Hydroxylamine derivatives useful for enhancing the molecular...

C - Chemistry – Metallurgy – 07 – D

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C07D 413/14 (2006.01) A61K 31/155 (2006.01) A61K 31/185 (2006.01) A61K 31/22 (2006.01) A61K 31/435 (2006.01) A61K 31/495 (2006.01) A61K 31/535 (2006.01) A61K 31/55 (2006.01) C07C 259/02 (2006.01) C07C 259/06 (2006.01) C07C 259/18 (2006.01) C07C 275/64 (2006.01) C07C 279/18 (2006.01) C07D 213/78 (2006.01) C07D 213/89 (2006.01) C07D 215/54 (2006.01) C07D 217/26 (2006.01) C07D 273/04 (2006.01) C07D 295/088 (2006.01) C07D 295/15 (2006.01) C07D 307/68 (2006.01) C07D 333/38 (2006.01) C07D 401/04 (2006.01) C07D 40

Patent

CA 2209167

A method of increasing expression of a molecular chaperon by a cell and/or enhancing the activity of a molecular chaperon in cells is provided. The method comprises treating a cell that is exposed to a physiological stress which induces expression of a molecular chaperon by the cell with an effective amount of a certain hydroxylamine derivative to increase the stress. Alternatively, a hydroxylamine derivative can be administrated to a cell before it is exposed to a physiological stress which induces expression of a molecular chaperon by the cell. Preferably, the cell to which a hydroxylamine derivative is administered is a eukaryotic cell. The hydroxylamine derivative corresponds to the formulae (I) or (II). The invention also provides novel hydroxylamine derivatives falling within the scope of the formulae (I) and (II) as well as pharmaceutical and/or cosmetical compositions comprising the said compounds.

Procédé visant à accroître l'expression d'un chaperon moléculaire par une cellule et/ou à intensifier l'activité de celui-ci dans les cellules. Le procédé consiste à traiter une cellule qui est exposée à une tension physiologique induisant l'expression d'un chaperon moléculaire par la cellule avec une quantité efficace d'un certain dérivé d'hydroxylamine afin d'augmenter la tension. Selon une autre variante, un dérivé d'hydroxylamine peut être administré à une cellule avant d'être exposé à une tension physiologique induisant l'expression d'un chaperon moléculaire par la cellule. De préférence, la cellule dans laquelle est administré le dérivé d'hydroxylamine est une cellule eucaryote. Le dérivé d'hydroxylamine correspond aux formules (I) et (II). L'invention se rapporte également à des nouveaux dérivés d'hydroxylamine relevant des formules (I) et (II), ainsi qu'à des compositions pharmaceutiques et/ou cosmétiques comprenant ces composés.

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