N-[1-[2,2-Difluoro-2-[4-(trifluoromethyl)phenyl]ethyl]-4-piperidinyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine

for the following products N-(1-(2,2-Difluoro-2-(4-(trifluoromethyl)phenyl)ethyl)piperidin-4-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine and N-[1-[2,2-Difluoro-2-[4-(trifluoromethyl)phenyl]ethyl]-4-piperidinyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine