A compound of formula (I) ** Formula ** in which W represents -CH2-CH2- or -CH>； = CH-； Y represents a bond or an alkanediyl (C1-C2) group； R1 represents an aryl or a heteroaryl group, whose groups are independently unsubstituted, mono-, di- or tri-substituted, in which the substituents are independently selected from the group consisting of halogen, (C1-C4) alkyl, alkoxy (C1-C4), fluoroalkyl (C1-C2) and fluoroalkoxy (C1-C2)； R2 represents - (C3-C6) cycloalkyl, which is unsubstituted or mono-substituted with R3R4N-CH2- or heterocyclylmethyl； or - (C2-C6) alkyl, which is - mono-substituted with -NR3R4, -C (O) NR5R6, (C1-C4) alkoxy, or (C1-C4) alkoxy which is mono-substituted with heterocyclyl, whose heterocyclyl is unsubstituted, or monosubstituted in a nitrogen atom with (C1-C4) alkyl and / or independently mono- or di-substituted in one or two of the carbon atoms with substituents independently selected from halogen and (C1-) alkyl C4)； or - mono- or di-substituted with hydroxy； or - (C1-C6) alkyl, which is mono-substituted - with (C3-C6) alkyl, whose cycloalkyl is mono-substituted with -NR3R4； - with heterocyclyl, whose heterocyclyl is unsubstituted, or mono-substituted on a nitrogen atom with (C1-C4) alkyl and / or independently mono- or di-substituted on one or two of the carbon atoms with substituents independently selected in tre halogen and (C1-C4) alkyl； or - with an aryl- or heteroaryl group, whose groups are independently unsubstituted, mono-, di- or tri-substituted, in which the substituents are independently sectioned between the group consisting of halogen, (C1-C4) alkyl, -CH2NH2 and -SO2NH2； or - fluoroalkyl (C3-C6), which is mono-substituted with heterocyclyl, whose heterocyclyl is unsubstituted or independently mono- or di-substituted on one or two of the carbon atoms with substituents independently selected from halogen and alkyl (C1 -C4)； or - heterocyclyl, which is unsubstituted, or mono-substituted on a nitrogen atom with alkyl (C or benzyl and
