Class / Patent application number | Description | Number of patent applications / Date published |
564366000 | Halogen attached directly or indirectly to the acyclic carbon or chain by acyclic nonionic bonding with no amino nitrogen between the halogen and the aryl ring or ring system | 6 |
20080319228 | Method of fluorination - A method of fluorination comprising reacting monosaccharides, oligosaccharides, polysaccharides, composite saccharides formed by bonding of these saccharides with proteins and lipids and saccharides having polyalcohols, aldehydes, ketones and acids of the polyalcohols, and derivatives and condensates of these compounds with a fluorinating agent represented by general formula (I) thermally or under irradiation with microwave or an electromagnetic wave having a wavelength around the microwave region. In accordance with the method, the fluorination at a selected position can be conducted safely at a temperature in the range of 150 to 200° C. where the reaction is difficult in accordance with conventional methods. The above method comprising the irradiation with microwave or an electromagnetic wave having a wavelength around the microwave region can be applied to substrates other than saccharides. When a complex compound comprising HF and a base is reacted under irradiation with microwave, fluorination at a specific position which is difficult in accordance with conventional methods proceeds highly selectively, efficiently in a short time and safely. | 12-25-2008 |
20090124833 | Process for the Purification of Benzphetamine Hydrochloride - The present invention relates to the economical and separation of benzphetamine hydrochloride and methamphetamine by liquid extraction. An extraction process employing a suitable organic solvent and water at a pH in the range of from about 6 to about 8 provides excellent removal of the methamphetamine by dissolution in the water phase while the benzphetamine dissolves in the organic phase. Simple separation of the two phases results in separation of the two amines. | 05-14-2009 |
20100016638 | Method for preparation of o-desmethylvenlafaxine using polythiolates - This invention relates to methods of making O-desmethylvenlafaxine from venlafaxine. In the methods venlafaxine is contacted with a polythiolate. The polythiolate may be prepared from the corresponding polythiol in the presence of base. The present methods provide the O-desmethylvenlafaxine in good yields and high purity and are suitable for use on an industrial scale. | 01-21-2010 |
20110015438 | PROCESS FOR THE PREPARATION OF INTERMEDIATES RELATED TOTHE 5-HT2C AGONIST (R)-8-CHLORO-1-METHYL-2,3,4,5,-TETRAHYDRO-1H-3-BENZAZEPINE - The present invention provides processes and intermediates useful in the preparation of 8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine, a serotonin (5-HT) receptor agonist that is useful in the treatment or prophylaxis of, for example, central nervous system disorders, such as obesity. | 01-20-2011 |
20120101302 | NOVEL PRECURSOR MOLECULES FOR F-18 LABELLED PET TRACERS - This invention relates to novel compounds suitable as precursors for the preparation of certain F-18 labeled positron emission tomography (PET) tracers. Furthermore, the invention relates to the preparation of such precursor molecules and to the preparation of PET tracers by F-18 labeling of such precursors. | 04-26-2012 |
20120238778 | PROCESS FOR PREPARING CINACALCET - A process for preparing N-[(1R)-1-(1-naphthyl)ethyl]-3-[3-(trifluoromethyl)-phenyl]propan-1-amine of formula hydrochloride salt of formula (I) | 09-20-2012 |