Forms of dexlansoprazole and processes for the preparation thereof
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United States of America Patent
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May 19, 2015
Grant Date -
Mar 14, 2013
app pub date -
Aug 19, 2010
filing date -
Aug 19, 2009
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Abstract
Provided is dexlansoprazole propylene glycolate hydrate. Polymorphic forms thereof are also provided. The dexlansoprazole propylene glycolate hydrate maybe such that the propylene glycol component is present in approximately equal proportions of (R) absolute configuration and (S) absolute configuration, or present in predominantly (R) absolute configuration, or predominantly (S) absolute configuration. Salts of dexlansoprazole are also provided. In particular, crystalline dexlansoprazole isopropylammonium salt and crystalline MTBE solvate of dexlansoprazole t-butylammonium salt are provided. Pharmaceutical formulations comprising dexlansoprazole propylene glycolate hydrate are also provided. Furthermore, processes for preparation of dexlansoprazole propylene glycolate hydrate are provided.
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