Amino-alkyl amide derivatives as CCR3 receptor ligands

A compound of the general formula (I),

• wherein
• B stands for oxygen atom or —NR6 group, wherein R6 means hydrogen atom or straight or branched C1-4 alkyl group;
• Ar1 stands for phenyl group optionally substituted with one or more halogen atom;
• X and Y independently mean straight C1-4 alkylene group optionally substituted with one or more identical or non-identical straight or branched C1-4 alkyl group;
• Z stands for a straight C1-4 alkylene group optionally substituted with one or more identical or non-identical straight or branched C1-4 alkyl group;
• R1 and R2 independently mean hydrogen atom or straight or branched C1-4 alkyl group;
• Ar2 stands for phenyl group or benzyl group, optionally substituted with halogen atom;
• or
• benzene-fused to 5-membered heterocyclic ring;
• wherein the benzene ring group may optionally be further substituted with one or more identical or non-identical substituents selected from the group consisting of straight or branched C1-4 alkyl group, straight or branched C1-4 alkoxy group, hydroxyl group, amino group, amino group-substituted with one or two identical or non-identical straight or branched C1-4 alkyl group-, and halogen atom;
• or
• a salt or isomer thereof, salt of the isomer thereof.