Patent ID: 8232279

Claim:
A pharmaceutical composition comprising a pyrazolopyrimidine compound or a pharmaceutically acceptable salt of the formula 1 and a pharmaceutically acceptable carrier for the prevention and treatment of serotonin 5-HT 2C -related central nervous system diseases selected from the group consisting of obesity, depression, anxiety and withdrawal symptoms due to drug abuse: wherein R 1 , R 2 , R 3 , R 4 , and R 5 independently represent H, halogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy; and R 6 is selected from the group consisting of C 1 -C 6 alkylamino, di(C 1 -C 6 alkyl)amino, C 1 -C 6 hydroxyalkylamino, C 1 -C 6 alkoxyC 1 -C 6 alkylamino, C 2 -C 6 alkenylamino, C 3 -C 6 cycloalkylamino, substituted or unsubstituted benzylamino, morpholino C 1 -C 6 alkylamino, morpholinyl, substituted or unsubstituted piperidinyl, substituted or unsubstituted piperazinyl; wherein the above substituted benzyl, piperidinyl, or piperazinyl represents benzyl, piperidinyl, or piperazinyl substituted with 1-3 substituents selected from the group consisting of C 1 -C 6 alkyl, hydroxy C 1 -C 6 alkyl, phenyl, halophenyl, C 1 -C 6 alkoxyphenyl, benzyl, and halobenzyl.