Alkyl, alkenyl and alkynyl chrysamine g derivatives for the...

C - Chemistry – Metallurgy – 09 – B

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C09B 23/14 (2006.01) A61K 31/60 (2006.01) A61K 49/00 (2006.01) A61K 49/06 (2006.01) A61K 51/00 (2006.01) C07B 59/00 (2006.01) C07C 63/66 (2006.01) C07C 65/19 (2006.01) C07C 65/28 (2006.01) C07C 69/88 (2006.01) C07C 69/94 (2006.01) C07D 209/48 (2006.01) C07D 217/24 (2006.01) C07D 221/14 (2006.01) C07D 237/32 (2006.01) C07D 257/04 (2006.01) C07D 261/20 (2006.01) C07D 265/02 (2006.01) C07D 265/26 (2006.01) C07D 271/10 (2006.01) C07F 7/22 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2286607

Amyloid binding compounds which are non-azo derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, such as Down's Syndrome are described. Pharmaceutical compositions containing non-azo derivatives of Chrysamine G and methods using such compositions to prevent cell degeneration and amyloid-induced toxicity in amyloidosis associated conditions are also described. Methods using non-azo Chrysamine G derivatives to stain or detect amyloid deposits in biopsy or post-mortem tissue are also described. Methods using non-azo Chrysamine G derivatives to quantify amyloid deposits in homogenates of biopsy and post-mortem tissue are also described.

L'invention concerne des composés se fixant à la substance amyloïde et qui sont des dérivés non azo de la chrysamine G, des compositions pharmaceutiques comprenant ces composés et des procédés les utilisant dans le but d'identifier in vivo, dans un cerveau, la maladie d'Alzheimer et de diagnostiquer d'autres états pathologiques caractérisés par l'amylose tels que le syndrome de Down. Elle concerne également des compositions pharmaceutiques contenant des dérivés non azo de la chrysamine G ainsi que des procédés d'utilisation de ces compositions visant à empêcher la dégénérescence cellulaire et la toxicité induite par la substance amyloïde dans des états associés à l'amylose. Elle concerne en outre des procédés dans lesquels on utilise des dérivés non azo de la chrysamine G afin de marquer ou de détecter des dépôts de substance amyloïde dans un tissu biopsique ou prélevé post mortem. Elle concerne enfin des procédés d'utilisation de dérivés non azo de la chrysamine G afin de quantifier les dépôts de substance amyloïde dans des homogénats de tissu biopsique ou prélevé post mortem.

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