Polycarboxylic Patents (Class 562/568)
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Patent number: 10227285Abstract: The present disclosure provides a process for the preparation of compounds of formula (III), compounds of formula (V), and corresponding salts of formula (IV). The compounds made by the methods and processes of the invention are particularly useful for administration in humans and animals.Type: GrantFiled: November 16, 2015Date of Patent: March 12, 2019Assignee: GEMPHIRE THERAPEUTICS INC.Inventors: Carmen Daniela Oniciu, Otto Joseph Geoffroy
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Patent number: 9290442Abstract: A process for synthesizing 4-amino-2,4-dioxobutanoic acid involves reacting diethyl oxalate with an alkoxide in ethanol to form a reaction mixture, and afterward adding ethyl cyanoacetate to the reaction mixture and allowing a reaction to proceed under conditions suitable to form a first reaction product of the formula diethyl 2-cyano-3-hydroxy-butenedioate, and then isolating the diethyl 2-cyano-3-hydroxy-butenedioate, and afterward reacting the diethyl-2-cyano-3-hydroxy-butenedioate with an aqueous hydroxide under conditions suitable to form 4-amino-2,4-dioxobutanoic acid.Type: GrantFiled: September 15, 2014Date of Patent: March 22, 2016Assignees: Los Alamos National Security, LLC, New Mexico Highlands UniversityInventors: Pat J. Unkefer, Rodolfo A. Martinez, David R. Glass
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Publication number: 20150065751Abstract: A first process for synthesizing 4-amino-2,4-dioxobutanoate involves reacting a dialkyl oxalate with an alkoxide in ethanol to form a reaction mixture, and afterward adding an alkyl cyanoacetate to the reaction mixture and allowing a reaction to proceed under conditions suitable to form a first reaction product of the formula diethyl 2-cyano-3-hydroxy-butenedioate, and then isolating the diethyl 2-cyano-3-hydroxy-butenedioate, and afterward reacting the diethyl-2-cyano-3-hydroxy-butenedioate with an aqueous hydroxide under conditions suitable to form 4-amino-2,4-dioxobutanoate.Type: ApplicationFiled: September 17, 2014Publication date: March 5, 2015Applicants: New Mexico Highlands University, Los Alamos National Security, LLCInventors: Pat J. Unkefer, Rodolfo A. Martinez, David R. Glass
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Publication number: 20150011778Abstract: This disclosure teaches the novel use of trifluoroacetamide for N-terminal protection. The disclosure also teaches novel compositions and chemical structures associated therewith. These methods and compositions are useful for site-specific methylation of peptide backbone amides, performed, for example, to modulate the pharmacokinetic properties of peptide drugs.Type: ApplicationFiled: February 19, 2013Publication date: January 8, 2015Inventors: Scott Lokey, Rushia Turner
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Patent number: 8801962Abstract: A salt of an acidic chelating agent including an amine functionality, the salt comprising at least 0.25 mole of an alkaline earth metal per mole of acidic protons provided by the chelating agent; wherein the acidic chelating agent is not ethylene diamine disuccinic acid.Type: GrantFiled: January 21, 2010Date of Patent: August 12, 2014Assignee: Innospec LimitedInventors: Matthew Robert Giles, Nicholas John Dixon
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Publication number: 20140154183Abstract: What is described are the compounds and the synthesis of [F-18]-labelled L-glutamic acid, [F-18]-labelled L-glutamate, their derivatives of the formula (I) and their use.Type: ApplicationFiled: February 5, 2014Publication date: June 5, 2014Inventors: Matthias FRIEBE, Heribert SCHMITT-WILLICH, Matthias BERNDT, Ludger DINKELBORG, Norman KOGLIN, Keith GRAHAM
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Publication number: 20130225663Abstract: The invention provides formulations that contain an immunogenic or immunostimulatory cargo, delivery moiety and/or lipid, and a lipid that functions to reduce or prevent induction in a subject of an immune response which would otherwise occur when the immunogenic or immunostimulatory cargo, delivery moiety and/or lipid is administered to a subject as a component of an appropriate control formulation lacking the immune response reducing lipid. Specific immune response reducing lipids and uses thereof are further provided.Type: ApplicationFiled: August 27, 2012Publication date: August 29, 2013Applicant: Dicerna Pharmaceuticals, Inc.Inventor: Bob D. Brown
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Publication number: 20130158021Abstract: Described herein are compounds and compositions characterized, in certain embodiments, by conjugation of various groups, such as lipophilic groups, to an amino or amide group of an amino acid, a linear or cyclic peptide, a linear or cyclic polypeptide, or structural isomer thereof, to provide compounds of the present invention, collectively referred to herein as “APPLs”. Such APPLs are deemed useful for a variety of applications, such as, for example, improved nucleotide delivery. Exemplary APPLs include, but are not limited to, compounds of Formula (I), (II), (III), (IV), (V), and (VI), and salts thereof, as described herein: wherein m, n, p, R?, R1, R2, R3, R4, R5, R8, Z, W, Y, and Z are as defined herein.Type: ApplicationFiled: October 26, 2012Publication date: June 20, 2013Applicant: Massachusetts Institute of TechnologyInventor: Massachusetts Institute of Technology
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Publication number: 20130052585Abstract: Provided are novel symmetrical and asymmetrical bifunctional photodecomposable bases (PDBs) with dicarboxylate anion groups that show increased imaging performance. Also provided are photoresist compositions prepared with the bifunctional dicarboxylated PDBs and lithography methods that use the photoresist compositions of the present invention.Type: ApplicationFiled: August 26, 2011Publication date: February 28, 2013Applicants: JSR CORPORATION, INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ramakrishnan Ayothi, William D. Hinsberg, Sally A. Swanson, Gregory M. Wallraff
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Publication number: 20120183614Abstract: Provided are a polyphenol compound absorption promoter which is widely applicable to foods and drinks over a wide range, and a method for producing a food, drink or food material containing a polyphenol compound. The polyphenol compound absorption promoter comprises, as the active ingredient, at least one member selected from the group consisting of serine, aspartic acid, malic acid, capric acid, lauric acid, grapefruit juice and Camellia sinensis (L.) O. Kuntze extract. The method for producing a food, drink or food material containing a polyphenol compound comprises: adding at least one member selected from the group consisting of serine, aspartic acid, malic acid, capric acid, lauric acid, grapefruit juice and Camellia sinensis (L.) O.Type: ApplicationFiled: October 6, 2009Publication date: July 19, 2012Inventors: Koji Yanae, Shinpei Kawakami, Masatoshi Kato, Yuko Setoguchi, Masanori Sugitani
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Patent number: 8222449Abstract: Compounds having the formulas below. The values n and x are independently selected positive integers.Type: GrantFiled: December 8, 2010Date of Patent: July 17, 2012Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Michael Stewart, Kimihiro Susumu, Dorothy Farrell, Hedi M. Mattoussi
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Patent number: 8183409Abstract: A new method for preparing salts of metal cations and organic acids, especially divalent salts of alkaline earth metal ions from group II of the periodic system and carboxylic acids. The method comprising the use of a high temperature (about 90° or more) and, optionally. high pressure, in order to obtain a higher yield, purity and faster reaction speed than obtained with known synthesis methods. In particular, the present invention relates to the production of strontium salts of carboxylic acids. Novel strontium salts are also provided by the present method.Type: GrantFiled: August 3, 2009Date of Patent: May 22, 2012Assignee: Osteologix A/SInventors: Stephan Christgau, Jens E. T. Andersen
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Publication number: 20120068113Abstract: A salt of an acidic chelating agent including an amine functionality, the salt comprising at least 0.25 mole of an alkaline earth metal per mole of acidic protons provided by the chelating agent; wherein the acidic chelating agent is not ethylene diamine disuccinic acid.Type: ApplicationFiled: January 21, 2010Publication date: March 22, 2012Applicant: Innospec LimitedInventors: Matthew Robert Giles, Nicholas John Dixon
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Publication number: 20110207634Abstract: The present invention relates to a process for preparing ether carboxylates.Type: ApplicationFiled: February 18, 2011Publication date: August 25, 2011Applicant: BASF SEInventors: Robert Baumann, Markus Christian Biel, Andreas Deckers, Alfred Oftring, Frank Rittig, Wolfgang Staffel
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Publication number: 20110165076Abstract: What is described are the compounds and the synthesis of [F-18]-labelled L-glutamic acid, [F-18]-labelled L-glutamate, their derivatives of the formula (I) and their use.Type: ApplicationFiled: May 14, 2009Publication date: July 7, 2011Applicant: BAYER SCHERING PHARMA AKTIENGESELLSCHAFTInventors: Ludger Dinkelborg, Mathias Berndt, Matthias Friebe, Heribert Schmitt-Willich, Detlev Sülzle, Norman Koglin
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Publication number: 20110137079Abstract: A compound having the formula below. The values n and m are independently selected positive integers.Type: ApplicationFiled: December 8, 2010Publication date: June 9, 2011Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Michael Stewart, Kimihiro Susumu, Dorothy Farrell, Hedi M. Mattoussi
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Publication number: 20110129583Abstract: An acylamino acid compound is described which can be used in food preparations to generate a savory tingling sensation without burning effect.Type: ApplicationFiled: May 18, 2009Publication date: June 2, 2011Applicant: NESTEC S.A.Inventors: Celine Riera, Candice Menozzi, Fabien Robert, Johannes Le Coutre
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Publication number: 20110123976Abstract: A method is provided for the parallel identification of one or more metabolite species within a biological sample. The method comprises analyzing the sample to produce a spectrum containing individual spectral peaks representative of the one or more metabolite species contained within the sample; subjecting each of the individual spectral peaks to a statistical pattern recognition analysis to identify the one or more metabolite species contained within the sample; and identifying the one or more metabolite species contained within the sample by analyzing the individual spectral peaks of the spectra.Type: ApplicationFiled: October 13, 2010Publication date: May 26, 2011Applicant: Purdue Research FoundationInventors: M. Daniel Raftery, Vincent Asiago
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Publication number: 20100217011Abstract: The compounds and the synthesis of [F-18]-labeled L-glutamic acid, [F-18]-labeled L-glutamate, their derivatives as set forth in formula (I) and their uses are described.Type: ApplicationFiled: October 30, 2007Publication date: August 26, 2010Applicants: BAYER SCHERING PHARMA AKTIENGESELLSCHAFT, INEOS RAS, IHB RASInventors: Ludger Dinkelborg, Matthias Friebe, Nikolaevna Raisa Krasikowa, Yuri Belokon, Fedorovna Olga Kuznetsova, Keith Graham, Lutz Lehmann, Mathias Berndt
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Patent number: 7777075Abstract: The invention provides a fluoroethercarboxylic acid which is represented by the general formula (I): Rf1OCHFCF2ORf2COOM??(I) wherein Rf1 represents a partially or fully fluorinated alkyl group, which may optionally be interrupted with one or more oxygen atoms, Rf2 represents a partially or fully fluorinated alkylene group, which may optionally be interrupted with one or more oxygen atoms, and M represents a monovalent alkali metal, NH4 or H. The fluoroethercarboxylic acid can be suitably used as a surfactant and is low in bioaccumulation. The invention is also a method of fluoropolymer production and an aqueous fluoropolymer dispersion, using the fluoroethercarboxylic acid as a surfactant.Type: GrantFiled: January 2, 2009Date of Patent: August 17, 2010Assignee: Daikin Industries, Ltd.Inventors: Takuji Ishikawa, Nobuhiko Tsuda, Yoshihiro Yamamoto
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Patent number: 7772428Abstract: Methods of production for Tricreatine Hydroxycitrate are disclosed. Tricreatine hydroxycitrate can be used as supplemental dietary ingredient for the purposes of reducing adiposity, suppression of appetite, improvement of muscle and exercise performance and recovery. The salts are useful in the dietetic, food supplement and food industries.Type: GrantFiled: April 24, 2008Date of Patent: August 10, 2010Assignee: Northern Innovations and FormulationsInventors: Marvin Heuer, Michele Molino
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Publication number: 20100120917Abstract: The present invention relates to new butylammonium modulators of fatty acid transport, and/or removal of toxic acyl-CoA compounds, pharmaceutical compositions thereof, and methods of use thereofType: ApplicationFiled: November 10, 2009Publication date: May 13, 2010Applicant: Auspex Pharmaceuticals, Inc.Inventors: Thomas G. Gant, Manouchehr Shahbaz, Craig Hodulik
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Publication number: 20100099868Abstract: Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.Type: ApplicationFiled: October 27, 2009Publication date: April 22, 2010Inventor: Thomas Daly
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Patent number: 7638118Abstract: The present invention relates to aminoalkyl substituted fumarates and there use as malodor neutralizers.Type: GrantFiled: August 20, 2004Date of Patent: December 29, 2009Assignee: Givaudan SAInventors: Felix Flachsmann, Markus Gautschi
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Patent number: 7622499Abstract: The present invention relates to photosensitive derivatives of optically active L-threo-?-benzyloxyaspartate or its benzene ring-substituted analogs, represented by the following formula (1) or (2): (1) (2) wherein R1 represents hydrogen atom, amino group, straight or branched lower aliphatic acylamino group optionally substituted at the acyl group portion, alicyclic acylamino group or aromatic acylamino group optionally having a substituent on the aromatic ring, R2 represents hydrogen atom or one or more straight or branched optionally substituted lower aliphatic alkyloxy groups on the benzene ring, R3 represents hydrogen atom, methyl group or carboxyl group, and R4 and R5 each represent hydrogen atom, hydroxyl group, straight or branched lower alkyloxy group optionally substituted at the alkyl portion, amino group, straight or branched lower alkyl-substituted amino group, or a halogen atom, which upon photoirradiation can produce compounds exhibiting a function of suppressing the glutamate uptake activity oType: GrantFiled: May 30, 2003Date of Patent: November 24, 2009Assignee: Suntory Holdings LimitedInventors: Keiko Shimamoto, Kiyo Takaoka
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Patent number: 7589235Abstract: A new method for preparing salts of metal cations and organic acids, especially divalent salts of alkaline earth metal ions from group II of the periodic system and carboxylic acids. The method comprising the use of a high temperature (about 90° or more) and, optionally. high pressure, in order to obtain a higher yield, purity and faster reaction speed than obtained with known synthesis methods. In particular, the present invention relates to the production of strontium salts of carboxylic acids. Novel strontium salts are also provided by the present method.Type: GrantFiled: May 5, 2005Date of Patent: September 15, 2009Assignee: Osteologix, A/SInventors: Stephan Christgau, Jens E. T. Andersen
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Publication number: 20090017545Abstract: The present invention is a method for calorimetrically determining a metal in a sample using a chelating coloring agent, characterized by coexistence of a masking agent for iron, copper or nickel. Also, the present invention is a reagent for calorimetrically determining a metal in a sample using a chelating coloring agent, characterized by inclusion of a masking agent for iron, copper and/or nickel. Further, the present invention is a masking agent for iron, copper and/or nickel and a method for reducing positive errors due to iron, copper or nickel contained in a sample.Type: ApplicationFiled: February 22, 2007Publication date: January 15, 2009Applicant: Shino-Test CorporationInventors: Kazuhiko Higurashi, Naomi Iizuka
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Publication number: 20080288176Abstract: The present invention provides a method of using a physiologically-based pharmacokinetic model to select a prodrug molecule (NO—X) comprising a therapeutic agent X (e.g. nonsteroidal anti-inflammatory drug, (NSAID)) and an appropriate nitric oxide donor NO. The NSAID can be a non-selective or selective cyclooxygenase inhibitor or other biocompatible compound comprising a carboxyl group. The pharmacokinetic model uses in vitro and/or in silico data to estimate an optimal set of parameters that can predict whether a particular NO—X candidate is capable of producing desirable therapeutic effects, e.g. enhanced anti-inflammatory activity, reduced intestinal, cardiac and renal toxicity. Accordingly, the present invention can greatly enhance proper selection of an appropriate candidate for drug development, thereby minimizing development time and conserving costs.Type: ApplicationFiled: October 13, 2006Publication date: November 20, 2008Inventors: Yun Kau Tam, Christopher Mark Diaper, Hugh A. Semple, Douglas Thacher Ridgway, Yi-Chan James Lin, Brian Duff Sloley
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Patent number: 7247652Abstract: L-threo-?-benzyloxyaspartate derivatives having a substituent on the benzene ring, represented by the following formula (1): wherein R is hydrogen, a linear or branched lower aliphatic acyl group with the acyl portion optionally substituted, an alicyclic acyl group, an aromatic acyl group with a substituent on the aromatic ring, an amino acid-derived group or a biotin derivative-derived group, having an amino substituent on the benzene ring, and salts thereof, which can easily bind to affinity column chromatography carriers as ligands of glutamate transporter proteins.Type: GrantFiled: June 24, 2002Date of Patent: July 24, 2007Assignee: Suntory LimitedInventor: Keiko Shimamoto
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Patent number: 7141608Abstract: Alcohol and water solvates of 6-(5-carboxy-5-methyl-hexyloxy)-2,2-dimethylhexanoic acid monocalcium salt are crystalline and have the formula wherein R1 is H or lower alkyl, and x is a number from 0 to 10, and are useful for treating dyslipidemia.Type: GrantFiled: September 10, 2004Date of Patent: November 28, 2006Assignee: Warmer-Lambert Company LLCInventors: Howard Yoshihisa Ando, Donald Eugene Butler, Gary Jay Dozeman
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Patent number: 6984739Abstract: An inner salt of L-carnitine is prepared by reduction, with a suitable reducing agent, of a compound of formula (I): where X1 and X2, which may be the same or different, are hydroxy, C1–C4 alkoxy, phenoxy, halogen, or X1 and X2, when taken together are an oxygen atom and the resulting compound is a derivative of succinic anhydride; Y is halogen, a mesyloxy or a tosyloxy group, and subsequent treatment with water, then with a base and then with trimethylamine.Type: GrantFiled: November 20, 2003Date of Patent: January 10, 2006Assignee: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.Inventors: Piero Melloni, Alberto Cerri, Marco Santagostino
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Patent number: 6861555Abstract: Alcohol and water solvates of 6-(5-carboxy-5-methyl-hexyloxy)-2,2-dimethylhexanoic acid monocalcium salt are crystalline and have the formula (I), wherein R1 is H or lower alkyl, and x is a number from 0 to 10, and are useful for treating dyslipidemia.Type: GrantFiled: January 11, 2001Date of Patent: March 1, 2005Assignee: Warner-Lambert CompanyInventors: Howard Yoshihisa Ando, Donald Eugene Butler, Gary Jay Dozeman
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Patent number: 6632830Abstract: ACE-2 inhibiting compounds are disclosed. These compounds include compounds of formula (IV): wherein the variables are as described in the specification. Pharmaceutical compositions containing the compounds are also discussed. The pharmaceutical compositions may contain an effective amount of a compound of the invention to treat ACE-2 associated disorders such as a blood pressure related disease or disorder, cell proliferation disorder, kidney disorder, kinetensin associated disorder, inflammation associated disorder, or an allergic disorder.Type: GrantFiled: April 28, 2000Date of Patent: October 14, 2003Assignee: Millennium Pharmaceuticals, Inc.Inventors: Susan L. Acton, Timothy D. Ocain, Alexandra E. Gould, Natalie A. Dales, Bing Guan, James A. Brown
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Patent number: 6627772Abstract: Compounds represented by the formula wherein R and R1 independently represent H, —CH2CN or —CH2CO2X, with the proviso that R and R1 can not be both H or —CH2CO2X; and X represents hydrogen, an alkali metal or alkaline earth metal are disclosed. These compounds are useful as intermediate compounds in the preparation of N-[2-(carboxymethoxy)ethyl]-N-(carboxy-methyl)glycine. These intermediates can be formed by contacting 3-morpholinone with glycolonitrile under alkaline conditions to form an aminonitrile which can be hydrolyzed and contacted with additional glycolonitrile to form the nitrile intermediate which can be converted to N-[2-(carboxymethoxy)ethyl]-N-(carboxymethyl)glycine via hydrolysis.Type: GrantFiled: February 22, 2002Date of Patent: September 30, 2003Assignee: The Dow Chemical CompanyInventors: Phillip S. Athey, David A. Wilson
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Patent number: 6627771Abstract: The instant invention is improved gamma amino butyric acid analogs, processes for their preparation, and methods of using them as agents for treating epilepsy and other neurodegenerative disorders, depression, anxiety, panic, pain, neuropathological disorders, gastrointestinal damage, and inflammation.Type: GrantFiled: April 13, 2001Date of Patent: September 30, 2003Assignee: Pfizer IncInventors: Thomas Richard Belliotti, David Juergen Wustrow
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Patent number: 6590120Abstract: Methods for the preparation of an N-alkyl-N-bis-(2-( 1,2-dicarboxy-ethoxy)-ethyl)-amine derivative are described, products of the methods as well as uses of the products. The derivative is prepared by reacting an alkali or earth alkali metal salt of maleic acid with an N-substituted diethanolamine, the reaction taking place with the two ethanol groups of the diamine while the substituent group bound to the N atom remains unaffected, or alternatively by first reacting diethanolamine with an alkali or earth alkali metal salt of maleic acid to yield N-bis-(2-(1,2-dicarboxy-ethoxy)-ethyl)-amine, which is then reacted with a substitution reagent to obtain the final product. The derivative is useful as chelating agents, e.g., in the bleaching of chemical or mechanical pulp or in textile bleaches containing hydrogen peroxide or a peracid, or as a calcium binder in detergents and cleaning agents.Type: GrantFiled: September 8, 2000Date of Patent: July 8, 2003Assignee: Kemira Chemicals OyInventors: Reijo Aksela, Ilkka Renvall, Aarto Paren
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Patent number: 6555706Abstract: This invention is directed to a process for making an iminodiacetic acid compound from a monoethanolamine substrate having the formula: wherein R1 is hydrogen, hydrocarbyl, or substituted hydrocarbyl. The process includes a series of reactions comprising a cyanomethylation, a hydrolysis and a dehydrogenation with the hydrolysis and dehydrogenation steps being carried out either sequentially or concurrently. In a particular embodiment, the iminodiacetic acid produced is disodium iminodiacetic acid and the monoethanolamine substrate used is 2-aminoethanol.Type: GrantFiled: May 15, 2001Date of Patent: April 29, 2003Assignee: Monsanto CompanyInventors: Howard C. Berk, Thaddeus S. Franczyk, II, Robert B. Weisenfeld, David A. Morgenstern, Juan P. Arhancet, William L. Moench, James C. Peterson
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Patent number: 6504054Abstract: An amino acid derivative composition which comprises two or more kinds of amino acid derivatives represented by the general formula (1): wherein R's are the same or different and each represents a hydrogen atom or an alkyl group containing 1 to 18 carbon atoms; L1 represents —M1—X or —CHX—M2—X; L2 represents —CH2—M3—X or —CHX—M4—X; M1, M2, M3 and M4 are the same or different and each represents a straight or branched alkylene group containing 1 to 6 carbon atoms; X represents COOM; M's are the same or different and each represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom or an ammonium group; m represents an integer of 1 or 2 and n represents an integer of 0 or 1 on the condition that m+n is equal to 2 is provided.Type: GrantFiled: September 5, 2000Date of Patent: January 7, 2003Assignee: Nippon Shokubai Co., Ltd.Inventors: Yasutaka Sumida, Mitsuhiro Kitajima, Tomomi Ina
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Patent number: 6392095Abstract: Compounds represented by the formula wherein R and R1 independently represent H, —CH2CN or —CH2CO2X, with the proviso that R and R1 can not be both H or —CH2CO2X; and X represents hydrogen, an alkali metal or alkaline earth metal are disclosed. These compounds are useful as intermediate compounds in the preparation of N-[2-(carboxymethoxy)ethyl]-N-(carboxy-methyl)glycine. These intermediates can be formed by contacting 3-morpholinone with glycolonitrile under alkaline conditions to form an aminonitrile which can be hydrolyzed and contacted with additional glycolonitrile to form the nitrile intermediate which can be converted to N-[2-(carboxymethoxy)ethyl]-N-(carboxymethyl)glycine via hydrolysis.Type: GrantFiled: March 30, 2001Date of Patent: May 21, 2002Assignee: The Dow Chemical CompanyInventors: Phillip S. Athey, David A. Wilson
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Patent number: 6346648Abstract: The present invention deals with novel compounds their applications and a process their preparation. The compounds are novel amphoteric surfactants that contain a hydroxyl group and two carboxylic groups per hydroxyl group. The compounds have a unique structure, having multiple carboxyl groups on each amino group. The utility for these novel polymers is as softening, anti-tangle, and conditioning agents for use in personal care, textile and related applications.Type: GrantFiled: January 28, 2000Date of Patent: February 12, 2002Assignee: Applied Carbo Chemicals INCInventor: Anthony J. O'Lenick, Jr.
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Publication number: 20020010367Abstract: Compounds represented by the formula 1Type: ApplicationFiled: March 30, 2001Publication date: January 24, 2002Inventors: Phillip S. Athey, David A. Wilson
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Patent number: 6303761Abstract: The present invention provides a triaminepentaacetic acid compound which can be used as a ligand to coordinate to a metal ion to form a paramagnetic metal complex. The paramagnetic metal complex of the present invention can be used as a contrast agent for magnetic resonance imaging (MRI).Type: GrantFiled: January 21, 2000Date of Patent: October 16, 2001Assignee: Department of Health The Executive Yuan, Republic of ChinaInventors: Yun-Ming Wang, Gin-Chung Liu, Chien-Hsun Lee, Reu-Sheng Sheu
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Patent number: 6288244Abstract: A process for the preparation of 3,4-dihydroxybutanoic acid (I) and 3-hydroxy-&ggr;-butyrolactone (V) thereof from a 3-leaving group substituted pentose source is described. In particular, the process relates to the synthesis of (R)-3,4-dihydroxybutanoic acid and (R)-3-hydroxy-&ggr;-butyrolactone from a 3-leaving group substituted L-pentose sugars. The process uses a base and a peroxide to convert the pentose source to the chiral 3,4-dihydroxybutanoic acid compound. The chiral 3,4-dihydroxybutanoic acid can be further converted to 3-hydroxy-&ggr;-butyrolactone by acidification. The chiral compound is useful as a chemical intermediate to the synthesis of various drugs and other products.Type: GrantFiled: September 21, 2000Date of Patent: September 11, 2001Assignee: Board of Trustees operating Michigan State UniversityInventor: Rawle I. Hollingsworth
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Patent number: 6288263Abstract: Compounds represented by the formula wherein R and R1 independently represent H, —CH2CN or —CH2CO2X, with the proviso that R and R1 can not be both H or —CH2CO2X; and X represents hydrogen, an alkali metal or alkaline earth metal are disclosed. These compounds are useful as intermediate compounds in the preparation of N-[2-(carboxymethoxy)ethyl]-N-(carboxy-methyl)glycine. These intermediates can be formed by contacting 3-morpholinone with glycolonitrile under alkaline conditions to form an aminonitrile which can be hydrolyzed and contacted with additional glycolonitrile to form the nitrile intermediate which can be converted to N-[2-(carboxymethoxy)ethyl]-N-(carboxymethyl)glycine via hydrolysis.Type: GrantFiled: May 25, 2000Date of Patent: September 11, 2001Assignee: The Dow Chemical CompanyInventors: Phillip S. Athey, David A. Wilson
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Patent number: 6147113Abstract: The present invention provides blockers for glutamate transporters. During a series of syntheses searching for glutamate uptake inhibition in Xenopus oocytes injected with bovine glutamate transporter genes (BGLAST), we obtained .beta.-hydroxyaspartic acid derivatives of the following chemical formula (1): ##STR1## wherein R represents an aromatic acyl group which may be substituted on the ring, a straight or branched lower aliphatic acyl group, an aryl group which may be substituted on the ring, an aralkyl group which may be substituted on the ring, or a straight or branched lower alkyl group; and salts thereof. These compounds are blockers of glutamate transporters, which are useful for the understanding of the function of glutamate transporters and show promise for the treatment of various neurodegenerative diseases.Type: GrantFiled: October 24, 1997Date of Patent: November 14, 2000Assignee: Suntory LimitedInventors: Keiko Shimamoto, Yoshimi Yasuda, Masahiro Sakaitani, Bruno Lebrun
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Patent number: 6096762Abstract: The present invention relates to the design, synthesis, and the peptidyl-prolyl isomerase (PPIase or rotamase) inhibitory activity of novel .alpha.,.alpha.-difluoroacetamido compounds that are neurotrophic agents (i.e. compounds capable of stimulating growth or proliferation of nervous tissue) and that bind to immunophilins such as FKBP12 and inhibit their rotamase activity. This invention also relates to pharmaceutical compositions comprising these compounds.Type: GrantFiled: May 21, 1999Date of Patent: August 1, 2000Assignee: Bristol-Myers Squibb CompanyInventors: Vivekananda M. Vrudhula, Gene M. Dubowchik, Bireshwar Dasgupta, Dolatrai M. Vyas
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Patent number: 6093849Abstract: The invention relates to N-bis- or N-tris-[(1,2-dicarboxy-ethoxy)-ethyl]-amine derivatives having the formula (I) ##STR1## and R.sub.2 is hydrogen, an alkali metal or an earth-alkali metal. The invention also relates to a method for preparing the same and their use as chelating agents.Type: GrantFiled: November 24, 1998Date of Patent: July 25, 2000Assignee: Kemira Chemicals OyInventors: Reijo Aksela, Ilkka Renvall, Arto Paren
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Patent number: 6077962Abstract: This invention relates to the chemical synthesis of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester using peptide coupling methods. The coupling reaction is conducted by condensation of an activated derivative of novel N-neohexyl-L-aspartic acid with L-phenylalanine or L-phenylalanine methyl ester or by enzymatic coupling of N-neohexyl-L-aspartic acid with L-phenylalanine or L-phenylalanine methyl ester. This invention also relates to novel N-(3,3-dimethylbutyl)-L-aspartic acid, derivatives thereof and the preparation thereof. The activated derivative of N-neohexyl-L-aspartic acid may be an anhydride, mixed anhydride, active ester or an intermediate activated derivative thereof.Type: GrantFiled: December 24, 1998Date of Patent: June 20, 2000Assignee: The NutraSweet CompanyInventors: Indra Prakash, Marie-Christine D. Chapeau
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Patent number: 6063302Abstract: An aqueous iminocarboxylic acid salt solution composition the iminocarboxylic acid salt of which has a structure of the formula (II): ##STR1## wherein R is a hydrogen atom or a hydroxyl group and Y is a sodium atom, a potassium atom, or an ammonium group, contains an aspartic acid backbone moiety whose molar ratio of the isomers, i.e. D form/L form, is in the range of 1/0 to 0.7/0.3 or D form/L form, in the range of 0/1 to 0.3/0.7, and accounts for a concentration in the range of 40 to 70% by weight and a method for handling the composition while keeping the pH value thereof kept in the range of 7 to 12.Type: GrantFiled: October 18, 1995Date of Patent: May 16, 2000Assignee: Nippon Shokubai Co., Ltd.Inventors: Miaki Asakawa, Yasutaka Sumida, Yuichi Kita
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Patent number: 5907055Abstract: The use of triacids of the formula I ##STR1## where X.sup.1 to X.sup.3 are, independently of one another, carboxylic acid groups of the formula COOM, sulfonic acid groups of the formula SO.sub.3 M or phosphonic acid groups of the formula PO.sub.3 M.sub.2, whereM is hydrogen, alkali metal, ammonium or substituted ammonium,A.sup.1 to A.sup.3 are, independently of one another, 1,2-alkylene with 2 to 18 carbon atoms,R.sup.1 to R.sup.3 are, independently of one another, C.sub.1 -C.sub.8 -alkylene, andx, y and z are, independently of one another, a number from 0 to 10, where the total of x+y+z must be greater than or equal to 1,as complexing agents for complexing heavy metals or for preparing heavy metal complexes for changing the redox potential, and as builders in detergents and cleaners.Type: GrantFiled: July 28, 1997Date of Patent: May 25, 1999Assignee: BASF AktiengesellschaftInventors: Thomas Greindl, Birgit Potthoff-Karl, Alfred Oftring, Thomas Fetzer, Richard Baur, Wolfgang Trieselt