Method and compositions for inhibiting protein kinases

A - Human Necessities – 61 – K

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A61K 31/365 (2006.01) A61K 31/366 (2006.01)

Patent

CA 2203757

A method for selectively inhibiting a kinase is disclosed, which comprises contacting a composition containing a kinase with a molecule of formula (I) wherein R1 is H, lower alkyl, or lower alkanoyl; R2 is H, lower alkyl, or lower alkanoyl; R3 and R4 together represent a cis double bond or -O- or each of R3 and R4 independently represents H or OR; R5 is =O, =S, or -H, -OR; R6 and R7 together represent a double bond or -O- or each of R6 and R7 independently represents H or OR; R8 and R9 together represent a double bond or -O- or each of R8 and R9 independently represents H or OR; and each R independently represents H, lower alkyl, or lower alkanoyl.

L'invention concerne un procédé d'inhibition sélective d'une kinase. Ce procédé comprend la mise en contact d'une combinaison contenant une kinase avec une molécule répondant à la formule (I). Dans cette formule, R¿1? est H, un alcoyle inférieur ou un alcanoyle inférieur; R¿2? est H, un alcoyle inférieur ou un alcanoyle inférieur; R¿3? et R¿4? représentent ensemble une double liaison de structure cis, ou -O-, ou bien R¿3? et R¿4? représentent chacun, de façon indépendante, H ou OR; R¿5? est =O, =S ou -H, -OR; R¿6? et R¿7? représentent ensemble une double liaison ou -O-, ou bien R¿6? et R¿7? représentent chacun, de façon indépendante, H ou OR; R¿8? et R¿9? représentent ensemble une double liaison ou -O-, ou bien R¿8? et R¿9? représentent chacun, de façon indépendante, H ou OR; et chaque R représente de façon indépendante H, un alcoyle inférieur ou un alcanoyle inférieur.

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