[EN] IMIDAZO[2,1]THIAZOL-3-ONE DERIVATIVES USEFUL AS DIAGNOSTIC AGENTS FOR ALZHEIMER'S DISEASE<br/>[FR] DÉRIVÉS IMIDAZO[2,1]THIAZOL-3-ONE UTILES COMME AGENTS DE DIAGNOSTIC DE LA MALADIE D'ALZHEIMER
申请人:HOFFMANN LA ROCHE
公开号:WO2014026881A1
公开(公告)日:2014-02-20
The invention relates to imidazo[2,1-b]thiazol-3-one derivatives of formula (I) wherein the variables are as defined in the claims. It has been shown that the present compounds may be used for binding and imaging tau aggregates and related b-sheet aggregates including besides others beta-amyloid aggregates or alpha-synuclein aggregates, especially for use in binding and imaging tau aggregates in Alzheimer patients.
The invention relates to imidazo[2,1-b]thiazol-3-one derivatives of formula
wherein the variables are defined herein,
or to a pharmaceutically acceptable acid addition salt, to a racemic mixture or to its corresponding enantiomer and/or optical isomers thereof.
It has been shown that the present compounds may be used for binding and imaging tau aggregates and related b-sheet aggregates including besides others beta-amyloid aggregates or alpha-synuclein aggregates, especially for use in binding and imaging tau aggregates in Alzheimer's patients.
The present invention relates to novel pyrazolo- and imidazo-pyrimidine derivatives of formula I
wherein A, D, E, L, M, Q, R
1
, R
2
and R
3
are as defined hereinabove. The present invention also relates to a process for their preparation, a pharmaceutical composition containing said derivatives and a method of treating or preventing acute or chronic neurological disorder comprising administering to a patient in need of such treatment a pharmaceutical composition comprising a therapeutically effective amount of at least one such derivatives. These disorders include acute and chronic disorders
Substituted pyrazolo[1,5-a]pyrimidines as inhibitors of metabotropic glutamate receptors
申请人:Hoffmann-La Roche Inc.
公开号:US07514443B2
公开(公告)日:2009-04-07
The present invention relates to novel pyrazolo- and imidazo-pyrimidine derivatives of formula I
wherein A, D, E, L, M, Q, R1, R2 and R3 are as defined hereinabove. The present invention also relates to a process for their preparation, a pharmaceutical composition containing said derivatives and a method of treating or preventing acute or chronic neurological disorder comprising administering to a patient in need of such treatment a pharmaceutical composition comprising a therapeutically effective amount of at least one such derivatives. These disorders include acute and chronic disorders.