fluoro-4-(1-methylpiperidine-4-ylamino)phenylamino)-[1,2,4]triazolo[1,5-a]pyridine-8-yloxy)phenyl)acrylamide; N-(3-(2-(4-((dimethylamino)methyl)phenylamino)-[1,2,4]triazolo[1,5-a]pyridine-8-yloxy)phenyl)acrylamide; N-(3-(2-(4-(4-methylpiperazine-1-carbonyl)phenylamino)-[1,2,4]triazolo[1,5-a]pyridine-8-yloxy)phenyl)acrylamide; and N-(3-(2-(4-(4-isopropylpiperazine-1-yl)phenylamino)-[1,2,4]triazolo[1,5-a]pyridine-8-yloxy)phenyl)acrylamide.