- Nitrilases
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The invention relates to nitrilases and to nucleic acids encoding the nitrilases. In addition, methods of designing new nitrilases and methods of use thereof are also provided. The nitrilases have increased activity and stability at increased pH and temperature.
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Paragraph 0349
(2015/09/22)
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- Nitrilases, nucleic acids encoding them and methods for making and using them
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The invention relates to nitrilases and to nucleic acids encoding the nitrilases. In addition methods of designing new nitrilases and method of use thereof are also provided. The nitrilases have increased activity and stability at increased pH and temperature.
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Page/Page column 70
(2016/01/09)
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- Solid phase behavior in the chiral systems of various 2-hydroxy-2-phenylacetic acid (mandelic acid) derivatives
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The solid phase behavior of a series of monosubstituted F-, Cl-, Br-, I-, and CH3- and two 2,4-halogen-disubstituted 2-hydroxy-2-phenylacetic acid (mandelic acid) derivatives was investigated. The study includes detailed information about melting temperature, melting enthalpy, X-ray diffraction data, as well as selected binary phase diagrams of the respective chiral systems. Aside from the known metastable conglomerate 2-chloromandelic acid, evidence for two more metastable conglomerates was found.
- Von Langermann, Jan,Temmel, Erik,Seidel-Morgenstern, Andreas,Lorenz, Heike
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p. 721 - 728
(2015/03/30)
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- Relationships between the racemic structures of substituted mandelic acids containing 8- and 10-membered hydrogen bonded dimer rings
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The structures of 27 monosubstituted mandelic acids, including several of their polymorphs, plus unsubstituted mandelic acid itself (two polymorphs) are investigated for structural similarity. The results, presented pictorially as a structural relationship plot, show that rather more structures are built up from the carboxyl-chain hydroxyl hydrogen bonded dimer than from the conventional carboxylic acid dimer. The results show how all the structures are related and, based on the two types of dimer, the degree of similarity that they possess. Some structures with Z′ > 1 contain both sorts of dimers and there are many examples of isostructural sets within the structures so far determined. We also present an example where analysing similarity in related families of structures highlights a structure that should be present and which has indeed then proceeded to be synthesised and determined.
- Coles,Ellis,Leung,Sarson,Threlfall,Tizzard
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p. 10816 - 10823
(2015/02/19)
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- Amberlyst A-26: An efficient and reusable heterogeneous catalyst for a one-pot oxidation-Cannizarro reaction
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Amberlyst A-26 catalyses the efficient synthesis of α-hydroxy- arylacetic acids from aryl methyl ketones in the presence of SeO2. After simple separation, the catalyst does not lose its activity and can be reused without significant loss in activity for at least four cycles.
- Shen, Ming-Gui,Shang, Shi-Bin,Song, Zhan-Qian,Wang, Dan,Rao, Xiao-Ping,Gao, Hong,Liu, He
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- Inhibitors of viral replication, their process of preparation and their therapeutical uses
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The present invention relates to compounds, their use in the treatment or the prevention of viral disorders, including HIV.
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Page/Page column 43
(2012/11/06)
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- INHIBITORS OF VIRAL REPLICATION, THEIR PROCESS OF PREPARATION AND THEIR THERAPEUTICAL USES
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The present invention relates to compounds, their use in the treatment or the prevention of viral disorders, including HIV.
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Page/Page column 61; 80
(2012/11/06)
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- Ytterbium triflate-promoted tandem one-pot oxidation-cannizzaro reaction of aryl methyl ketones
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(Chemical Equation Presented) Ytterbium triflate was shown to be an effective catalyst in promoting the synthesis of either isopropyl esters or free α-hydroxy-arylacetic acids from substituted aromatic glyoxals and aryl methyl ketones, respectively. The reaction to provide acids starting from differently substituted ketones was carried out by an environmentally friendly method using an aqueous medium as a solvent and giving the adducts in 78-99% yield without any further purification after the usual workup.
- Curini, Massimo,Epifano, Francesco,Genovese, Salvatore,Marcotullio, M. Carla,Rosati, Ornelio
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p. 1331 - 1333
(2007/10/03)
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- Dipeptide inhibitors of β-secretase
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Dipeptide derived inhibitors of the β-secretase enzyme are provided which are useful in the treatment of Alzheimer's disease and other diseases characterized by deposition of Aβ peptide in a mammal. The compounds of the invention provide useful methods of treatment by administration of these inhibitors to reduce Aβ peptide formation and in pharmaceutical compositions.
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- Nitrilases
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The invention relates to nitrilases and to nucleic acids encoding the nitrilases. In addition methods of designing new nitrilases and method of use thereof are also provided. The nitrilases have increased activity and stability at increased pH and temperature.
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- Nitrilases, nucleic acids encoding them and methods for making and using them
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The invention relates to nitrilases and to nucleic acids encoding the nitrilases. In addition methods of designing new nitrilases and method of use thereof are also provided. The nitrilases have increased activity and stability at increased pH and temperature.
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- Nitrilases
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The invention relates to nitrilases and to nucleic acids encoding the nitrilases. In addition methods of designing new nitrilases and method of use thereof are also provided. The nitrilases have increased activity and stability at increased pH and temperature.
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- An enzyme library approach to biocatalysis: Development of nitrilases for enantioselective production of carboxylic acid derivatives
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The discovery, from Nature, of a large and diverse set of nitrilases is reported. The utility of this nitrilase library for identifying enzymes that catalyze efficient production of valuable hydroxy carboxylic acid derivatives is demonstrated. Unprecedented enantioselectivity and substrate scope are highlighted for three newly discovered and distinct nitrilases. For example, a wide array of (R)-mandelic acid derivatives and analogues were produced with high rates, yields, and enantiomeric excesses (95-99% ee). We also have found nitrilases that provide direct access to (S)-phenyllactic acid and other aryllactic acid derivatives, again with high yields and enantioselectivities. Finally, different nitrilases have been discovered that catalyze enantiotopic hydrolysis of 3-hydroxyglutaronitrile to afford either enantiomer of 4-cyano-3-hydroxybutyric acid with high enantiomeric excesses (>95% ee). The first enzymes are reported that effect this transformation to furnish the (R)-4-cyano-3-hydroxybutyric acid which is a precursor to the blockbuster drug Lipitor. Copyright
- DeSantis, Grace,Zhu, Zuolin,Greenberg, William A.,Wong, Kelvin,Chaplin, Jenny,Hanson, Sarah R.,Farwell, Bob,Nicholson, Lawrence W.,Rand, Cynthia L.,Weiner, David P.,Robertson, Dan E.,Burk, Mark J.
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p. 9024 - 9025
(2007/10/03)
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- Selective ET(A) antagonists. 5. Discovery and structure-activity relationships of phenoxyphenylacetic acid derivatives
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The fifth paper in this series describes the culmination of our investigations into the development of a potent and selective ETA receptor antagonist for the treatment of diseases mediated by ET-1. Receptor site mapping of several ETA antagonists prepared previously identified a common cationic binding site which prompted synthesis of phenoxyphenylacetic acid derivative 13a, which showed good in vitro activity (IC50 59 nM, rat aortic ET(A)). Optimization of 13a led to the identification of 27b, which exhibited an IC50 of 4 nM. Although this did not translate into the expected in vivo potency, a compound of comparable in vitro activity, 27a (RPR118031A), showed a far better pharmacokinetic profile and in vivo potency (75 μmol/kg) and was duly proposed and accepted as a development candidate.
- Astles, Peter C.,Brown, Thomas J.,Halley, Frank,Handscombe, Caroline M.,Harris, Neil V.,Majid, Tahir N.,McCarthy, Clive,McLay, Lain M.,Morley, Andrew,Porter, Barry,Roach, Alan G.,Sargent, Carol,Smith, Christopher,Walsh, Roger J. A.
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p. 900 - 910
(2007/10/03)
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- 7-α-Amino-substituted acylamino-3-(1-carboxymethyltetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acids
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Certain 7-acylamido-3-(1-carboxy-loweralkyl-tetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acids and their salts and easily hydrolyzed esters of the 4-carboxyl group were synthesized and found to be potent antibacterial agents which exhibited good aqueous solubility. In a preferred embodiment the 7-substituent was 2'-aminomethylphenylacetamido.
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- 7-(D-α-Hydroxy-2-arylacetamido)-3-(2-carboxyalkyl-2,3-dihydro-s-triazolo-[4,3-b]pyridazin-3-on-6-ylthiomethyl)-3-cephem-4-carboxylic acids and derivatives
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7-(D-α-Hydroxy-2-arylacetamido)-3-(2-carboxyalkyl-2,3-dihydro-s-triazolo[4,3-b]pyridazin-3-on-6-ylthiomethyl)-3-cephem-4-carboxylic acids and derivatives containing blocking groups on the α-hydroxy group and their nontoxic, pharmaceutically acceptable salts are valuable as antibacterial agents and are particularly valuable as therapeutic agents in poultry and in animals, including man, in the treatment of infectious diseases caused by many Gram-positive and Gram-negative bacteria. A preferred compound is 7-(D-mandelamido)-3-(2-carboxyalkyl-2,3-dihydro-s-triazolo[4,3-b]pyridazin-3-on-6-ylthiomethyl)-3-cephem-4-carboxylic acid.
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- 7-(D-α-Hydroxy-2-arylacetamido)-3-(tetrazolo-[4,5-b]pyridazin-6-ylthiomethyl)-3-cephem-4-carboxylic acids
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7-(D-α-Hydroxy-2-arylacetamido)-3-(tetrazolo-[4,5-b]pyridazin-6-ylthiomethyl)-3-cephem-4-carboxylic acids and their nontoxic, pharmaceutically acceptable salts are valuable as antibacterial agents and are particularly valuable as therapeutic agents in poultry and animals, including man, in the treatment of infectious diseases caused by many Gram-positive and Gram-negative bacteria.
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