Substituted imidazo[1,5-a]pyrazines as PDE9 inhibitors

US9993477B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9993477-B2
Application numberUS-201715452827-A
CountryUS
Kind codeB2
Filing dateMar 8, 2017
Priority dateOct 10, 2011
Publication dateJun 12, 2018
Grant dateJun 12, 2018

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

This invention is directed to compounds, which are PDE9 enzyme inhibitors. The invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. The present invention also provides processes for the preparation of the compounds of formula (I) The present invention further provides a method of treating a subject suffering from a neurodegenerative disorder comprising administering to the subject a therapeutically effective amount of a compound of formula (I). The present invention further provides a method of treating a subject suffering from a psychiatric disorder comprising administering to the subject a therapeutically effective amount of a compound of formula (I).

First claim

Opening claim text (preview).

The invention claimed is: 1. A method for inhibiting phosphodiesterase 9 activity in a subject, comprising administering to the subject a therapeutically effective amount of 6-[4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl]-3-tetrahydropyran-4-yl-7H-imidazo[1,5-a]pyrazin-8-one, or a tautomer or a pharmaceutically acceptable acid addition salt thereof. 2. The method of claim 1 , wherein the subject has a neurodegenerative disorder selected from the group consisting of Alzheimer's disease, mental retardation, cognitive impairment associated with schizophrenia, attention-deficit/hyperactivity disorder, age-related cognitive decline, and substance-induced psychotic disorder. 3. The method of claim 2 , wherein the substance-induced psychotic disorder is psychosis induced by alcohol, psychosis induced by amphetamine, psychosis induced by cannabis , psychosis induced by cocaine, psychosis induced by hallucinogens, psychosis induced by inhalants, psychosis induced by opioids, or psychosis induced by phencyclidine. 4. A method for inhibiting phosphodiesterase 9 activity in a subject, comprising administering to the subject a therapeutically effective amount of a pharmaceutical composition comprising 6-[4-methyl-1-(pyrimidin-2-ylmethyl)pyrrolidin-3-yl]-3-tetrahydropyran-4-yl-7H-imidazo[1,5-a]pyrazin-8-one, or a tautomer or a pharmaceutically acceptable acid addition salt thereof, and one or more pharmaceutically acceptable carriers, diluents or excipients. 5. The method of claim 4 , wherein the subject has a neurodegenerative disorder selected from the group consisting of Alzheimer's disease, mental retardation, cognitive impairment associated with schizophrenia, attention-deficit/hyperactivity disorder, age-related cognitive decline, and substance-induced psychotic disorder. 6. The method of claim 5 , wherein the substance-induced psychotic disorder is psychosis induced by alcohol, psychosis induced by amphetamine, psychosis induced by cannabis , psychosis induced by cocaine, psychosis induced by hallucinogens, psychosis induced by inhalants, psychosis induced by opioids, or psychosis induced by phencyclidine.

Assignees

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Classifications

  • Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00 · CPC title

  • for treating abnormal movements, e.g. chorea, dyskinesia · CPC title

  • for treating abuse or dependence · CPC title

  • Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia · CPC title

  • for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia · CPC title

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What does patent US9993477B2 cover?
This invention is directed to compounds, which are PDE9 enzyme inhibitors. The invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. The present invention also provides processes for the preparation of the compounds of formula (I) The present invention fur…
Who is the assignee on this patent?
H Lundbeck As
What technology area does this patent fall under?
Primary CPC classification C07D487/04. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jun 12 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).