Methods of treating leukemia

A - Human Necessities – 61 – K

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A61K 31/506 (2006.01) A61K 31/675 (2006.01) A61K 45/00 (2006.01) A61P 35/02 (2006.01) A61P 43/00 (2006.01) C07D 405/04 (2006.01)

Patent

CA 2465682

The present invention provides a novel method for treating leukemia in a host that has been previously treated with a BrcAbl tyrosine kinase inhibitor comprising administering to the host a therapeutically effective amount of a compound having the formula I: wherein B is cytosine or 5-fluorocytosine and R is selected from H, monophosphate, diphosphate, triphosphate, carbonyl substituted with. a C1-5 alkyl, C1-5 alkenyl, C1-5 alkynyl, C5-10 aryl, and and wherein each. Rc is independently selected from the group comprising H, C1- 5, alkyl, C1-5 alkenyl, C1-5.alkynyl an hydroxy protecting group

La présente invention concerne une nouvelle technique de traitement de la leucémie chez un hôte ayant été préalablement traité avec un inhibiteur de tyrosine kinase BrcAbl. Cette technique consiste à administrer à cet hôte une quantité thérapeutiquement efficace d'un composé représenté par la formule (I). Dans cette formule, B est cytosine ou 5-fluorocytosine et R est sélectionné parmi H, monophosphate, diphosphate, triphosphate, carbonyle substitué avec un C¿1-6? alkyle, C¿2-6? alkényle, C¿2-6? alkynyle, C¿6-10? aryle et chaque Rc est indépendamment sélectionné dans le groupe constitué de H, C¿1-6? alkyle, C¿2-6? alkényle, C¿2-6? alkynyle et un groupe protecteur hydroxy.

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