Patent ID: 8685987

Claim:
A compound of the formula (I) a stereoisomer or a mixture of its stereoisomers, or a pharmaceutically acceptable addition salt thereof, wherein R 1 , R 2 , R 3 and R 4 , independently of each other, are hydrogen, halogen, C 1-6 -alkyl, C 3-7 -cycloalkyl or C 1-6 -alkoxy; X is halogen; Râ€² and Râ€³, independently of each other, are hydrogen or C 1-6 -alkyl, and R is hydrogen or C 1-6 -alkyl; with the proviso that the compound is not N-{7-[1-(4-Chloro-2-methylphenoxy)ethyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl}-Nâ€²-methoxy-formamidine; or N-{7-[1-(4-Fluorophenoxy)ethyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl}-Nâ€²-methoxy-formamidine.