- 6 - CYCLOBUTYL - 1, 5 - DIHYDRO - PYRAZOLO [3, 4-D] PYRIMIDIN- 4 - ONE DERIVATIVES THEIR USE AS PDE9A INHIBITORS
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The invention relates to novel pyrazolopyrimidinones according to formula (I), wherein R1 is a pyridyl or pyrimidinyl group and D is optionally substituted cyclopentyl, cyclohexyl, tetrahydrofuranyl, tetrahydropyranyl or 2-, 3-or 4-pyridyl. The
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Page/Page column 62
(2012/09/10)
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- 6-Cycloalkyl-pyrazolopyrimidinones for the Treatment of CNS Disorders
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The invention relates to novel 6-Cycloalkyl-pyrazolopyrimidinones according to formula (I). wherein R1 is a 5 or 6 membered aromatic heteroaryl-group, R2 is an optional substituent, D is optionally substituted cyclopentyl, cyclohexyl
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- 6-CYCLOALKYL-1, 5-DIHYDRO-PYRAZOLO [3, 4-D] PYRIMIDIN-4-ONE DERIVATIVES AND THEIR USE AS PDE9A INHIBITORS
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The invention relates to novel 6-Cycloalkyl-pyrazolopyrimidinones according to formula (I) wherein R1 is a 5 or 6 membered aromatic heteroaryl-group, R2 is an optional substituent, D is optionally substituted cyclopentyl, cyclohexyl,
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Page/Page column 89-90
(2012/03/09)
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