New compounds suitable as precursors to compounds that are...

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 405/04 (2006.01) A61K 31/443 (2006.01) A61K 51/04 (2006.01) A61P 25/28 (2006.01) C07D 307/78 (2006.01)

Patent

CA 2735497

The present invention relates to novel derivatives that are suitable as precursors to compounds that are useful for imaging amyloid deposits in living patients, their compositions, methods of use and processes to make such compounds. The compounds deriving from these precursors are useful in methods of imaging amyloid deposits in brain in vivo to allow antemortem diagnosis of Alzheimer's disease by positron emission tomography (PET) as well as measuring clinical efficacy of Alzheimer's disease therapeutic agents. Furthermore, the present invention also discloses the precursor compounds in crystalline form.

La présente invention concerne de nouveaux dérivés qui sont appropriés en tant que précurseurs de composés qui sont utiles pour limagerie de dépôts amyloïdes chez des patients vivants, leurs compositions, leurs procédés dutilisation et des procédés de fabrication de tels composés. Les composés dérivant de ces précurseurs sont utiles dans des procédés dimagerie in vivo de dépôts amyloïdes dans le cerveau pour permettre un diagnostic ante-mortem de la maladie dAlzheimer par tomographie par émission de positrons (PET), ainsi que pour mesurer lefficacité clinique dagents thérapeutiques pour la maladie dAlzheimer. Par ailleurs, la présente invention concerne également les composés précurseurs sous forme cristalline.

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