Patent application number | Description | Published |
20120116085 | METHOD FOR THE MANUFACTURING OF NALTREXONE - The present invention relates to an improved process for producing naltrexone[17-(cyclopropylmethyl)-4,5α-epoxy-3,14-dihydroxy-morphinan-6-one] from noroxymorphone[4,5-α-epoxy-3,14-dihydroxy-morphinan-6-one] by alkylation with a cyclopropylmethyl halide. | 05-10-2012 |
20120123123 | PREPARATION OF NALMEFENE HYDROCHLORIDE FROM NALTREXONE - Method for producing nalmefene hydrochloride from naltrexone, which method is particular well adapted for large-scale industrial application, and has been found to be efficient, to give a high yield and to afford highly pure nalmefene hydrochloride salt. | 05-17-2012 |
20140155608 | METHOD FOR THE MANUFACTURING OF NALTREXONE - The present invention relates to a new process for producing naltrexone [17-(cyclopropylmethyl)-4,5α-epoxy-3,14-dihydroxy-morphinan-6-one] from noroxymorphone [4,5-α-epoxy-3,14-dihydroxy-morphinan-6-one] by alkylation with a cyclopropylmethyl halide. | 06-05-2014 |
Patent application number | Description | Published |
20080293970 | Process for Synthesis of 4-4'-Diamino-Diphenyl-Sulfone - A new process for the preparation and purification of 4-4′-diamino-diphenyl-sulfone (dapsone) is described. The process described is a three step process comprising a condensation reaction with the synthesis of a thioeter intermediate and then steps of oxidation and reduction in suitable conditions in order to obtain a product with good yield and purity. | 11-27-2008 |
20110251228 | NALMEFENE HYDROCHLORIDE DIHYDRATE - The present invention relates to the Nalmefene hydrochloride dihydrate, methods of manufacturing Nalmefene hydrochloride dihydrate, a pharmaceutical composition comprising Nalmefene hydrochloride dihydrate and a method of treatment comprising administering Nalmefene hydrochloride dehydrate. | 10-13-2011 |
20130338365 | NALMEFENE HYDROCHLORIDE DIHYDRATE - The present invention relates to the Nalmefene hydrochloride dihydrate, methods of manufacturing Nalmefene hydrochloride dihydrate, a pharmaceutical composition comprising Nalmefene hydrochloride dihydrate and a method of treatment comprising administering Nalmefene hydrochloride dehydrate. | 12-19-2013 |
20140296525 | PROCESS FOR RECOVERY OF NALMEFENE HYDROCHLORIDE - The present invention relates to an improved process for recovery of nalmefene hydrochloride [17-(cyclopropylmethyl)-4,5- alpha-epoxy-6-methylenemorphinan-3,14-diol hydrochloride] from an aqueous composition containing nalmefene and certain impurities. | 10-02-2014 |
20150051253 | ( ) (2R,3S)-2-AMINO-3-HYDROXY-3-PYRIDIN-4-YL-1-PYRROLIDIN-1-YL-PROPAN-1-ON- E (L)-(+) TARTRATE SALT, ITS METHOD OF PRODUCTION AND USE - The present invention is directed to (−)-(2R,3S)-2-amino-3-hydroxy-3-pyridin-4-yl-1-pyrrolidin-1-yl-propan-1-one (L)-(+)tartrate salt, a pharmaceutical composition comprising said salt, a process for making said salt, and the use of said salt in the treatment of pain. | 02-19-2015 |