摘要 |
Disclosed are compounds of formula (I): or stereoisomers or pharmaceutically acceptable salts thereof, wherein the groups Ar<SUP>1</SUP>, Ar<SUP>2</SUP>, A, R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3</SUP>, E<SUP>1</SUP>, E<SUP>2</SUP>, X and n are as defined in the description and claims, which are effective modulators of chemokine activity.
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