Patents by Inventor Andreas Meudt

Andreas Meudt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8975396
    Abstract: The invention relates to a process for the asymmetric transfer hydrogenation of a ketone substrate to produce as chiral secondary alcohol with an ee of greater than 85% in which an enantio-enriched chiral catalyst containing ruthenium or rhodium is used with a hydrogen donor and in which an anion exchange resin is used as a base.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: March 10, 2015
    Assignee: Euticals GmbH
    Inventors: Richard Wisdom, Joerg Jung, Andreas Meudt
  • Patent number: 8598386
    Abstract: The present invention relates to a method for producing (R)-2-acetamido-N-benzyl-3-methoxypropionamide (lacosamide), by methylation of (R)-2-acetamino-2-N-benzyl-3-hydroxy-propionamide (V), in which the methylation is carried out at a temperature below 20° C.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: December 3, 2013
    Assignee: Euticals GmbH
    Inventors: Richard Wisdom, Joerg Jung, Andreas Meudt
  • Patent number: 8487134
    Abstract: The invention relates to processes for preparing acylated amphetamine, methamphetamine and dexamphetamine derivatives by reacting the parent amine with the to be-coupled acid or a salt of the to-be coupled acid which acid is optionally protected, in the presence of an alkylphosphonic acid anhydride as coupling agent and, if the acid was protected then cleaving the protecting group(s), in a one-pot reaction or in two or more separate steps.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: July 16, 2013
    Assignee: Archimica, Inc.
    Inventors: Andreas Meudt, Richard Wisdom, Jason Helmke, Quofang Qiu, Paul Meek
  • Publication number: 20120095251
    Abstract: The present invention relates to a method for producing (R)-2-acetamido-N-benzyl-3-methoxypropionamide (lacosamide), by methylation of (R)-2-acetamino-2-N-benzyl-3-hydroxy-propionamide (V), in which the methylation is carried out at a temperature below 20° C.
    Type: Application
    Filed: October 17, 2011
    Publication date: April 19, 2012
    Inventors: Richard WISDOM, Joerg JUNG, Andreas MEUDT
  • Publication number: 20110319649
    Abstract: The invention relates to ((R)-1-Benzylcarbamoyl-2-hydroxy-ethyl)-carbamic acid tert-butyl ester (compound III) with an ee of greater than 90%. and a process for producing the same.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 29, 2011
    Inventors: Richard WISDOM, Joerg JUNG, Andreas MEUDT
  • Publication number: 20110196173
    Abstract: The invention relates to processes for preparing acylated amphetamine, methamphetamine and dexamphetamine derivatives by reacting the parent amine with the to be-coupled acid or a salt of the to-be coupled acid which acid is optionally protected, in the presence of an alkylphosphonic acid anhydride as coupling agent and, if the acid was protected then cleaving the protecting group(s), in a one-pot reaction or in two or more separate steps.
    Type: Application
    Filed: October 9, 2008
    Publication date: August 11, 2011
    Inventors: Andreas Meudt, Richard Wisdom, Jason Helmke, Quofang Qiu, Paul Meek
  • Patent number: 7939688
    Abstract: Process for preparing nitriles by reacting N-alkylcarboxamides (RCO—NHR1) or ammonium salts of carboxylic acids (RCOO—NH3R1+) or carboxylic acids in the presence of alkylamines or ammonium salts (RCOOH+NH2R1, RCOOH+NH3R1+), respectively, R being an arbitrarily substituted linear or branched C1-C12-alkyl radical, a C3-C12 cycloalkyl radical or an alkenyl, alkynyl or aryl or heteroaryl radical and R1 being an arbitrary substituted, linear or branched C2-C1 alkyl radical, a C3-C12 cycloalkyl radical or an alkenyl or alkynyl radical, with phosphonic anhydrides in the presence of an optional base in an organic solvent at a temperature in the range from ?30 to 180° C.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: May 10, 2011
    Assignee: Archimica GmbH
    Inventors: Andreas Meudt, Sven Nerdinger, Claudius Boehm
  • Publication number: 20100094010
    Abstract: Processes for preparing compounds of Formula I and IV are described.
    Type: Application
    Filed: October 16, 2009
    Publication date: April 15, 2010
    Applicant: AstraZeneca AB
    Inventors: Margaret Anne Butlin, Roger John Butlin, Philip John Hogan, Andreas Meudt
  • Patent number: 7626020
    Abstract: The invention relates to compounds such as where P is a nitrogen-protecting group, and to processes for preparing these compounds.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: December 1, 2009
    Assignee: AstraZeneca AB
    Inventors: Margaret Anne Butlin, Roger John Butlin, Philip John Hogan, Andreas Meudt
  • Publication number: 20090286995
    Abstract: A process for the manufacture of aminocarbonyl boronic acids of formula (IV) by converting the compounds of formula (III) with a Brønsted base Y(OH)n in a solvent or a solvent mixture, in which Z represents an optionally substituted arylene, heteroarylene, alkene, heteroalkene, alkylidene, heteroalkylidene, alkenylidene, heteroalkenylidene, alkynylidene, arylalkylene, heteroarylalkylene, arylheteroalkylene, heteroarylheteroalkylene, alkylheteroarylene, heteroalkylheteroarylene, or alkylarylene group; Y represents a metal or ammonium cation of valence n with 0<n<5; and B represents boronic acid, boronic acid ester, or a borate, or a boronic acid anhydride. The aminocarbonyl boronic acids of formula (IV) can be further hydrolyzed to form the carboxy boronic acid of formula (V).
    Type: Application
    Filed: March 1, 2007
    Publication date: November 19, 2009
    Inventors: Andreas Meudt, Sven Nerdinger, Bernd Wilhelm Lehnemann
  • Publication number: 20090143586
    Abstract: The invention relates to a method for producing alkyl-substituted aromatic and heteroaromatic compounds by cross-coupling alkyl boronic acids with aryl- or heteroaryl-halogenides or with aryl- or heteroaryl-sulfonates in the presence of a catalyst and of a Brönsted base in a solvent or solvent mixture.
    Type: Application
    Filed: March 7, 2006
    Publication date: June 4, 2009
    Inventors: Stefan Scherer, Andreas Meudt, Sven Nerdinger, Bernd Wilhelm Lehnemann, Thomas Jagusch, Victor Snieckus
  • Patent number: 7468460
    Abstract: A method for producing unprotected or carbamate-protected amines of formulae (II) and (III) or R1—NH2 (II) or R1—NHCO2R2 (III) by reacting hydroxamic acids of formula (I) (R1 CONHOH) with a) alkylpliosphonic acid anhydrite's, b) alcohol R2OH and c) optionally with a base, at a temperature ranging from 100 to +120°C., wherein the hydroxainic acid (I) is produced prior to or during reacting (in situ) and R1 is an optionally substituted linear or branched C1-C12 alkyl radical, substituted C3-C10 cycloalkyl, alkenyl, aryl or heteroaryl radical and R2 is an open-chain, cyclic or branched allyl, aryl or C1 to C12-alkyl radicals, or aryloxy, allyloxy or alkoxy radical possibly substituted with open-chain, cyclic or branched C1 to C12-alkyl radicals.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: December 23, 2008
    Assignee: Archimica GmbH
    Inventors: Andreas Meudt, Claudius Boehm
  • Publication number: 20080306260
    Abstract: The invention relates to a method for producing aryl or heteroaryl amines, ethers or thioethers (III) by cross-coupling primary or secondary amities, alcohols or thioalcohols with substituted aryl or heteroaryl compounds (I) in the presence of a Brønsted base and a catalyst or a pre-catalyst containing a) a transition metal, a complex, a salt, or a compound of a transition metal from the group V, Mn, Fe, Co, Ni, Rh, Pd, Ir, Pt, and b) at least one sulfonated phosphane ligand in a solvent or a solvent mixture corresponding to Scheme 1 wherein Hal represents fluorine, chlorine, bromine, iodine, alkoxy, trifluoromethane sulfonate, nonafluorotrimethyl-methane sulfonate, methane sulfonate, 4-nitrobenzene sulfonate, benzene sulfonate, 2-naphthalene sulfonate, 3-nitrobenzene sulfonate, 4-nitrobenzene sulfonate, 4-chlorobenzene sulfonate, 2,4,6-triisopropylbenzene sulfonate or any other sulfonate, and X represents O, S or NR?. The invention also relates to novel phosphane ligands.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 11, 2008
    Inventors: Andreas Meudt, Sven Nerdinger, Bernd Wilhelm Lehnemann, Joerg Jung, Till Vogel, Victor Snieckus
  • Publication number: 20080242884
    Abstract: Process for preparing nitriles by reacting N-alkylcarboxamides (RCO—NHR1) or ammonium salts of carboxylic acids (RCOO—NH3R1+) or carboxylic acids in the presence of alkylamines or ammonium salts (RCOOH+NH2R1, RCOOH+NH13R1+) respectively, R being an arbitrarily substituted linear or branched C1-C12-alkyl radical, a C3-C12 cycloalkyl radical or an alkenyl, alkynyl or aryl or heteroaryl radical and R1 being an arbitrary substituted, linear or branched C2-C1 alkyl radical, a C3-C12 cycloalkyl radical or an alkenyl or alkynyl radical, with phosphonic anhydrides in the presence of an optional base in an organic solvent at a temperature in the range from ?30 to 180° C.
    Type: Application
    Filed: July 5, 2006
    Publication date: October 2, 2008
    Inventors: Andreas Meudt, Sven Nerdinger, Claudius Boehm
  • Publication number: 20080221350
    Abstract: Process for preparing compounds by cross-coupling of enolizable carbonyl compounds, nitriles or their analogues with substituted aryl or heteroaryl compounds in the presence of a Brönsted base and of a catalyst or precatalyst containing a.) a transition metal, a complex, a salt or a compound of this transition metal from the group V, Mn, Fe, Co, Ni, Rh, Pd, Ir, Pt) and b.) at least one sulphonated phosphane ligand in a solvent or solvent mixture.
    Type: Application
    Filed: September 12, 2006
    Publication date: September 11, 2008
    Inventors: Andreas Meudt, Sven Nerdinger, Bernd Wilhelm Lehnemann, Till Vogel, Victor Snieckus
  • Publication number: 20080221357
    Abstract: A method for producing unprotected or carbamate-protected amines of formulae (II) and (III) or R1—NH2 (II) or R1—NHCO2R2 (III) by reacting hydroxamic acids of formula (I) (R1CONHOH) with a) alkylphosphonic acid anhydrite's, b) alcohol R2OH and c) optionally with a base, at a temperature ranging from 100 to +120° C., wherein the hydroxamic acid (I) is produced prior to or during reacting (in situ) and R1 is an optionally substituted linear or branched C1-C12 alkyl radical, substituted C3-C10 cycloalkyl, alkenyl, aryl or heteroaryl radical and R2 is an open-chain, cyclic or branched allyl, aryl or C1 to C12-alkyl radicals, or aryloxy, allyloxy or alkoxy radical possibly substituted with open-chain, cyclic or branched C1 to C12-alkyl radicals.
    Type: Application
    Filed: July 5, 2006
    Publication date: September 11, 2008
    Inventors: Andreas Meudt, Claudius Boehm
  • Publication number: 20080214825
    Abstract: Methods for producing substituted halopyridines (II) by reacting a ?-hydroxy-y-acyl butyronitrile (I) or a suitable acyl-protected derivative with hydrogen halides, or substances or mixtures that can release hydrogen halides. In the formulae (I) and (II): R, R4 represent H, a linear or branched alkyl group, optionally a substituted aryl group, an aralkyl group, or optionally a substituted heteroaryl group; R1, R2, R3 represent H, a linear or branched alkyl group, optionally a substituted aryl, aralkyl, optionally a substituted heteroaryl group or one of the following groups CnH(2n+1?m)Xm, COOR, or CN; R5 represents H, a linear or branched alkyl group, optionally a substituted aryl group, an aralkyl, optionally a substituted heteroaryl or one of the following groups CnH(2n+1?m)Xm, COOR, CN, SO2R, SOR, PO(OR)2; n represents a positive whole number; m represents a positive whole number ?2n+1; and X represents F, Cl, Br, or I.
    Type: Application
    Filed: June 14, 2006
    Publication date: September 4, 2008
    Inventors: Bernd Wilhelm Lehnemann, Joerg Jung, Andreas Meudt
  • Publication number: 20080206826
    Abstract: The invention relates to a method for producing single enantiomer epoxides by reducing ?-leaving group-substituted ketones with (R)- or (S)-selective alcohol dehydrogenases in the presence of a cofactor and optionally a suitable system for regenerating the oxidised cofactor, to produce the corresponding single enantiomer alcohols and subsequently, by means of cyclisation induced by a base, the corresponding single enantiomer epoxides (EQUATION 1) wherein LG may stand for F, Cl, Br, I, OSO2Ar, OSO2CH3, OSO2R or OP(O)OR2, and R1, R2 and R3, independently of one another, stand for hydrogen, a branched or unbranched, optionally substituted C1-C20-alkyl radical, symbolize an optionally randomly substituted C3-C1-10-cycloalkyl or alkenyl radical or a randomly substituted carbo- or heterocyclic aryl radical, or correspond to a radical from the group CO2R, CONR2, COSR, CS2R, C(NH)NR2, CN, CHaI3, ArO, ArS, RO, RS, CHO, OH, NHR, NR2, Cl, F, Br, I or SiR3.
    Type: Application
    Filed: June 7, 2006
    Publication date: August 28, 2008
    Inventors: Andreas Meudt, Richard Wisdom, Claudius Boehm
  • Publication number: 20080188671
    Abstract: Methods for producing furfural-4-boronic acid by the reaction of furfural acetals (I), which are substituted by halogen in position 4, with boronic acid esters or anhydrides, by the subsequent metalation of compound (I) and the simultaneous or subsequent reaction with a boronic acid ester or anhydride to form an acetal-protected furfural-4-boronic acid ester. This product is subjected to acid hydrolysis to form furfural-4-boronic acid. In the formulae: X represents chlorine, bromine or iodine; R represents a branched, unbranched and/or cyclic, optionally substituted C1-C20 alkyl group, an optionally substituted C6-C12 aryl group or an optionally substituted C3-C8 cycloalkyl group, the two groups R together can form a ring; R?, R?, R?? independently of one another represent acylic or cyclic, branched or unbranched, optionally substituted C1-C20 alkyl groups, or optionally substituted aryl groups, optionally two of the groups R?, R? and R?? together form a ring, or represent additional groups B(OR)3.
    Type: Application
    Filed: May 10, 2006
    Publication date: August 7, 2008
    Inventors: Andreas Meudt, Sven Nerdinger, Michael Erbes, William Vogt
  • Patent number: 7405318
    Abstract: The invention relates to a method for producing the nitrites of formula: R1—CN by reacting aldehyde oximes (R1CN?N—OH) with cyclic alkylphosphonic anhydrides at a temperature ranging from ?100 to +120° C., wherein R1 represents H, a linear or branched C1-C12 alkyl group, a C3-C10 cycloalkyl, alkenyl or an aryl or heteroaryl group. The cyclic phosphonic anhydride preferably used is a 2,4,6-substituted 1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide of formula (I), wherein R? independently represents allyl, aryl or open-chain or branched C1 to C12 alkyl groups.
    Type: Grant
    Filed: June 4, 2005
    Date of Patent: July 29, 2008
    Assignee: Archimica GmbH
    Inventors: Andreas Meudt, Stefan Scherer, Claudius Boehm