Patents Issued in January 6, 2004
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Patent number: 6673899Abstract: The present invention discloses DNAs comprising nucleotide sequences set forth as SEQ ID NO:1 or NO:3 encoding Na+-driven Cl—/HCO3— exchanger, proteins comprising amino acid sequences set forth as SEQ ID NO:2 or NO:4, and their homologous proteins comprising an amino acid sequence having deletion, substitution, addition or insertion amino acids, which proteins, when expressed in a cell, functions as Na+-driven Cl—/HCO3— exchanger, and cells in which the proteins exogenously expressed.Type: GrantFiled: August 3, 2001Date of Patent: January 6, 2004Assignees: JCR Pharmaceuticals Co., Ltd., Susumu SeinoInventors: Susumu Seino, Hideki Yano, Changzheng Wang
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Patent number: 6673900Abstract: The present invention relates to a novel human protein called phosphatonin, and isolated polynucleotides encoding this protein. Also provided are vectors, host cells, antibodies, and recombinant methods for producing this human protein. The invention further relates to diagnostic and therapeutic methods useful for diagnosing and treating disorders related to this novel human protein.Type: GrantFiled: April 25, 2002Date of Patent: January 6, 2004Assignee: University College LondonInventor: Peter Rowe
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Patent number: 6673901Abstract: A fibronectin type III (Fn3) polypeptide monobody, a nucleic acid molecule encoding said monobody, and a variegated nucleic acid library encoding said monobody, are provided by the invention. Also provided are methods of preparing a Fn3 polypeptide monobody, and kits to perform said methods. Further provided is a method of identifying the amino acid sequence of a polypeptide molecule capable of binding to a specific binding partner (SBP) so as to form a polypeptide:SSP complex, and a method of identifying the amino acid sequence of a polypeptide molecule capable of catalyzing a chemical reaction with a catalyzed rate constant, kcat, and an uncatalyzed rate constant, kuncat, such that the ratio of kcat/kuncat is greater than 10.Type: GrantFiled: June 12, 1998Date of Patent: January 6, 2004Assignee: Research Corporation Technologies, Inc.Inventor: Shohei Koide
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Patent number: 6673902Abstract: The invention discloses a direct interaction between D-type cyclins and a novel myb-like transcription factor, DMP1, which specifically interacts with cyclin D2. The present invention also provides evidence that D-type cyclins regulate gene expression in an RB-independent manner. Also included is DMP1, the transcription factor composed of a central DNA-binding domain containing three atypical myb repeats flanked by highly acidic segments located at its amino- and carboxyterminal ends. The invention includes amino acid sequences coding for DMP1, and DNA and RNA nucleotide sequences that encode the amino acid sequences. A use of DMP1 as a transcription factor is disclosed due to its specificity in binding to oligonucleotides containing the nonamer consensus sequence CCCG(G/T)ATGT. In this aspect of the invention, DMP1 when transfected into mammalian cells, activates the transcription of a reporter gene driven by a minimal promoter containing concatamerized DMP1 binding sites.Type: GrantFiled: June 27, 2001Date of Patent: January 6, 2004Assignee: St. Jude Children's Research HospitalInventors: Charles J. Sherr, Hiroshi Hirai, Sara M. Bodner, Kazushi Inoue
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Patent number: 6673903Abstract: A novel mammalian cell cycle protein, p55CDC, DNA sequences encoding p55CDC, and a method for producing the protein are described. Also described are methods for detecting p55CDC and methods for modulating cell division by compounds which control the level or activity of p55CDC or p55CDC-associated protein complexes.Type: GrantFiled: April 30, 2001Date of Patent: January 6, 2004Assignees: Amgen Inc., The Regents of the University of CaliforniaInventor: Jasminder Weinstein
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Patent number: 6673904Abstract: The invention provides novel polynucleotides and polypeptides encoded by such polynucleotides and mutants or variants thereof that correspond to a novel human and mouse secreted stem cell growth factor-like polypeptide. These polynucleotides comprise nucleic acid sequences isolated from cDNA libraries prepared from mouse bone marrow and human fetal liver spleen, ovary, adult brain, lung tumor, spinal cord, cervix, ovary, endothelial cells, umbilical cord, placental, lymphocyte, lung fibroblast, fetal brain, and testis. Other aspects of the invention include vectors containing processes for producing novel human secreted stem cell growth factor-like polypeptides, and antibodies specific for such polypeptides.Type: GrantFiled: July 24, 2001Date of Patent: January 6, 2004Assignees: Kirin Beer Kabushiki Kaisha, Hyseq, Inc.Inventors: Mitsuo Nishikawa, Ivan Labat, Radoje T. Drmanac, Y. Tom Tang, Cheng-Chi Chao, Nancy Mize, John Childs
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Patent number: 6673905Abstract: A method is provided for covalently linking carbohydrates, proteins, nucleic acids, and other biomolecules under neutral conditions, using a Diels-Alder cycloaddition reaction. In an example, activated carbon-carbon double bonds were attached to free amino sites of a carrier protein, and a conjugated diene was attached to a carbohydrate hapten. Spontaneous coupling of the carbohydrate and the protein components under very mild conditions provided glycoconjugates containing up to 37 carbohydrate hapten units per carrier protein molecule. The method is also applicable to the immobilization of biomolecules on gel or solid supports. The conjugated products are useful as immunogens and as analytical and diagnostic reagents.Type: GrantFiled: August 1, 2001Date of Patent: January 6, 2004Assignee: The United States of America as represented by the Department of Health and Human ServicesInventor: Vince Pozsgay
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Patent number: 6673906Abstract: The present invention relates to the &bgr; modification of the dye of the formula IType: GrantFiled: January 11, 1996Date of Patent: January 6, 2004Assignee: DyStar Textifarben GmbH & Co. Deutschland KGInventor: Ulrich Bühler
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Patent number: 6673907Abstract: The present invention discloses new and novel substituted anthracyclines with modified alkyl-aromatic ring substitutions on the C-3′ of the sugar moiety or modified or unmodified alkyl-aromatic ring substitutions at the C-4′ of the sugar moiety. It also discloses novel methods for the preparation of sugar substrates and methods for the preparation of anthracycline antibiotics. These anthracycline analogs show high cytotoxicity in vitro against several tumor cell lines.Type: GrantFiled: September 19, 2001Date of Patent: January 6, 2004Assignee: Houston Pharmaceuticals, Inc.Inventors: Waldemar Priebe, Izabella Fokt, Teresa Przewloka, Marta Krawczyk, Piotr Skibicki, Grzegorz Grynkiewicz, Roman Perez-Soler
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Patent number: 6673908Abstract: The present disclosure describes the use of genetic variance information for genes involved in inflammatory or immunologic disease, disorder, or dysfunction. The variance information is indicative of the expected response of a patient to a method of treatment. Methods of determining relevant variance information and additional methods of using such variance information are also described.Type: GrantFiled: October 1, 2001Date of Patent: January 6, 2004Assignee: Nuvelo, Inc.Inventor: Vincent P. Stanton, Jr.
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Oligonucleotides for dysferlin, a gene mutated in distal myopathy and limb girdle muscular dystrophy
Patent number: 6673909Abstract: A novel gene and the protein encoded therein, i.e., dysferlin, are disclosed. This gene and its expression products are associated with muscular dystrophy, e.g., Miyoshi myopathy and limb girdle musclular dystrophy 2B.Type: GrantFiled: August 25, 1999Date of Patent: January 6, 2004Assignee: The General Hospital CorporationInventors: Robert H. Brown, Jr., Jing Liu, Masashi Aoki, Meng F. Ho, Chie Matsuda-Asada -
Patent number: 6673910Abstract: The invention provides isolated polypeptide and nucleic acid sequences derived from Moracella catarrhalis that are useful in diagnosis and therapy of pathological conditions; antibodies against the polypeptides; and methods for the production of the polypeptides. The invention also provides methods for the detection, prevention and treatment of pathological conditions resulting from bacterial infection.Type: GrantFiled: April 4, 2000Date of Patent: January 6, 2004Assignee: Genome Therapeutics CorporationInventor: Gary L. Breton
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Patent number: 6673911Abstract: A human oncogene and its expression products can be used as diagnostic, prognostic, and therapeutic tools for neoplastic disorders. Nucleotide sequences of the gene can also be used to identify a p34.3 region of a human chromosome 1.Type: GrantFiled: April 11, 2000Date of Patent: January 6, 2004Assignee: Chiron CorporationInventor: Filippo M. Randazzo
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Patent number: 6673912Abstract: 2′-O-Modified ribosyl nucleosides and modified oligomeric compounds containing such nucleosidic monomers are disclosed. Oligomeric compounds are disclosed that have increased binding affinity as shown by molecular modeling experiments. The 2′-O-modified nucleosides of the invention include ring structures that position the sugar moiety of the nucleosides preferentially in 3′ endo geometries.Type: GrantFiled: April 11, 2002Date of Patent: January 6, 2004Assignee: ISIS Pharmaceuticals, Inc.Inventors: Muthiah Manoharan, Phillip Dan Cook
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Patent number: 6673913Abstract: The object of the present invention is to provide a novel protein having a kinase activity and a gene encoding said protein. According to the present invention, there is provided a GANP protein which is represented by the amino acid sequence shown in SEQ ID No. 1 or No. 3 of the sequence listing, and is involved in the signal conversion of abnormal B cell differentiation in an autoimmune state, and has a kinase activity, and a polynucleotide which encodes the protein.Type: GrantFiled: December 5, 2001Date of Patent: January 6, 2004Assignee: Kumamoto Technology & Industry FoundationInventors: Nobuo Sakaguchi, Kazuhiko Kuwahara
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Patent number: 6673914Abstract: The present invention describes a novel tumor marker antigen encoded by a gene designated as HOJ-1 (SEQ ID NO:1). In specific embodiment, the nucleic acid sequences disclosed herein are for used in the diagnosis and prognosis of cancer. Also provided are related protein and antibody compositions and various methods of use thereof, including methods for cancer diagnosis and treatment.Type: GrantFiled: January 21, 1999Date of Patent: January 6, 2004Assignee: John Wayne Cancer InstituteInventor: David S. B. Hoon
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Patent number: 6673915Abstract: Substantially pure nucleic acid molecules encoding the monocyte chemotactic proteins MCP-4 and MCP-5. These molecules and the polypeptides they encode are useful in treating diseases or conditions that: (1) are exacerbated by a local immune response, (2) would benefit from a local immune response, or (3) are caused by infectious agents that gain entry to mammalian cells via the chemokine receptors bound by MCP-4 or MCP-5.Type: GrantFiled: April 7, 2000Date of Patent: January 6, 2004Assignee: General Hospital CorporationInventors: Andrew D. Luster, Eduardo A. Garcia-Zepeda, Mindy N. Sarafi
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Patent number: 6673916Abstract: The present invention relates to parasitic helminth PLA2 proteins; to parasitic helminth PLA2 nucleic acid molecules, including those that encode such proteins; to antibodies raised against such proteins; and to compounds that inhibit parasitic helminth phospholipase A2 activity. The present invention also includes methods to obtain such proteins, nucleic acid molecules, antibodies, and inhibitors. Also included in the present invention are therapeutic compositions comprising such proteins, nucleic acid molecules, antibodies, and/or inhibitors as well as the use of such therapeutic compositions to protect animals from diseases caused by parasitic helminths.Type: GrantFiled: September 7, 1999Date of Patent: January 6, 2004Assignees: Colorado State University Research Foundation, Heska CorporationInventors: Robert B. Grieve, Glenn R. Frank, Nancy Wisnewski
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Patent number: 6673917Abstract: The present invention feature antisense IAP nucleic acids and other negative regulators of the IAP anti-apoptotic pathway, and methods for using them to enhance apoptosis.Type: GrantFiled: September 28, 2000Date of Patent: January 6, 2004Assignee: University of OttawaInventors: Robert G. Korneluk, Eric LaCasse, Stephen Baird, Martin Holcik, Sean Young
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Patent number: 6673918Abstract: Method for one-pot deprotection of RNA molecules.Type: GrantFiled: September 21, 2001Date of Patent: January 6, 2004Assignee: Sirna Therapeutics, Inc.Inventors: Laurent Bellon, Christopher T. Workman
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Patent number: 6673919Abstract: This invention relates to a chemically modified hyaluronic acid and salts thereof, which are obtained by O-acylating, alkoxylating or crosslinking a complex consisting of hyaluronic acid or a salt thereof and a cationic compound in a nonaqueous solvent, and a process for the production thereof. The nonaqueous solvent used in the invention is preferably one or more solvents selected from the group consisting of chloroform, toluene, methylene chloride and heptane.Type: GrantFiled: March 28, 2002Date of Patent: January 6, 2004Assignees: Chisso CororationInventors: Nobuhiko Yui, Tooru Ooya, Ikuo Sato
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Patent number: 6673920Abstract: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst diols of the general formula (I) where X is branched or unbranched alkylene selected from the group consisting of where R1 to R6 are independently hydrogen or C1- to C4-alkyl; or branched or unbranched cyclic alkylene of 3 to 14 carbon atoms including 3 to 12 ring carbon atoms, their monoalkenyl ethers, their dialkenyl ethers or mixtures thereof.Type: GrantFiled: June 19, 2002Date of Patent: January 6, 2004Assignee: BASF AktiengesellschaftInventors: Thomas Preiss, Arnd Böttcher, Rolf Pinkos, Rudolf Erich Lorenz
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Patent number: 6673921Abstract: A process for the preparation of the compound (I) or an acid addition salt thereof which comprises reacting a compound of formula (II), wherein R is an optionally substituted benzyl group under concomitant reduction and hydrogenolysis conditions, followed, if required, by isolation of the compound as an acid addition salt thereof.Type: GrantFiled: February 19, 2003Date of Patent: January 6, 2004Assignee: SmithKline Beecham CorporationInventors: David Colclough, Anne Hodgson
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Patent number: 6673922Abstract: A high yield process for preparing 4,6-dialkoxy-1,3,5-triazine-2-halide by reacting a cyanuric halide with an alcohol compound such as methanol in the presence of an alkali such as sodium hydrogencarbonate, wherein the water content present in the reaction system at the beginning of the reaction is controlled to not more than 0.5 mol based on 1 mol of the cyanuric halide or the water content present in the reaction system during the period of the reaction is controlled to not more than 2.5 mol based on 1 mol of the cyanuric halide.Type: GrantFiled: March 8, 2002Date of Patent: January 6, 2004Assignee: Tokuyama CorporationInventors: Masako Saijo, Naoki Hirano
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Patent number: 6673923Abstract: The present invention provides pyrazole and pyrazolone derivatives. Preferred compounds of the invention are useful as RNA polymerase inhibitors. Further preferred compounds of the invention are useful as antimicrobial agents.Type: GrantFiled: May 2, 2001Date of Patent: January 6, 2004Assignee: Tularik Inc.Inventors: Leping Li, Xiaoqi Chen, Serena T. Cutler
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Patent number: 6673924Abstract: The present invention includes a precursor compound pertaining to a 1,2,4-Triazolo[4,3-a][1,3,5] Triazine compound, particularly a 1,2,4-Triazolo[4,3-a][1,3,5] Triazine-3,5,7-Triamine, and novel fused ring structures such as triazolyl-tetrazinyl-aminotriazine compounds, and complexes and salts thereof, and other such chemical structures.Type: GrantFiled: July 10, 2002Date of Patent: January 6, 2004Assignee: The United States of America as represented by the Secretary of the NavyInventors: William M. Koppes, Michael E. Sitzmann
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Patent number: 6673925Abstract: Method of producing thiobarbituric acid derivatives of formula I wherein R1 is SH, S−M+ or CH3S—, and M+ is an alkali metal ion, by hydrogenolysis of a compound of formula II wherein R2 is chlorine or CH3O—, with a) a hydrogenolysis agent in the presence of an inert solvent and by a direct reaction of the hydrogenolysis product with an alkali metal methylate in methanol, or b) with a hydrogenolysis agent in the presence of an inert solvent and in the presence of a methylation reagent, and subsequently with an alkali metal methylate in methanol, as well as the use of these compound of formula I in the production of 7-[(4,6-dimethoxy-pyrimidin-2-yl)thio]-3-methylphthalide.Type: GrantFiled: August 20, 2001Date of Patent: January 6, 2004Assignee: Syngenta Crop Protection, Inc.Inventors: Bernhard Urwyler, Thomas Rapold, Marco Passafaro
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Patent number: 6673926Abstract: The present invention is directed to a process for preparing 3S-3-amino-3-aryl propionic acid and derivatives thereof.Type: GrantFiled: October 29, 2001Date of Patent: January 6, 2004Assignee: Ortho-McNeil Pharmaceutical, Inc.Inventors: Lorraine Scott, Frank John Villani, Jr., Donald G. Walker
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Patent number: 6673927Abstract: The present invention is directed to compounds of the wherein the variables are as defined in the specification. The compounds are useful for inhibiting farnesyl transferase and for the treatment of tumors and restenosis.Type: GrantFiled: November 20, 1996Date of Patent: January 6, 2004Assignee: Societe de Conseils de Recherches et d'Applications Scientifiques, S.A.S.Inventors: Thomas D. Gordon, Barry A. Morgan
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Patent number: 6673928Abstract: Compounds represented by formula (IV): are provided, as well as methods for synthesizing the compounds, wherein variable R21 to R28 are as defined herein.Type: GrantFiled: July 23, 2002Date of Patent: January 6, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiki Taguchi
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Patent number: 6673929Abstract: This invention relates to improved processes for preparing compounds of Formula II, and compounds of Formula III, wherein R1, R2, R3 and Prt are defined as set forth in the specification.Type: GrantFiled: October 30, 2002Date of Patent: January 6, 2004Assignee: Pfizer Inc.Inventors: Frank R. Busch, Charles K. Chiu, Clifford N. Meltz, Ronald J. Post, Peter R. Rose
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Patent number: 6673930Abstract: The present invention relates to an efficient process for the preparation of 5-(substituted)-10-methoxy-2,2,4-trimethyl-2,5-dihydro-1H-chromeno[3,4-f]quinolines.Type: GrantFiled: November 7, 2002Date of Patent: January 6, 2004Inventors: Yi-Yin Ku, Timothy A. Grieme, Padam N. Sharma, Prasad S. Raje, Howard E. Morton, Mike A. Fitzgerald
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Patent number: 6673931Abstract: Piperidine derivatives, their manufacture and use as medicaments is described. The compounds are useful for treating diseases associated with restenosis, glaucoma, cardiac infarct, high blood pressure and end organ damage, e.g. cardiac insufficiency and kidney insufficiency.Type: GrantFiled: December 18, 2001Date of Patent: January 6, 2004Assignee: Hoffman-La Roche Inc.Inventors: Volker Breu, Hans-Peter Märki, Eric Vieira, Wolfgang Wostl
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Patent number: 6673932Abstract: Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): wherein R is hydrogen, hydroxy, nitro, amino, halogen, C1 to C5 alkyl or haloalkyl, C1 to C5 alkoxy or cyclic alkoxy, C1 to C5 hydroxyalkyl and C1 to C5 hydroxyalkoxy; Ar is an aromatic group; and y=1 to 3.Type: GrantFiled: January 18, 2002Date of Patent: January 6, 2004Assignee: The Procter & Gamble CompanyInventors: Mu-Ill Lim, Yuh-Guo Pan
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Patent number: 6673933Abstract: This invention relates to novel compounds of formula: wherein R1 is H or C1-C6alkyl and the C1-C6alkyl moiety is straight or branched; R2 and R3 are each independently C1-C6alkyl and the C1-C6alkyl moiety is straight or branched; or stereoisomers or pharmaceutically acceptable acid addition salt thereof.Type: GrantFiled: March 22, 2002Date of Patent: January 6, 2004Assignee: Aventis Pharmaceutical Inc.Inventor: Timothy A. Ayers
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Patent number: 6673934Abstract: Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): wherein R is hydrogen, hydroxy, nitro, amino, halogen, C1 to C5 alkyl or haloalkyl, C1 to C5 alkoxy or cyclic alkoxy, C1 to C5 hydroxyalkyl and C1 to C5 hydroxyalkoxy; Ar is an aromatic group, preferably an aromatic group selected from a furanyl, thienyl, pyridinyl, phenyl, 2,3-dihydro-benzo[1,4]dioxin-5 or -6-yl or benzo[1,3]dioxol-4 or -5-yl group; and y=1 to 3.Type: GrantFiled: January 18, 2002Date of Patent: January 6, 2004Assignee: The Procter & Gamble CompanyInventors: Mu-Ill Lim, Yuh-Guo Pan
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Patent number: 6673935Abstract: This invention encompasses the Form V polymorph of Compound A of structural formula: which is useful in the treatment of cyclooxygenase-2 mediated diseases. The invention encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising the Form V polymorph of Compound A. The invention also encompasses a process for synthesizing the Form V polymorph of Compound A.Type: GrantFiled: January 14, 2003Date of Patent: January 6, 2004Assignee: Merck & Co., Inc.Inventors: Louis S. Crocker, Ian W. Davies, Richard G. Osifchin, Andrew Kotliar
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Patent number: 6673936Abstract: The present invention provides processes for purifying 6-methoxy omeprazole, products using such processes, pharmaceutical formulations using such products, and methods of using such products for gastric acid inhibition.Type: GrantFiled: April 20, 2001Date of Patent: January 6, 2004Inventors: Linda B. Whittall, Grayson Walker Stowell, Robert R. Whittle
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Patent number: 6673937Abstract: Oxidative cyclization of bis-naphthyl ethers allows concise total syntheses of palmarumycin CP1 and deoxypreussomerin A in 8-9 steps and 15-35% overall yield from 5-hydroxy-8-methoxy-1-tetralone. A small library of palmarumycin analogs was created. Biological evaluation of these naphthoquinone spiroketals against MCF-7 and MDA-MB-231 human breast cancer cells revealed several low-micromolar growth inhibitors. A number of the analogs inhibit the thioredoxin—thioredoxin reductase system.Type: GrantFiled: July 19, 2001Date of Patent: January 6, 2004Assignee: The University of PittsburghInventors: John S. Lazo, Peter Wipf, Billy W. Day
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Patent number: 6673938Abstract: Compounds of formula (I), in which the substituents are as defined in claim 1 and the agrochemically tolerated salts M+ and all stereoisomers and tautomers of the compounds of formula (I) are suitable for use as herbicides.Type: GrantFiled: January 7, 2003Date of Patent: January 6, 2004Assignee: Syngenta Participations AGInventors: Andrew Edmunds, Christoph Lüthy, Karl Seckinger, Alain De Mesmaeker, Walter Kunz, Jürgen Schaetzer
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Patent number: 6673939Abstract: The present invention relates to a process for the preparation of a compound of formula (I) wherein R represents hydrogen, C1-10alkyl, haloC1-10alkyl or aryl; which are useful intermediates in the preparation of morpholine derivatives of formula (A). Compounds of formula (A) are useful as therapeutic agents.Type: GrantFiled: February 5, 2003Date of Patent: January 6, 2004Assignee: Merck Sharp & Dohme Ltd.Inventor: Cameron John Cowden
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Patent number: 6673940Abstract: The design, synthesis, and use of cyclic compounds, including cyclic polyamides, is described. Such compounds comprise at least two polymer portions, one of which comprises at least three molecular units, and the other comprises at least four molecular units. At least one molecular unit of such a compound is a hydrogen bond donor or acceptor. The polymer portions are covalently linked to form a cycle. These compounds are capable of targeting specific nucleotide sequences in double-stranded nucleic acids, particularly double-stranded DNA. Accordingly, such compounds can be used to modulate, e.g., increase or decrease, the expression of one or more genes in vitro or in vivo.Type: GrantFiled: January 6, 2000Date of Patent: January 6, 2004Assignee: California Institute of TechnologyInventors: Peter B. Dervan, Eldon E. Baird
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Patent number: 6673941Abstract: Compounds of formula (I) and formula (II) are disclosed which are useful in the treatment bacterial infections: wherein: R1 is C1-4alkyl, Ar or 2-thienyl or 3-thienyl; R2 is C1-4alkyl or Ar; and n is 0-3; or a pharmaceutically acceptable salt thereof.Type: GrantFiled: January 9, 2003Date of Patent: January 6, 2004Assignee: Affinium Pharmaceuticals, Inc.Inventors: Dirk Heerding, Kenneth A. Newlander
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Patent number: 6673942Abstract: The present invention relates to a process for the resolution of DL-racemic mixtures of compounds which crystalize in the form of a conglumerate. Both, the D and L-enantiomers are obtained according to the invention in a industrially feasable process by adding chiral enantioselective polymers to the supersaturated solution of the racemat to inhibit crystalization of one enantiomer. Next a DL-racemic mixture of said compound is suspended in about twice the amount of the crystallized enantiomer. Consequently, the opposite enantiomer could be recovered by said suspension by physical separation.Type: GrantFiled: July 23, 2002Date of Patent: January 6, 2004Assignees: Degussa AG, Yeda Research and Development Co., Ltd.Inventors: Matthias Kottenhahn, Guenter Knaup, Karlheinz Drauz, Meir Lahav, David Zbaida
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Patent number: 6673943Abstract: The present invention provides low molecular weight fluorescent labeling complexes with large wavelength shifts between absorption of one dye in the complex and emission from another dye in the complex. These complexes can be used, for example, for multiparameter fluorescence cell analysis using a single excitation wavelength. The low molecular weight of the complex permits materials labeled with the complex to penetrate cell structures for use as probes. The labeling complexes are synthesized by covalently attaching through linkers at least one cyanine fluorochrome to another low molecular weight fluorochrome to form energy donor-acceptor complexes. Resonance energy transfer from an excited donor to fluorescent acceptor provides wavelength shifts up to 300 nm. The fluorescent labeling complexes preferably contain reactive groups for the labeling of functional groups on target compounds, such as derivatized oxy and deoxy polynucleic acids, antibodies, enzymes, proteins and other materials.Type: GrantFiled: November 20, 2002Date of Patent: January 6, 2004Assignee: Carnegie Mellon UniversityInventors: Alan S. Waggoner, Swati R. Mujumdar, Ratnakar B. Mujumdar
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Patent number: 6673944Abstract: The invention provides a method for the direct preparation of pure warfarin sodium from warfarin acid. The reaction is conducted in a polar organic solvent, preferably ethanol, using a volatilizable base, preferably sodium bicarbonate or sodium carbonate, at low temperature. Drying the final product is accomplished at low temperature to avoid decomposition of the final warfarin sodium product.Type: GrantFiled: February 28, 2001Date of Patent: January 6, 2004Assignee: Taro Pharmaceutical Industries, Ltd.Inventors: Michel Ashkar, Sorin Bercovici, Robert Graff
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Patent number: 6673945Abstract: This invention provides a method of separating tocopherols by using a weakly basic polyvinyl pyridine resin. The resin has the capacity to selectively bind tocopherols, allowing other impurities typically found in a tocopherol production plant stream to separate from the tocopherols. After loading a tocopherol-containing mixture onto a separatory column packed with the resin, the loaded column is eluted with a solvent followed by an alcohol. The eluate is collected in fractions, and the tocopherol-containing fractions are combined and concentrated to yield a purified tocopherol composition. It has been found that the present invention produces highly purified tocopherol compositions (90+%), and is particularly useful for preparing highly purified tocopherol compositions, specifically enriched in &agr;-tocopherol.Type: GrantFiled: November 1, 2002Date of Patent: January 6, 2004Assignee: Archer-Daniels Midland CompanyInventors: Thomas P. Binder, Ahmad K. Hilaly
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Patent number: 6673946Abstract: Disclosed is a hydrogenation process for the preparation of 3-methyl-tetrahydrofuran from 2-methyl-gamma-butyrolactone. The above process enables the production of the objective highly pure 3-methyl-tetrahydrofuran free from alcohol in high efficiency and high conversion through a simple production step.Type: GrantFiled: July 9, 2002Date of Patent: January 6, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Leo Ernest Manzer
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Patent number: 6673947Abstract: The present invention provides a process for synthesizing 3-fluoroalkoxymethyl-3-alkyloxetanes suitable as intermediates for preparing various fluorine-containing functional materials, the process comprising using 3-alkyloxetane methanol as a starting compound and adding the compound to a fluoroolefin in the presence of an alkali.Type: GrantFiled: September 23, 2002Date of Patent: January 6, 2004Assignee: Daikin Industries, Inc.Inventor: Akinori Yamamoto
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Patent number: 6673948Abstract: A process for preparing compounds of formula (I) comprising radical addition of RfI to 3-(allyloxy)methyl-3-alkyloxetane (1) wherein R is C1-3 alkyl and Rf is C1-18 linear or branched fluoroalkyl. The compounds of formula (I) are useful as intermediates for preparing various fluorine-containing functional materials.Type: GrantFiled: September 23, 2002Date of Patent: January 6, 2004Assignee: Daikin Industries, Ltd.Inventors: Tetsuya Masutani, Akinori Yamamoto