Patent application number | Description | Published |
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20110092596 | POLYMORPHS OF BROMFENAC SODIUM AND METHODS FOR PREPARING BROMFENAC SODIUM POLYMORPHS - Different polymorphs of bromfenac sodium may be prepared and interconverted using crystallization/recrystallization, drying and/or hydration techniques. | 04-21-2011 |
20120259118 | LOW ABUK OXYCODONE, ITS SALTS AND METHODS OF MAKING SAME - A method of preparing oxycodone includes forming 14-hydroxycodeine by reduction of 14-hydroxycodeinone and rearrangement of the 14-hydroxycodeine to form the oxycodone. During the reduction step, the ketone group of an undesirable contaminant precursor, 8,14-dihydroxy-7,8-dihydrocodeinone, is reduced to a hydroxyl group thus forming a triol. This triol is substantially inert with respect to reforming 14-hydroxycodeinone and can be readily separated from oxycodone. | 10-11-2012 |
20130023588 | POLYMORPHS OF BROMFENAC SODIUM AND METHODS FOR PREPARING BROMFENAC SODIUM POLYMORPHS - Different polymorphs of bromfenac sodium may be prepared and interconverted using crystallization/recrystallization, drying and/or hydration techniques. | 01-24-2013 |
20130289120 | POLYMORPHS OF BROMFENAC SODIUM AND METHODS FOR PREPARING BROMFENAC SODIUM POLYMORPHS - Different polymorphs of bromfenac sodium may be prepared and interconverted using crystallization/recrystallization, drying and/or hydration techniques. | 10-31-2013 |
20140011880 | POLYMORPHS OF BROMFENAC SODIUM AND METHODS FOR PREPARING BROMFENAC SODIUM POLYMORPHS - Different polymorphs of bromfenac sodium may be prepared and interconverted using crystallization/recrystallization, drying and/or hydration techniques. | 01-09-2014 |
20140018428 | POLYMORPHS OF BROMFENAC SODIUM AND METHODS FOR PREPARING BROMFENAC SODIUM POLYMORPHS - Different polymorphs of bromfenac sodium may be prepared and interconverted using crystallization/recrystallization, drying and/or hydration techniques. | 01-16-2014 |
20140206871 | LOW ABUK OXYCODONE, ITS SALTS AND METHODS OF MAKING SAME - A method of preparing oxycodone includes forming 14-hydroxycodeine by reduction of 14-hydroxycodeinone and rearrangement of the 14-hydroxycodeine to form the oxycodone. During the reduction step, the ketone group of an undesirable contaminant precursor, 8,14-dihydroxy-7,8-dihydrocodeinone, is reduced to a hydroxyl group thus forming a triol. This triol is substantially inert with respect to reforming 14-hydroxycodeinone and can be readily separated from oxycodone. | 07-24-2014 |