| http://www.w3.org/ns/prov#value | - A method to treat a disease mediated by a chemokine receptor in a human or animal subject, comprising administering to a subject in need of such treatment a compound of the formula or a pharmaceutical composition thereof; wherein, W is a nitrogen atom and Y is void or, W is a carbon atom and Y=H; R1 to R7 may be the same or different and are independently selected from hydrogen or straight, branch
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