The invention provides a chemokine receptor activity modulator containing a pyrazolopyrimidine derivative represented by the formula (I)
wherein R
1
, R
2
, R
3
, and R
4
are as described herein.
该发明提供了一种包含由式(I)表示的
吡唑吡咯啉衍
生物的
趋化因子受体活性调节剂,其中R1、R2、R3和R4如本文所述。