A compound of general formula (I) ** Formula ** in which R1 is selected from: - a group - (C (R3) 2) m-aryl, the aryl group being optionally substituted with at least one halogen atom； - a group - (C (R3) 2) m-heteroaryl the heteroaryl group may be optionally substituted with at least one substituent selected from a halogen, C1-3 alkyl, C1-3 alkoxy, C1-3 haloalkoxy or C1-3 haloalkyl and the heteroaryl group may be optionally condensed with an additional ring system； - a group - (C (R3) 2) n-heterocycloalkyl, the heterocycloalkyl may be optionally substituted with at least one substituent selected from a halogen, C1-3 alkyl, C1-3 alkoxy, C1-3 haloalkoxy or C1-3 haloalkyl and containing at least one oxygen atom； R2 is selected from: - a phenyl group optionally substituted with at least one substituent selected from a halogen, C1-3 alkoxy, C1-3 haloalkoxy, C1-3 haloalkyl or a hydroxyl group； - a heteroaryl group optionally substituted with at least one substituent selected from a halogen, C1-3 alkyl, C1-3 alkoxy, C1-3 haloalkoxy, C1-3 haloalkyl or a hydroxyl group； - a heterocycloalkyl group and which is optionally substituted with at least one substituent selected from a halogen, C1-3 alkyl, C1-3 alkoxy, C1-3 haloalkoxy, C1-3 haloalkyl or a hydroxyl group； R3 is H or C1-3 alkyl； m is 1 to 3； and n is 0 to 3； with the proviso that when R1 is a group - (C (R3) 2) m-aryl, R2 is not a phenyl group； or a pharmaceutically acceptable salt or solvate thereof.Un compuesto de fórmula general (I)**Fórmula** en la que R1 se selecciona de: - un grupo -(C(R3)2)m-arilo pudiendo estar el grupo arilo opcionalmente sustituido con al menos un átomo de halógeno； - un grupo -(C(R3)2)m-heteroarilo pudiendo estar el grupo heteroarilo opcionalmente sustituido con al menos un sustituyente seleccionado de un halógeno, alquilo C1-3, alcoxi C1-3, haloalcoxi C1-3 o haloalquilo C1-3 y pudiendo estar el grupo heteroarilo opcionalmente condensado con un sistema de anillos adicional； - un grupo -(C(R
