CRYSTALLIZATION OF IDARUBICIN HYDROCHLORIDE
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United States of America Patent
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Issued Date -
Aug 14, 2014
app pub date -
Sep 4, 2012
filing date -
Sep 19, 2011
priority date (Note) -
Abandoned
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Abstract
A method is provided for production of crystalline idarubicin hydrochloride, the method including the steps of: (i) producing a mixture containing (a) idarubicin hydrochloride, (b) at least one alcohol selected from 1-butanol, 2-butanol, and 1-pentanol, and (c) water; and (ii) crystallizing idarubicin hydrochloride from this mixture. A crystalline idarubicin hydrochloride is also provided characterized by a powder x-ray diffraction pattern in which at least reflexes at diffraction angles occur in the following ranges (in 2Θ): 7.2-7.7; 11.7-12.2; 16.2-16.7; 16.7-17.2; 19.6-20.1; 19.8-20.3; 22.2-22.7, and 22.9-23.4.
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