Substituted quinazolines

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 487/04 (2006.01) A61K 31/505 (2006.01) A61P 43/00 (2006.01)

Patent

CA 2670123

This invention relates to the discovery of 3-and 5-substituted analogues of the selective platelet lowering agent anagrelide with reduced potential for cardiovascular side-effects which should lead to improved patient compliance and safety in the treatment of myeloproliferative diseases. More specifically, the present invention relates to certain imidazoquinazoline derivatives which have utility as platelet lowering agents in humans. The compounds of the present invention function by inhibiting megakaryocytopoeisis and hence the formation of blood platelets.

Cette invention porte sur la découverte d'analogues substitués en 3 et 5 de l'agent de diminution sélective des plaquettes anagrélide, présentant un potentiel réduit pour des effets secondaires cardio-vasculaires, qui devraient conduire à une compliance améliorée du patient et à une sécurité accrue dans le traitement de maladies myéloprolifératives. Plus spécifiquement, la présente invention porte sur certains dérivés d'imidazoquinazoline qui ont une utilité en tant qu'agents de diminution des plaquettes chez les êtres humains. Les composés de la présente invention agissent par inhibition de la mégakaryocytopoïèse et, de ce fait, de la formation des plaquettes sanguines.

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