Patents by Inventor Alfred Olbrich

Alfred Olbrich 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: 8071796
    Abstract: The current invention describes novel chiral synthetic routes and intermediates for the manufacture of chiral anti-inflammatory agents of general formula VIII in which at least one of the groups X1, X2, X3 is selected from fluoro, chloro, bromo, hydroxy, methoxy, ethoxy, trifluoromethyl, amino whereas the other groups X1, X2, X3 have the meaning of a hydrogen atom, in which at least one of the groups Z1, Z2, Z3 is selected from —O—, —S—, —NH—, —N(—CH3)—, whereas the other groups Z1, Z2, Z3 have the meaning of a —CH2— group, and in which Ar is an aromatic group.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: December 6, 2011
    Assignee: Intendis GmbH
    Inventors: Steffen Schweizer, Alfred Olbrich
  • Publication number: 20090216002
    Abstract: A method for synthesising a compound having the general formula (I) wherein R represents substituents selected independently from the group of H, F, Cl, Br, NO2, alkyl, aryl, aralkyl, alkoxy, aryloxy, aralkoxy and disubstituted amine R? is independently selected from the group of H, F, Cl, Br, OH, NO2, alkyl, aryl, aralkyl, alkoxy, aryloxy, aralkoxy and disubstituted amine, n is selected from 1, 2 or 3.
    Type: Application
    Filed: June 14, 2006
    Publication date: August 27, 2009
    Applicant: Girindus AG
    Inventors: Stefan Kleinebekel, Nasir Hayat, Stephan Seck, Alfred Olbrich
  • Publication number: 20050176651
    Abstract: Tripeptide boronic acids of (R,S,R) configuration, for example Cbz-(R)-Phe-(S)-Pro-(R)-Mpg-B(OH)2, and their use to make base addition salts of such acids. The salts are formulated into anti-thrombotic pharmaceutical formulations.
    Type: Application
    Filed: September 8, 2004
    Publication date: August 11, 2005
    Inventors: David Madge, Mark Dolman, Armin Walter, Dieter Krimmer, John Deadman, Alfred Olbrich, Andrea Weiland-Waibel
  • Publication number: 20050119226
    Abstract: Organoboronic acids, for example Cbz-(R)-Phe-(S)-Pro-(R)-Mpg-B(OH)2, are made by hydrolysing their diethanolamine adducts under conditions which avoid substantial C—B bond breakage. The product acids are substantially free of degradation product derived from cleavage of the C—B bond thereof. The acids are used to make base addition salts thereof. The salts are formulated into anti-thrombotic pharmaceutical formulations.
    Type: Application
    Filed: September 8, 2004
    Publication date: June 2, 2005
    Inventors: Armin Walter, Alfred Olbrich, Andrea Weiland-Waibel, Dieter Krimmer
  • Patent number: 6538151
    Abstract: The invention relates to novel modifications of the compound 2-amino-4-(4-fluorobenzylamino)-1-ethoxy-carbonylaminobenzene of the processes for their preparation and their use in pharmaceutical compositions.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: March 25, 2003
    Assignee: Asta Medica Aktiengesellschaft
    Inventors: Peter Meisel, Karl-Friedrich Landgraf, Jürgen Schäfer, Wilfried Thiel, Matthias Rischer, Alfred Olbrich, Bernhard Kutscher
  • Patent number: 6028209
    Abstract: A process for the preparation of C.sub.14 -C.sub.18 -alkylphosphocholines by reacting an n-alkanol with a chain length of C.sub.14 -C.sub.18 with phosphorus oxychloride in an inert solvent or also without solvent in the presence or absence of a basic substance in a single vessel process and subsequent reaction of the reaction product in an inert solvent with a choline salt in the presence of a basic substance to form phosphoric acid diester chloride, subsequent hydrolysis and isolation of alkylphosphocholine as well as optionally purification using a mixed-bed ion exchanger or in successive steps with an acid ion exchanger and a basic ion exchanger.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: February 22, 2000
    Assignee: Asta Medica AG
    Inventors: Jurgen Engel, Bernd Kutscher, Wolfgang Schumacher, Ulf Niemeyer, Alfred Olbrich, Gerhard Nossner
  • Patent number: 6013815
    Abstract: The invention relates to the production and purification of salts of 6,8-bis (amidiniumthio)octanoic acid, its enantiomers (+)-6,8-bis(amidiniumthio)octanoic acid and (-)-6,8-bis (amidiniumthio)octanoic acid and of the esters of these compounds as well as to their use to produce dihydrolipoic acid and .alpha.-lipoic acid.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: January 11, 2000
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Thomas Beisswenger, Rainer Gewald, Alfred Olbrich, Horst Bethge, Frank Hubner, Klaus Huthmacher, Herbert Klenk, Roland Moller, Stephan Rautenberg, Gerhard Sator
  • Patent number: 5959115
    Abstract: A process for preparation of pure flupertine maleate and the pure A crystalline form of flupertine maleate by the use of water soluble alcohols during synthesis and/or purification.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: September 28, 1999
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Alfred Olbrich, Peter Emig, Bernhard Kutscher, Karl-Friedrich Landgraf, Siegfried Pauluhn, Hans Stange
  • Patent number: 5942639
    Abstract: A process for the preparation of C.sub.14 -C.sub.18 -alkylphosphocholines by reacting an n-alkanol with a chain length of C.sub.14 -C.sub.18 with phosphorus oxychloride in an inert solvent or also without solvent in the presence or absence of a basic substance in a single vessel process and subsequent reaction of the reaction product in an inert solvent with a choline salt in the presence of a basic substance to form phosphoric acid diester chloride, subsequent hydrolysis and isolation of alkylphosphocholine as well as optionally purification using a mixed-bed ion exchanger or in successive steps with an acid ion exchanger and a basic ion exchanger.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: August 24, 1999
    Assignee: Asta Medica Aktiengesellschaft
    Inventors: Jurgen Engel, Bernd Kutscher, Wolfgang Schumacher, Ulf Niemeyer, Alfred Olbrich, Gerhard Nssner
  • Patent number: 5914425
    Abstract: The invention relates to novel modifications of the compound 2-amino-4-(4-fluorobenzylamino)-1-ethoxy-carbonylaminobenzene of the formula I ##STR1## processes for their preparation and their use in pharmaceutical compositions.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: June 22, 1999
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Peter Meisel, Karl-Friedrich Landgraf, Jurgen Schafer, Wilfried Thiel, Matthias Rischer, Alfred Olbrich, Bernhard Kutscher
  • Patent number: 5760221
    Abstract: This disclosure describes two technical procedures for the high-yield synthesis of heterocyclic seven-membered ring-systems by Dieckmann-condensation avoiding usual dilution techniques and long reaction times. Thus, it significantly increases the overall yields of the pharmaceutically active ingredients azelastine and flezelastine, whose synthesis, starting from these seven-membered heterocyclic rings, is reported elsewhere. Yields range from 80-89%, avoiding waste and increasing economics of the synthesis.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: June 2, 1998
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Alfred Olbrich, Jurgen Engel, Bernhard Kutscher, Roland Moller
  • Patent number: 5760268
    Abstract: The invention relates to the production and purification of salts of 6,8-bis(amidiniumthio) octanoic acid, its enantiomers (+)-6,8-bis(amidiniumthio)octanoic acid and (-)-6,8-bis (amidiniumthio)octanoic acid and of the esters of these compounds as well as to their use to produce dihydrolipoic acid and .alpha.-lipoic acid.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: June 2, 1998
    Assignee: Asta Medica Aktiengesellschaft
    Inventors: Thomas Beisswenger, Rainer Gewald, Alfred Olbrich, Horst Bethge, Frank Hubner, Klaus Huthmacher, Herbert Klenk, Roland Moller, Stephan Rautenberg, Gerhard Sator