Patents by Inventor Helmut Heinrich Buschmann

Helmut Heinrich Buschmann 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).

  • Publication number: 20110160273
    Abstract: The present invention relates to co-crystals of duloxetine and co-crystal formers selected from COX-INHIBITORs, processes for preparation of the same and their uses as medicaments or in pharmaceutical formulations, more particularly for the treatment of pain.
    Type: Application
    Filed: May 20, 2009
    Publication date: June 30, 2011
    Inventors: Helmut Heinrich Buschmann, Lluis Solá Carandell, Jordi Benet Buchholz, Jordi Carles Ceròn Bertran, Jesüs Ramirez Artero
  • Publication number: 20110112095
    Abstract: The invention relates to the use of a group of sigma receptor ligands of formula (I) for the potentiation of the analgesic effect of opioids and opiates and at the same time for decreasing the dependency induced by them.
    Type: Application
    Filed: April 24, 2009
    Publication date: May 12, 2011
    Applicant: LABORATORIOS DEL DR. ESTEVE, S.A.
    Inventors: Helmut Heinrich Buschmann, Jose Miguel Vela-Hernandez, Daniel Zamanillo-Castanedo
  • Publication number: 20110105443
    Abstract: The present invention relates to salts of Memantine and COX-INHIBITORs, their crystal form, the processes for preparation of the same and their uses for the treatment of various disorders, including pain.
    Type: Application
    Filed: March 6, 2009
    Publication date: May 5, 2011
    Applicant: LABORATORIES DEL DR. ESTEVE, S.A.
    Inventors: Helmut Heinrich Buschmann, Nicolas Tesson, Joan Farran, Llorenc Rafecas
  • Publication number: 20110060053
    Abstract: Crystalline modifications of (1R,3R,6R)-6-dimethylaminomethyl-1-(3-methoxyphenyl)-cyclohexane-1,3-diol, (1S,3S,6S)-6-dimethylaminomethyl-1-(3-methoxyphenyl)-cyclohexane-1,3-diol and mixtures thereof, pharmaceutical compositions and medicaments comprising these modifications, the use of these modifications as well as to a process for the enrichment of (1R,3R,6R)- or (1S,3S,6S)-6-dimethylaminomethyl-1-(3-methoxyphenyl)-cyclohexane-1,3-diol.
    Type: Application
    Filed: September 13, 2010
    Publication date: March 10, 2011
    Applicant: Gruenenthal GmbH
    Inventors: Michael Gruss, Helmut Heinrich Buschmann
  • Patent number: 7888510
    Abstract: It was an object of the present invention to provide novel compounds that are suitable in particular as active substances in medicaments, preferably in medicaments for the regulation of neuropeptide Y receptors, particularly preferably of neuropeptide Y5 (NPY5) receptor, for the regulation of food ingestion (food intake), preferably for the prophylaxis and/or treatment of disorders of food ingestion, such as obesity, anorexia, cachexia, bulimia or type II (non insulin dependent) diabetes, for the prophylaxis and/or treatment of disorders of the peripheral nervous system, disorders of the central nervous system, anxiety, depression, cognitive disorders, preferably memory disorders, cardiovascular diseases, pain, epilepsy, arthritis, hypertensive syndrome, inflammatory diseases, immune diseases and other NPY5 mediated disorders in animals and mammals, including man.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: February 15, 2011
    Assignee: Laboratorios del Dr. Esteve S.A.
    Inventors: Antoni Jover Torrens, Josep Mas Prio, Alberto Dordal Zueras, Maria Angeles Fisas Escasany, Helmut-Heinrich Buschmann
  • Publication number: 20110004005
    Abstract: The present invention is directed to novel rhodium-phosphorus complexes of formula: [Rh(PP?)(solv)2]X the process for their preparation and their use as catalysts in the ring opening reaction of heteronorbornenes and other ?,?-unsaturated compounds.
    Type: Application
    Filed: December 3, 2008
    Publication date: January 6, 2011
    Applicant: Laboratorios Del Dr. Esteve, S.A.
    Inventors: Detfleff Heller, Hans-Joachim Drexler, Angelika Preetz, Antoni Torrens Jover, Helmut Heinrich Buschmann
  • Publication number: 20100280072
    Abstract: The present invention relates to 1,4-disubstituted piperidine compounds of general formula (I), methods for their preparation, medicaments comprising these compounds as well as their use for the preparation of a medicament for the treatment of humans or animals. The substituents are as defined in the present claim 1.
    Type: Application
    Filed: July 12, 2010
    Publication date: November 4, 2010
    Applicant: LABORATORIOS DEL DR. ESTEVE S.A
    Inventors: Antoni TORRENS JOVER, Josep Mas Prió, Alberto Dordal Zueras, Maria Angeles Fisas Escasany, Helmut-Heinrich Buschmann
  • Publication number: 20100227927
    Abstract: The present invention concerns salts of Tramadol and Naproxen and their crystalline forms, and compositions thereof, for the treatment of pain, as well as their process for preparation.
    Type: Application
    Filed: July 31, 2008
    Publication date: September 9, 2010
    Applicant: LABORATORIOS DEL DR. ESTEVE S.A.
    Inventors: Helmut Heinrich Buschmann, Antoni Torrens-Jover, Josep Mas-Prio, Jordi Benet-Buchholz, Lluis Sola-Carandell, Jordi Carles Ceron-Bertran
  • Publication number: 20100215771
    Abstract: The present invention refers to the use of sodium channel blockers such as tetrodotoxin or saxitoxin, its analogues/derivatives as well as their acceptable salts, for the production of a medicament for the treatment of neuropathic pain resulting from chemotherapy.
    Type: Application
    Filed: March 26, 2007
    Publication date: August 26, 2010
    Applicant: WEX PHARMACEUTICALS INC.
    Inventors: Helmut Heinrich Buschmann, Jose Miguel Vela Hernandez, Jose Manuel Baeyens
  • Publication number: 20100197939
    Abstract: The invention provides a new enantioselective process for the preparation of (S)-pregabalin, or a pharmaceutical acceptable addition acid salt comprising: acid hydrolysis of the dioxolan ring of a chiral compound of general formula (I) to obtain compound of general formula (II); oxidation of compound (II) to obtain a compound of general formula (III) and transforming compound (III) into compound of general formula (IV); subjecting compound (IV) to basic hydrolysis to obtain a compound of general formula (V) which is reduced to obtain enantiomerically pure S-pregabalin. The invention also provides new chiral intermediates involved in the process.
    Type: Application
    Filed: July 17, 2008
    Publication date: August 5, 2010
    Applicant: LABORATORIOS DEL DR. ESTEVE, S.A.
    Inventors: Rosa M. Ortuno, Sandra Izquierdo, Helmut Heinrich Buschmann, Antoni Torrens Jover, Monica Garcia Lopez
  • Patent number: 7763754
    Abstract: A process for producing (1R,3R,6R)-6-dimethylaminomethyl-1-(3-methoxyphenyl)-cyclohexane-1,3-diol or (1S,3S,6S)-6-dimethylaminomethyl-1-(3-methoxyphenyl)-cyclohexane-1,3-diol or mixtures thereof.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: July 27, 2010
    Assignee: Gruenenthal GmbH
    Inventors: Helmut Heinrich Buschmann, Wolfgang Hell, Joerg Holenz, Oswald Zimmer, Irene Vaulont, Dieter Haag, Emad El Sayed, Robert Hett, Alfed Olbrich, Lars Pumpenmeier
  • Publication number: 20100120747
    Abstract: The present invention relates to an active substance combination comprising at least one compound with 5-HT6 receptor affinity, and at least one cholinesterase inhibitor, a medicament comprising said active substance combination, and the use of said active substance combination for the manufacture of a medicament.
    Type: Application
    Filed: June 22, 2007
    Publication date: May 13, 2010
    Applicant: Laboratorios del Dr. Esteve, S.A.
    Inventors: Xavier Codony-Soler, Helmut Heinrich Buschmann
  • Publication number: 20100099916
    Abstract: The present invention relates to a process for the preparation of (1R,2R)-3-dimethylamino-1-ethyl-2-methyl-propyl)-phenol.
    Type: Application
    Filed: July 23, 2007
    Publication date: April 22, 2010
    Applicant: Gruenenthal GMBH
    Inventors: Wolfgang Hell, Oswald Zimmer, Helmut Heinrich Buschmann, Joerg Holenz, Stefan Gladow
  • Publication number: 20100074955
    Abstract: The present invention relates to an active substance combination comprising at least one compound with 5-HT6 receptor affinity, and at least NMDA-receptor ligand, a medicament comprising said active substance combination, and the use of said active substance combination for the manufacture of a medicament.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 25, 2010
    Applicant: LABORATORIOS DEL DR. ESTEVE, S.A.
    Inventors: Helmut Heinrich Buschmann, Xavier Codony-Soler
  • Patent number: 7649114
    Abstract: The invention concerns a method for the isolation of a stereoisomer from a mixture comprising the two stereoisomers of the general formulae (I-A) and (I-A?) and/or the two stereoisomers of the general formulae (I-B) and (I-B?) in which R1, R2 and R3, identical or different, are selected from the group consisting of —H, —F, —Cl, —C1-C6-alkyl, —S—C1-C6-alkyl, —OH, —O—C1-C6-alkyl, —O—C1-C6-alkylenephenyl, —OCO—C1-C6-alkyl, —OCON(C1-C6-alkyl)2 and —O—SiR8R9R10 (in which R8, R9 and R10, identical or different, are —C1-C6-alkyl or -phenyl); R4 is —H or —C1-C6-alkyl; R5 is —C1-C6-alkyl; and R6 and R7, identical or different, are —H or —C1-C6-alkyl; or their salts with organic or inorganic acids; comprising the step (a) manipulating the mixture ratio of the stereoisomers in the mixture so that at least one of the stereoisomers is present in an enantiomeric excess.
    Type: Grant
    Filed: May 29, 2006
    Date of Patent: January 19, 2010
    Assignee: Gruenenthal GmbH
    Inventors: Helmut Heinrich Buschmann, Wolfgang Hell
  • Publication number: 20090253936
    Abstract: A process for producing (1R,3R,6R)-6-dimethylaminomethyl-1-(3-methoxyphenyl)-cyclohexane-1,3-diol or (1S,3S,6S)-6-dimethylaminomethyl-1-(3-methoxyphenyl)-cyclohexane-1,3-diol or mixtures thereof.
    Type: Application
    Filed: February 27, 2009
    Publication date: October 8, 2009
    Applicant: Gruenenthal GmbH
    Inventors: Helmut Heinrich BUSCHMANN, Wolfgang Hell, Joerg Holenz, Oswald Zimmer, Irene Vaulont, Dieter Haag, Emad El Sayed, Robert Hett, Alfed Olbrich, Lars Pumpenmeier
  • Publication number: 20090247771
    Abstract: The present invention is directed to a process for the preparation of an enantiomerically enriched compound of formula II wherein, R1, R2 and R3 are each independently selected from hydrogen, halogen, substituted or unsubstituted lower alkyl or substituted or unsubstituted aryl; X is —C(?O)-Z or —Y, wherein —Y is selected from —CH2—OR4, —CH2-halogen or —CH2—NR6R7; wherein Z is selected from —NR6R7 or —OR5, wherein R5 is selected from hydrogen, substituted or unsubstituted lower alkyl or ester activating group; R4 is selected from hydrogen, hydroxyl protecting group or hydroxyl activating group; R6 and R7 are each independently selected from hydrogen, amino protecting group, amido protecting group or substituted or unsubstituted lower alkyl; or a pharmaceutically acceptable salt, complex or solvate thereof; which comprises an enantioselective addition with a thienyl zinc reagent, in the presence of a chiral ligand.
    Type: Application
    Filed: February 27, 2007
    Publication date: October 1, 2009
    Inventors: Helmut Heinrich Buschmann, Antoni Torrens Jover, Matthias Lormann, Stefan Dahmen
  • Publication number: 20090209528
    Abstract: The present invention relates to substituted tetrahydroisoquinoline compounds of general formula (I), a process for their preparation, medicaments comprising said substituted tetrahydroisoquinoline compounds as well as the use of said substituted tetrahydroisoquinoline compounds for the preparation of medicaments, which are particularly suitable for the prophylaxis and/or treatment of disorders or diseases that are at least partially mediated via 5-HT6 receptors.
    Type: Application
    Filed: March 23, 2007
    Publication date: August 20, 2009
    Applicant: LABORATORIOS DEL DR. ESTEVE S.A.
    Inventors: Josep Mas Prio, Adriana Port Casamitjana, Helmut Heinrich Buschmann
  • Publication number: 20090143415
    Abstract: The present invention refers to the use of a sodium channel blocker such as tetrodotoxin or saxitoxin, their analogues and derivatives as well as their physiologically acceptable salts, in medicinal products for human therapeutics for the treatment of central-nervously derived neuropathic pain.
    Type: Application
    Filed: September 21, 2005
    Publication date: June 4, 2009
    Applicant: Wex Pharmaceuticals, Inc.
    Inventors: Helmut Heinrich Buschmann, Frank Hay Kong Shum, Kim Noel Fisher, Anh Ho Ngoc, Michel Hamon
  • Publication number: 20080269524
    Abstract: The invention concerns a method for the isolation of a stereoisomer from a mixture comprising the two stereoisomers of the general formulae (I-A) and (I-A?) and/or the two stereoisomers of the general formulae (I-B) and (I-B?) in which R1, R2 and R3, identical or different, are selected from the group consisting of —H, —F, —Cl, —C1-C6-alkyl, —S—C1-C6-alkyl, —OH, —O—C1-C6-alkyl, —O—C1-C6-alkylenephenyl, —OCO—C1-C6-alkyl, —OCON(C1-C6-alkyl)2 and —O—SiR8R9R10 (in which R8, R9 and R10, identical or different, are —C1-C6-alkyl or -phenyl); R4 is —H or —C1-C6-alkyl; R5 is —C1-C6-alkyl; and R6 and R7, identical or different, are —H or —C1-C6-alkyl; or their salts with organic or inorganic acids; comprising the step (a) manipulating the mixture ratio of the stereoisomers in the mixture so that at least one of the stereoisomers is present in an enantiomeric excess.
    Type: Application
    Filed: May 29, 2006
    Publication date: October 30, 2008
    Applicant: Gruenenthal GmbH
    Inventors: Helmut Heinrich Buschmann, Wolfgang Hell