Substituted quinazolines for reducing platelet count
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United States of America Patent
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Nov 6, 2012
Grant Date -
Jul 24, 2008
app pub date -
Nov 28, 2007
filing date -
Nov 28, 2006
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Abstract
This invention relates to the discovery of prodrugs of 3-or 5-substituted analogues of the selective platelet lowering agent anagrelide which have reduced potential for cardiovascular side-effects and which should therefore lead to improved patient compliance and safety in the treatment of myeloproliferative diseases. More specifically, the present invention relates to prodrugs of certain imidazoquinazoline derivatives which have utility as platelet lowering agents in humans. The compounds of the present invention function by inhibiting the formation of blood platelets. An example of a compound of the present invention is methyl 2-(2-amino-5,6- dichloroquinazolin-3 (4H)-yl)-2-methylpropanoate or the 3,3-demethyl anagrelide open-ringed analog.
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