A compound of formula (I) ** Formula ** formula (I) or a pharmaceutically acceptable salt thereof； where it is 0, 1, 2, 3 or 4； 1Y and Y2 are independently N or CR8 as long as one of 1Y and Y2 is N and the other is CR8； X is a linking group that is selected from -CR4>； = CR5 -, -CR4>； = CR5CR6R7-, -CR6R7CR5>； = CR4-, -C≡C-, -C≡CCR6R7-, -CR6R7C≡C-, -NR4CR6R7-, -OCR6R7-, -SCR6R7-, -S (O ) CR6R7-, -S (O) 2CR6R7-, -C (O) NR4CR6R7-, -NR4C (O) CR6R7-, -NR4C (O) NR5CR6R7-, -NR4S (O) 2CR6R7-, -S (O) 2NR4CR6R7 -, -C (O) NR4-, -NR4C (O) -, -NR4C (O) NR5-, -S (O) 2NR4- and -NR4S (O) 2-； R1 is a group selected from hydrogen C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, carbocyclyl, C 1-6 carbocyclyl, heterocyclyl and C 1-6 heterocyclyl, and said group is optionally substituted by one or more substituent groups that are selected from halo, cyano, nitro, R 9, -OR9 , -SR9, -SOR9, -SO2R9, -COR9, -CO2R9, -CONR9R10, -NR9R10, -NR9COR10, -NR9CO2R10, -NR9CONR10R15, -NR9COCONR10R15 and -NR9SO2R10； N are always selected from A1 or A2 where A1 is always selected between A1 and A2 that at least one of A1 or A2 is CH； every R3, when pres entity, independently selected from halo, cyano, nitro, -R13, -OR13, -SR13, -SOR13, -SO2R13, -COR13, -CO2R13, -CONR13R14, -NR13R14, -NR13COR14, -NR13CO2R14 and -NR13SO2R14； R4 and R5 are independently hydrogen or C1-6 alkyl；Un compuesto de fórmula (I) **Fórmula**fórmula (I)o una sal farmacéuticamente aceptable de los mismos； en dondem es 0, 1, 2, 3 o 4；1Y e Y2 son independientemente N o CR8 siempre que uno de 1Y e Y2 sea N y el otro sea CR8；X es un grupo enlazante que se selecciona de -CR4 >；= CR5-, -CR4 >；= CR5CR6R7-, -CR6R7CR5 >；= CR4-, -C&equiv；C-, -C&equiv；CCR6R7-, -CR6R7C&equiv；C-, -NR4CR6R7-, -OCR6R7-, -SCR6R7-, -S(O)CR6R7-, -S(O)2CR6R7-, -C(O)NR4CR6R7-, -NR4C(O)CR6R7-, -NR4C(O)NR5CR6R7-, -NR4S(O)2CR6R7-, -S(O)2NR4CR6R7-, -C(O)NR4-, -NR4C(O)-, -NR4C(O)NR5-, -S(O)2NR4- y -NR4S(O)2-；R1 es un grupo que se selecciona de hidrógeno, alquiloC1-6, alq
