Patent ID: 8178556

Claim:
A compound of the formula (I) wherein: X is a nitrogen atom and Y, Z and W are independently a carbon atom substituted by a substituent selected from: hydrogen, or T; A is: aryl or heteroaryl having one or more heteroatoms selected from N, O and S, each of these groups optionally substituted by one or more substituents selected from T; R1 is: alkyl, alkyloxyalkyl, cycloalkyl, cycloalkylalkyl, heterocycloalkyloxyalkyl, heterocycloalkylalkoxyalkyl, heterocycloalkylthioalkyl, heterocycloalkylalkylthioalkyl or R3R4N-alkyl, each of these groups optionally substituted by one or more substituents selected from T; T is: hydroxy, thio, halogen, cyano, trifluoromethoxy, trifluoromethyl, carboxy, carboxymethyl, carboxyethyl, alkyl, cycloalkyl, alkoxy, alkylamino, aryl, arylsulfonylalkyl, aryloxy, arylalkoxy, NR3R4, azido, nitro, guanidino, amidino, phosphono, carbamoyl, alkylsulfonyl, alkylsulfinyl, alkylthio, or SF 5 , or two T groups together form methylenedioxy; R3 and R4 are independently selected from: hydrogen, lower alkyl, cycloalkyl, heterocycloalkyl, aryl, or heteroaryl; or R3 and R4 together form a heterocycloalkyl group which can include one or more heteroatoms selected from N, O and S; as well as its racemic forms, tautomers, enantiomers, diastereomers and epimers, and mixtures thereof, and the pharmaceutically acceptable salts thereof.