Compounds of formula (I):
wherein:
R
1
represents substituted or unsubstituted heteroaryl;
Y represents —(CR
na
R
nb
)
n
—;
R
na
and R
nb
are each independently hydrogen or C
1-6
alkyl; n is an integer from 0 to 5;
R
2
represents unsubstituted or substituted aryl or unsubstituted or substituted heteroaryl;
R
3
and R
4
each independently represent hydrogen or C
1-6
alkyl;
R
7
represents hydrogen or C
1-6
alkyl;
R
8
represents hydrogen or C
1-6
alkyl; and salts and solvates thereof; are CCR3 antagonists and are thus indicated to be useful in therapy.