Acylated oligopeptide derivatives having cell signal...

C - Chemistry – Metallurgy – 07 – K

Patent

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C07K 5/107 (2006.01) A61K 31/66 (2006.01) A61K 38/05 (2006.01) A61K 38/06 (2006.01) A61K 38/07 (2006.01) C07F 9/12 (2006.01) C07F 9/547 (2006.01) C07K 5/02 (2006.01) C07K 5/023 (2006.01) C07K 5/06 (2006.01) C07K 5/065 (2006.01) C07K 5/072 (2006.01) C07K 5/08 (2006.01) C07K 5/087 (2006.01) C07K 5/10 (2006.01) C07K 14/71 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2227516

The invention relates to an acylated peptide, namely a compound of formula (I), wherein n is 0 to 15, X is arylcarbonyl, cycloalkylcarbonyl, tricycloalkylcarbonyl, arylsulfonyl, heterocyclylcarbonyl, heterocyclylsulfonyl, carbamoyl-lower alkanoyl, aryl-lower alkylcarbonyl, cycloalkyl-lower alkylcarbonyl, aryl-lower alkylsulfonyl, heterocyclyl-lower alkylcarbonyl, heterocyclyl-lower alkylsulfonyl with the proviso that in any of the lower alkyl radicals mentioned a methylene group may be replaced with oxa, aza or thia; heterocyclyl-lower alkenylcarbonyl or aryl-lower alkenylcarbonyl; or, if Y is a secondary or tertiary amino group, is one of the moieties X mentioned above or lower alkanoyl, halo-lower alkanoyl, lower- alkoxycarbonyl, aryl-lower alkoxycarbonyl or cycloalkyl-lower alkoxycarbonyl; PTI is the bivalent radical of tyrosine or (preferably) the bivalent radical of phosphotyrosine or a phosphotyrosine mimic, AA stands for a bivalent radical of a natural or unnatural amino acid, and Y is hydroxy, a C-terminal protecting group or a primary, secondary or tertiary amino group, or a salt thereof, said compound being useful for the treatment of diseases that respond to inhibition of the interaction of (a) protein(s) comprising (an) SH2 domain(s) and a protein tyrosine kinase or a modified version thereof.

L'invention concerne un peptide acylé, en l'occurrence un composé de formule (I). Dans cette formule, n est compris entre 0 et 15; X est un arylcarbonyle, cycloalkylcarbonyle, tricycloalkylcarbonyle, arylsulfonyle, hétérocyclylcarbonyle, hétérocyclylsulfonyle, carbamoyl(alcanoyle inférieur), aryl(alkyle inférieur)carbonyle, cycloalkyl(alkyle inférieur)carbonyle, aryl(alkyle inférieur)sulfonyle, hétérocyclyl(alkyle inférieur)carbonyle, hétérocyclyl(alkyle inférieur)sulfonyle, à condition qu'un groupe méthylène de l'un quelconque de ces radicaux alkyle inférieur puisse être remplacé par oxa, aza ou thia; hétérocyclyl(alcényle inférieur)carbonyle ou aryl(alcényle inférieur)carbonyle; ou, si Y est un groupe amine secondaire ou tertiaire, une fractions X ci-dessus, ou un alcanoyle inférieur, halo(alcanoyle inférieur), (alcoxy inférieur)carbonyle, aryl(alcoxy inférieur)carbonyle ou cycloalkyl(alcoxy inférieur)carbonyle; PTI est le radical bivalent de la tyrosine, ou de préférence de la phosphotyrosine ou encore d'une substance mimétique de la phosphotyrosine, AA est un radical bivalent d'un acide aminé naturel ou synthétique et Y est un hydroxy, un groupe protégeant l'extrémité C-terminale ou un groupe amine primaire, secondaire ou tertiaire. L'invention concerne également les sels dudit peptide. Ce composé et ses sels sont utiles pour traiter des maladies réagissant à l'inhibition de l'interaction entre une ou des protéines comprenant un ou des domaines SH2, et une protéine tyrosine kinase, ou une version modifiée d'une telle kinase.

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