2H-PYRAZOLO 4,3-DPYRIMIDIN-5-AMINE DERIVATIVES AS H4 HISTAMINE RECEPTOR ANTAGONISTS FOR THE TREATMENT OF ALLERGIC, IMMUNOLOGICAL AND INFLAMMATORY DISEASES

摘要

Pyrazolopyrimidine derivatives of formula (I), wherein the meaning of the different substituents are those indicated in the description. These compounds are useful as histamine H4 receptor antagonists.