W is a covalent bond or O;

X is a covalent bond or a group chosen from —C═O—NR_a—, NR_a—C═O, —(CH₂)_n—, —CH═CH—, —C≡C—, —NR_a—, S, O, —SO₂—, —SO, —CO or —COO, wherein R_a is H or (C₁-C₄)alkyl which optionally forms a ring with R1, and wherein n is an integer from 0 to 12;

R1 is H, alkyl, cycloalkyl, aryl or heteroaryl; said alkyl, cycloalkyl, aryl or heteroaryl is optionally substituted;

R and R2 may be identical or different and are independently of each other selected from H, alkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, hydroxyl, alkoxy and aryloxy radicals, all of which except H are optionally substituted;

Y is a covalent bond or a radical chosen from: —C═O—NR_a—, —C═O—O—, —C═O—, —(CH₂)_n— or —SO₂—, wherein R_a is H or (C₁-C₄)alkyl which optionally forms a ring with R3 and n is as defined above;

R3 is selected from the group consisting of H, alkyl, cycloalkyl, aryl, and heteroaryl; all of which except H are optionally substituted;

R4, R6 and R7, which may be identical or different, are independently chosen from H, halogen, (C₁-C₄)alkyl, (C₁-C₄)alkoxy, cyano, —N(R_b)R_c, —C═O—N(R_b)R_c and —N(R_b)—CO—R_c, wherein R_b and R_c are independently chosen from H, (C₁-C₄)alkyl and (C₃-C₆)cycloalkyl; or an enantiomer, a stereoisomer, a rotomer or a tautomer thereof, or a mixture in any combination thereof, a solvate thereof or a pharmaceutically acceptable salt thereof;

with the proviso that

when X=—SO₂— or —SO—, R1 is not H;

when Y is —C═O—O—, or —SO₂—, R3 is not H; and

with the exception of the products below