The invention provides PDE9-inhibiting compounds of Formula (I),
and pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
3
, A, and n are as defined herein. Pharmaceutical compositions containing the compounds of Formula I, and uses thereof in treating neurodegenerative and cognitive disorders, such as Alzheimer's disease and schizophrenia, are also provided.
[EN] PYRAZOLO[3,4-D]PYRIMIDIN-4(5H)-ONE DERIVATIVES AS PDE9 INHIBITORS<br/>[FR] UTILISATION DE DÉRIVÉS DE PYRAZOLO[3,4-D]PYRIMIDIN-4(5H)-ONE COMME INHIBITEURS DE PDE9
申请人:CELON PHARMA SA
公开号:WO2014016789A1
公开(公告)日:2014-01-30
A compound of the general formula (I) wherein R1 is selected from the group consisting of phenyl unsubstituted or substituted with 1 to 3 substituents selected from F, Cl, Br, I, CN, -O-C1-C3-alkyl, fluorinated -O-C1-C3-alkyl, -(CH2)mOH and 5-membered heterocyclic group with 1 or 2 heteroatoms selected from N, O and S; and 6- or 10-membered heteroaryl with 1 to 3 heteroatoms selected from O, N and S; R2 and R3 independently of each other represent H atom or straight or branched C1-C3 alkyl; R4 is selected from the group consisting of 4- to 6- membered cycloalkyl, wherein one of carbon atoms can be replaced by O atom, and which is unsubstituted or substituted with one or two halogen atoms,and straight or branched C1-C4 alkyl; Q represents a bond or C1-C3-alkylene, which can be optionally substituted by one to three C1-C3-alkyls; X is selected from the group consisting of O, NR5, and S(O)p; R5 represents H atom or C1-C3alkyl; m is 1, 2 or 3; p is 0, 1 or 2; and salts thereof, for use as a medicament, in particular for treating cognitive function disorders and neurodegenerative diseases.
SUBSTITUTED METHYL PYRAZOLOPYRIMIDINONE AND METHYL IMIDAZOPYRAZINONE COMPOUNDS AS PDE1 INHIBITORS
申请人:Dart NeuroScience, LLC
公开号:US20190177327A1
公开(公告)日:2019-06-13
A chemical entity of Formula (I) or Formula (II):
wherein R
a
, R
b
, R
e
, and R
f
have any of the values described herein, and compositions comprising such chemical entities; methods of making them; and their use in a wide range of methods, including metabolic and reaction kinetic studies; detection and imaging techniques; radioactive treatments; modulating and treating disorders mediated by PDE1 activity or dopaminergic signaling; treating neurological disorders, CNS disorders, dementia, neurodegenerative diseases, and trauma-dependent losses of function; treating stroke, including cognitive and motor deficits during stroke rehabilitation; facilitating neuroprotection and neurorecovery; enhancing the efficiency of cognitive and motor training, including animal skill training protocols; and treating peripheral disorders, including cardiovascular, renal, hematological, gastroenterological, liver, cancer, fertility, and metabolic disorders.
Synthesis and Structure–Activity Relationship (SAR) Studies of Novel Pyrazolopyridine Derivatives as Inhibitors of Enterovirus Replication
作者:Yanpeng Xing、Jun Zuo、Paul Krogstad、Michael E. Jung
DOI:10.1021/acs.jmedchem.7b01863
日期:2018.2.22
A series of novelpyrazolopyridine compounds have been designed and prepared by a general synthetic route. Their activities against the replication of poliovirus-1, EV-A71, and CV-B3 enteroviruses were evaluated. The comprehensive understanding of the structure–activity relationship was obtained by utilizing the variation of four positions, namely, N1, C6, C4, and linker unit. From the screened analogues