6-cyclylmethyl- and 6-alkylmethyl pyrazolo3,4-Dpyrimidines, methods for their preparation and methods for their use to treat impairments of perception, concentration learning and/or memory

摘要

Described are 6-cyclylmethyl- and 6-alkylmethyl-substituted pyrazolo[3,4-d]pyrimidines of the formula (I):; as defined herein, processes for their preparation and their use for producing medicaments for treating impairment of perception, concentration, learning and/or memory.