A compound represented by the following Chemical formula 1: or its pharmaceutically acceptable salt, in the Chemical formula 1, X is nitrogen, and R 1 or R 2 is each independently any one selected from the group consisting of hydrogen, hydroxy, halogen, cyano, amino, nitro, -NR 5 R 6, -N(SO 2)R 7, -CONR 5 R 6, -ORs, -SR 5, -SO 2 R 5, - SO 2 NR 5 R 6, -CR 5 R 6, -CR 5 NR 6 R 7, -P (OR 5)R 6, -P R 5 R 6, -OP (OR 5)R 6, -OP R 5 R 6, -CF 3, - NR 5 SO 2 NR 5 R 6, -CONR 5 COR 6, -NR 5 C(=N-CN)NR 5 R 6, -C(=N-CN)NR 5 R 6, -NR 5 C(=N-CN)R 6, - NR 5 C(=C-NO 2)NR 5 R 6, -SO 2 NR 5 COR 6, -CO 2 R 5, -C(C=N-OR 5)R 6, -CR 5 =CR 5 R 6, -CCR 5, - S(C=O)(C=N-R 5)R 6, -SF 5, -OCF 3, -NHCOR 5, unsubstituted or substituted C 1 -C 10 linear or branched alkyl, unsubstituted or substituted C 1 -C 10 linear or branched alkenyl, unsubstituted or substituted C 1 -C 10 linear or branched alkynyl, unsubstituted or substituted C 1 -C 10 linear or branched alkoxy, unsubstituted or substituted C 3 -C 10 cycloalkyl, unsubstituted or substituted C 3 -C 10 heterocycloalkyl comprising one or more heteroatoms selected from the group consisting of N, O and S, unsubstituted or substituted C 3 -C 10 cycloalkenyl, unsubstituted or substituted C 3 -C 10 heterocycloalkenyl comprising one or more heteroatoms selected from the group consisting of N, O and S, unsubstituted or substituted C 6 -C 14 aryl, unsubstituted or substituted C 6 -C 24 arylalkyl, unsubstituted or substituted C 6 -C 14 heteroaryl comprising one or more heteroatoms selected from the group consisting of N, O and S, and R 3 is any one selected from the group consisting of hydrogen, deuterium or unsubstituted or substituted C 1 -C 10 linear or branched alkyl, and R 4 is any one selected from the group consisting of hydrogen, -(CH 2) n OCOR 8 or unsubstituted or substituted C 1 -C 10 linear or branched alkyl, and R 5 to R 8 are each independently any one selected from the group consisting of hydrogen, unsubstituted or substituted amino, unsubstituted or substituted C 1 -C 10 linear or branched alkyl, unsubstituted or substituted C 1 -C 10 linear or branched alkenyl, unsubstituted or substituted C 1 -C 10 linear or branched alkynyl unsubstituted or substituted C 3 -C 10 cycloalkyl, unsubstituted or substituted C 3 -C 10 heterocycloalkyl comprising one or more heteroatoms selected from the group consisting of N, O and S, unsubstituted or substituted C 6 -C 14 aryl or unsubstituted or substituted C 6 -C 14 heteroaryl comprising one or more heteroatoms selected from the group consisting of N, O and S, and n is an integer of 1 to 5. in the Chemical formula 1, X is nitrogen, and R 1 or R 2 is each independently any one selected from the group consisting of hydrogen, hydroxy, halogen, cyano, amino, nitro, -NR 5 R 6, -N(SO 2)R 7, -CONR 5 R 6, -ORs, -SR 5, -SO 2 R 5, - SO 2 NR 5 R 6, -CR 5 R 6, -CR 5 NR 6 R 7, -P (OR 5)R 6, -P R 5 R 6, -OP (OR 5)R 6, -OP R 5 R 6, -CF 3, - NR 5 SO 2 NR 5 R 6, -CONR 5 COR 6, -NR 5 C(=N-CN)NR 5 R 6, -C(=N-CN)NR 5 R 6, -NR 5 C(=N-CN)R 6, - NR 5 C(=C-NO 2)NR 5 R 6, -SO 2 NR 5 COR 6, -CO 2 R 5, -C(C=N-OR 5)R 6, -CR 5 =CR 5 R 6, -CCR 5, - S(C=O)(C=N-R 5)R 6, -SF 5, -OCF 3, -NHCOR 5, unsubstituted or substituted C 1 -C 10 linear or branched alkyl, unsubstituted or substituted C 1 -C 10 linear or branched alkenyl, unsubstituted or substituted C 1 -C 10 linear or branched alkynyl, unsubstituted or substituted C 1 -C 10 linear or branched alkoxy, unsubstituted or substituted C 3 -C 10 cycloalkyl, unsubstituted or substituted C 3 -C 10 heterocycloalkyl comprising one or more heteroatoms selected from the group consisting of N, O and S, unsubstituted or substituted C 3 -C 10 cycloalkenyl, unsubstituted or substituted C 3 -C 10 heterocycloalkenyl comprising one or more heteroatoms selected from the group consisting of N, O and S, unsubstituted or substituted C 6 -C 14 aryl, unsubstituted or substituted C 6 -C 24 arylalkyl, unsubstituted or substituted C 6 -C 14 heteroaryl comprising one or more heteroatoms selected from the group consisting of N, O and S, and R 3 is any one selected from the group consisting of hydrogen, deuterium or unsubstituted or substituted C 1 -C 10 linear or branched alkyl, and R 4 is any one selected from the group consisting of hydrogen, -(CH 2) n OCOR 8 or unsubstituted or substituted C 1 -C 10 linear or branched alkyl, and R 5 to R 8 are each independently any one selected from the group consisting of hydrogen, unsubstituted or substituted amino, unsubstituted or substituted C 1 -C 10 linear or branched alkyl, unsubstituted or substituted C 1 -C 10 linear or branched alkenyl, unsubstituted or substituted C 1 -C 10 linear or branched alkynyl unsubstituted or substituted C 3 -C 10 cycloalkyl, unsubstituted or substituted C 3 -C 10 heterocycloalkyl comprising one or more heteroatoms selected from the group consisting of N, O and S, unsubstituted or substituted C 6 -C 14 aryl or unsubstituted or substituted C 6 -C 14 heteroaryl comprising one or more heteroatoms selected from the group consisting of N, O and S, and n is an integer of 1 to 5.