Furazan-3-carboxylic acid derivative of Formula 1: or a pharmaceutically acceptable salt thereof, wherein R 1 is hydrogen or a substituted or non-substituted group selected from C 1 -C 10 -alkyl, C 2 -C 10 -alkenyl, C 2 -C 10 -alkynyl, C 6 -C 18 -aryl, C 5 -C 18 -heteroaryl, and [Q 1] m1 -L 1; Q 1 is a substituted or non-substituted bridging group selected from C 1 -C 10 -alkylene, C 2 -C 10 -alkenylene, C 2 -C 10 -alkynylene, -CH 2 O-, -CH(CH 3)O-, -CH 2 CH 2 O-, -CH 2 CH 2 CH 2 O-, -CH(CH 3)CH 2 O-, and -CH 2 CH(CH 3)O-; m1 is an integer in the range of 1 to 10; L 1 is hydrogen or a substituted or non-substituted group selected from C 1 -C 10 -alkyl, C 2 -C 10 -alkenyl, C 2 -C 10 -alkynyl, C 6 -C 18 -aryl, C 5 -C 18 -heteroaryl, and -C CH 3, wherein in the above mentioned substituted groups one or more hydrogens are independently replaced by a substituent selected from deuterium, -F, -Cl, -Br, -I, and C 1 -C 6 -alkoxy; R 2 is hydrogen or a substituted or non-substituted group selected from C 1 -C 10 -alkyl, C 2 -C 10 -alkenyl, C 2 -C 10 -alkynyl, C 6 -C 18 -aryl, C 5 -C 18 -heteroaryl, and [Q 2] m2 -Ar 1 -[Q 3] m3 -[Ar 2] m4; Q 2 is a substituted or non-substituted bridging group selected from C 1 -C 10 -alkylene, C 2 -C 10 -alkenylene, C 2 -C 10 -alkynylene, C 6 -C 18 -arylene, C 5 -C 18 -heteroarylene, -(C n H 2n)O(C n H 2n)-, -(C n H 2n)NH(C n H 2n)-, -(C n H 2n)C O(C n H 2n)-, -(C n H 2n)C NH(C n H 2n)-, and -(C n H 2n)C NHC (C n H 2n)-; Q 3 is O or a substituted or non-substituted bridging group selected from C 1 -C 10 -alkylene, C 2 -C 10 -alkenylene, C 2 -C 10 -alkynylene, C 6 -C 18 -arylene, C 5 -C 18 -heteroarylene, -O(C n H 2n)-, -(C n H 2n)O(C n H 2n)-, -(C n H 2n)NH(C n H 2n)-, -(C n H 2n)C O(C n H 2n)-, -(C n H 2n)C NH(C n H 2n)-, and -(C n H 2n)C NHC (C n H 2n)-; Ar 1 and Ar 2 are independently from each other a C 6 -C 18 -aryl group or a substituted C 6 -C 18 -aryl group, wherein one or more hydrogens are independently replaced by a substituent selected from deuterium, -F, -Cl, -Br, -I, -C n H 2n+1, -C n F 2n+1, -O(C n H 2n+1), -O(C n F 2n+1), -OH, -NH 2, -NH(C n H 2n+1), -N(C n H 2n+1) 2, -NHS 2 C n H 2n-1, and -N(C n H 2n+1)S 2 C n H 2n-1; m2 and m3 are independently from each other an integer in the range of 0 to 5; m4 is 0 or 1; n is an integer in the range of 1 to 5; and R 3 is hydrogen or substituted or non-substituted C 1 -C 10 -alkyl, with the proviso that R1, R2 and R3 cannot simultaneously all be hydrogen; wherein the substituted alkyl, alkenyl, alkynyl, aryl and heteroaryl groups defined for R 1, R 2 and/or R 3 are each independently substituted by replacing one or more hydrogens by a substituent selected from deuterium, -F, -Cl, -Br, -I, C 1 -C 6 -alkyl and C 1 -C 6 -alkoxy. R 1 is hydrogen or a substituted or non-substituted group selected from C 1 -C 10 -alkyl, C 2 -C 10 -alkenyl, C 2 -C 10 -alkynyl, C 6 -C 18 -aryl, C 5 -C 18 -heteroaryl, and [Q 1] m1 -L 1; Q 1 is a substituted or non-substituted bridging group selected from C 1 -C 10 -alkylene, C 2 -C 10 -alkenylene, C 2 -C 10 -alkynylene, -CH 2 O-, -CH(CH 3)O-, -CH 2 CH 2 O-, -CH 2 CH 2 CH 2 O-, -CH(CH 3)CH 2 O-, and -CH 2 CH(CH 3)O-; m1 is an integer in the range of 1 to 10; L 1 is hydrogen or a substituted or non-substituted group selected from C 1 -C 10 -alkyl, C 2 -C 10 -alkenyl, C 2 -C 10 -alkynyl, C 6 -C 18 -aryl, C 5 -C 18 -heteroaryl, and -C CH 3, wherein in the above mentioned substituted groups one or more hydrogens are independently replaced by a substituent selected from deuterium, -F, -Cl, -Br, -I, and C 1 -C 6 -alkoxy; R 2 is hydrogen or a substituted or non-substituted group selected from C 1 -C 10 -alkyl, C 2 -C 10 -alkenyl, C 2 -C 10 -alkynyl, C 6 -C 18 -aryl, C 5 -C 18 -heteroaryl, and [Q 2] m2 -Ar 1 -[Q 3] m3 -[Ar 2] m4; Q 2 is a substituted or non-substituted bridging group selected from C 1 -C 10 -alkylene, C 2 -C 10 -alkenylene, C 2 -C 10 -alkynylene, C 6 -C 18 -arylene, C 5 -C 18 -heteroarylene, -(C n H 2n)O(C n H 2n)-, -(C n H 2n)NH(C n H 2n)-, -(C n H 2n)C O(C n H 2n)-, -(C n H 2n)C NH(C n H 2n)-, and -(C n H 2n)C NHC (C n H 2n)-; Q 3 is O or a substituted or non-substituted bridging group selected from C 1 -C 10 -alkylene, C 2 -C 10 -alkenylene, C 2 -C 10 -alkynylene, C 6 -C 18 -arylene, C 5 -C 18 -heteroarylene, -O(C n H 2n)-, -(C n H 2n)O(C n H 2n)-, -(C n H 2n)NH(C n H 2n)-, -(C n H 2n)C O(C n H 2n)-, -(C n H 2n)C NH(C n H 2n)-, and -(C n H 2n)C NHC (C n H 2n)-; Ar 1 and Ar 2 are independently from each other a C 6 -C 18 -aryl group or a substituted C 6 -C 18 -aryl group, wherein one or more hydrogens are independently replaced by a substituent selected from deuterium, -F, -Cl, -Br, -I, -C n H 2n+1, -C n F 2n+1, -O(C n H 2n+1), -O(C n F 2n+1), -OH, -NH 2, -NH(C n H 2n+1), -N(C n H 2n+1) 2, -NHS 2 C n H 2n-1, and -N(C n H 2n+1)S 2 C n H 2n-1; m2 and m3 are independently from each other an integer in the range of 0 to 5; m4 is 0 or 1; n is an integer in the range of 1 to 5; and R 3 is hydrogen or substituted or non-substituted C 1 -C 10 -alkyl, with the proviso that R1, R2 and R3 cannot simultaneously all be hydrogen; wherein the substituted alkyl, alkenyl, alkynyl, aryl and heteroaryl groups defined for R 1, R 2 and/or R 3 are each independently substituted by replacing one or more hydrogens by a substituent selected from deuterium, -F, -Cl, -Br, -I, C 1 -C 6 -alkyl and C 1 -C 6 -alkoxy.