The present invention relates to pyrazolo[1,5-a][1,3,5]
triazine derivatives and pyrazolo[1,5-a]
pyrimidine derivatives and / or pharmaceutically acceptable salts thereof, and the use of these derivatives as pharmaceutically active agents, particularly for the prevention and / or treatment of
cell proliferative diseases, inflammatory diseases,
immunological diseases, cardiovascular diseases, and infectious diseases. Furthermore, the present invention relates to pharmaceutical compositions comprising at least one of the pyrazolo[1,5-a][1,3,5]
triazine derivatives and pyrazolo[1,5-a]
pyrimidine derivatives and / or pharmaceutically acceptable salts thereof.