1, 5-DIHYDRO-PYRAZOLO (3, 4-D) PYRIMIDIN-4-ONE DERIVATIVES AND THEIR USE AS PDE9A MUDULATORS FOR THE TREATMENT OF CNS DISORDERS
申请人:Eickmeier Christian
公开号:US20110015193A1
公开(公告)日:2011-01-20
The invention relates to novel substituted pyrazolopyrimidines. Chemically, the compounds are characterised by general Formula (I): with R
1
being phenyl or pyridyl, any of which is substituted with 1 to 4, preferably 1 to 3 substituents X; X independently of each other being selected from C
2
-C
6
-alky
1
or Ci-C
6
-alkoxy, where C
2
-C
6
-alkyl and C
1
-C
6
-alkoxy are at least dihalogenated up to perhalogenated. preferably with 2 to 6 halogen substituents, and the halogen atoms being selected from the group of fluoro, chloro and bromo, preferably fluoro; R
2
being phenyl or heteroaryl, where phenyl is substituted by 1 to 3 radicals and heteroaryl is optionally substituted by 1 to 3 radicals in each case independently of one another selected from the group of C
1
-C
6
-alkyI, C
1
-C
6
-alkoxy, hydroxycarbonyl, cyano, trifluoromethyl, amino, nitro, hydroxy, C
1
-C
6
-alkylamino, halogen, C
6
-C
10
-arylcarbonylamino, C
1
-C
6
-alkylcarbonylamino, C
1
-C
6
-alkylaminocarbonyl. C
1
-C
6
-alkoxycarbonyl, C
6
-C
10
-arylaminocarbonyl, heteroarylaminocarbonyl. heteroarylcarbonylamino, C
1
-C
6
-alkylsulphonyl-amino, C
1
-C
6
-alkylsulphonyl and C
1
-C
6
-alkylthio; The new compounds shall be used for the manufacture of medicaments, in particular medicaments for improving, perception, concentration, learning and/or memory in patients in need thereof.