Patents Assigned to Richter Gedeon
  • Patent number: 7365083
    Abstract: Compounds having NR2B selective NMDA receptor antagonist activity are disclosed of the formula (I) wherein two of the neighboring R1, R2, R3 and R4 groups form an oxo-oxazolidine ring fused to the benzene ring of the indole nucleus, and the other two of R1, R2, R3 and R4 groups are hydrogen atoms, R5 and R6 together with the nitrogen between them form a saturated or unsaturated, 4-6 membered heterocyclic ring, which is substituted by phenoxy, phenyl-(C1-C4 alkyl), phenyl-(C1-C4 alkoxy), phenoxy-(C1-C4 alkyl), or benzoyl, optionally substituted on the aromatic ring by one or more halogen atoms, cyano or hydroxy groups, C1-C4 alkyl or C1-C4 alkoxy groups, X is NH—, Y is a —CH— group, or pharmaceutically acceptable salts thereof formed with acids or bases.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: April 29, 2008
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csilla Horvath, Sandor Farkas, György Domany, Istvan Borza, Gizella Bartane Szalai, Jozsef Nagy, Sandor Kolok
  • Patent number: 7361670
    Abstract: Compounds having NR2B selective NMDA receptor antagonist activity are disclosed of the formula (I) wherein one of the neighboring R1, R2, R3 and R4 groups is hydroxy, and the others are each hydrogen atoms, R5 and R6 together with the nitrogen between them form a saturated or unsaturated, 4-6 membered heterocyclic ring, which is substituted by phenoxy, phenyl-(C1-C4 alkyl), phenyl-(C1-C4 alkoxy), phenoxy-(C1-C4 alkyl), or benzoyl, optionally substituted on the aromatic ring by one or more halogen atoms, cyano or hydroxy groups, C1-C4 alkyl or C1-C4 alkoxy groups, X is NH—, Y is a —CH— group, or pharmaceutically acceptable salts thereof formed with acids or bases.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: April 22, 2008
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csilla Horvath, Sandor Farkas, György Domany, Istvan Borza, Gizella Bartane Szalai, Jozsef Nagy, Sandor Kolok
  • Publication number: 20070123488
    Abstract: The invention relates to pharmaceutical compositions for the treatment of multiple sclerosis which comprises a zinc-hyaluronan complex, preferably a zinc-hyaluronan complex with a molecular weight of 800-1200 kDa, as active ingredient and a pharmaceutically acceptable carrier and/or additive. The process for the preparation of said pharmaceutical compositions as well as the therapeutic use thereof for the treatment of multiple sclerosis are also within the scope of the invention.
    Type: Application
    Filed: November 18, 2004
    Publication date: May 31, 2007
    Applicant: RICHTER GEDEON VEGYESZETI GYAR RT.
    Inventors: György Balogh, Janos Illes, Andreas Boros, Gaborne Forrai, Akosne Szekely
  • Patent number: 7199257
    Abstract: A new process is disclosed for the synthesis of racemic or optically pure N-[4-cyano-3-trifluoro-methyl-phenyl]-3[4-fluorophenyl-sulfonyl]-2-hydroxy-2-methylpropionamide. The process includes the formation of several novel intermediates in the synthesis.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: April 3, 2007
    Assignee: Richter Gedeon Vegyeszeti Gyar RT.
    Inventors: Bela Sörös, Zoltan Tuba, György Galik, Adam Bor, Adam Demeter, Ferenc Trischler, Janos Horvath, Janos Brlik
  • Patent number: 7196195
    Abstract: The object of the present invention are new desloratadine salts of formula I wherein the meaning of X is an acid residue and the meaning of n is 1 or 2, and formula II wherein the meaning of X is a pK <3.5 acid residue.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: March 27, 2007
    Assignee: Richter Gedeon Vegyészeti Gyár RT.
    Inventors: János Fischer, Tamás Fodor, Ferenc Trischler, Jr., legal representative, Tamás Róbert Trischler, legal representative, Gabriel Maria Trischler, legal representative, Sándor Lévai, Endréne Petényi, Ferenc Trischler, deceased
  • Publication number: 20060229297
    Abstract: The present invention relates to new D3 and D2 dopamine receptor subtype preferring ligands of formula (I): wherein R1 and R2 represent independently a substituent selected from hydrogen, alkyl, aryl, cycloalkyl, aroyl, or R1 and R2 may form a heterocyclic ring with the adjacent nitrogen atom; X represents an oxygen or sulphur atom; n is an integer of from 1 to 2, and/or geometric isomers and/or stereoisomers and/or diastereomers and/or salts and/or hydrates and/or solvates thereof, to the processes for producing the same, to pharmaceutical compositions containing the same and to their use in therapy and/or prevention of a condition which requires modulation of dopamine receptors.
    Type: Application
    Filed: January 20, 2006
    Publication date: October 12, 2006
    Applicant: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Eva Csongor, Janos Galambos, Katalin Nogradi, Istvan Vago, Istvan Gyertyan, Bela Kiss, Istvan Laszlovszky, Judit Laszy, Katalin Saghy
  • Patent number: 7094904
    Abstract: A new process is disclosed for the synthesis of fluconazole monohydrate and for crystal modifications of fluconazole which comprises the step of hydrolyzing a silyl ether of the formula (II) ?wherein R2 is hydrogen, or a C1 to C10 alkyl or phenyl group, R3 and R4 independently of each other are a C1 to C10 alkyl or phenyl group in an aqueous solution, preferably at a pH below 3 or above 8.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: August 22, 2006
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Jánosné´ Kreidl née Regina Hegedus, legal representative, Laszlo Czibula, Csaba Szantay, Jenone Farkas, Ida Deutschne Juhasz, Istvan Hegedus, Eva Werkne Papp, Judit Nagyne Bagdy, Agnes Piller, Janos Kreidl, deceased
  • Patent number: 6919355
    Abstract: New Formula (I) compounds are disclosed having NR2B selective NMDA receptor antagonist activity: wherein one of the neighboring R1, R2, R3 and R4 groups is OH or NH2 and the others are each hydrogen , or two of the neighboring R1, R2 R3 and R4 groups in given case together with one or more identical or different additional hetero atom and —CH? and/or —CH2— groups forms a 5-6 membered homo- or heterocyclic ring, preferably pyrrole, pyrazole, imidazole, oxazole, oxo-oxazolidine, or 3-oxo-1,4-oxazine ring, and the other two of R1, R2, R3 and R4 groups are hydrogen atoms, R5 and R6 together with the nitrogen between them form a saturated or unsaturated, 4-6 membered heterocyclic ring, which is substituted by hydroxy group, and/or in given case phenyl or phenoxy, phenyl-(C1-C4 alkyl), phenyl-(C1-C4 alkoxy), phenoxy-(C1-C4 alkyl), anilino, phenyl-(C1-C4 alkylamino), [phenyl-(C1-C4 alkyl)]-amino, benzoyl, hydroxy-diphenylmethyl, C1-C4 alkoxycarbonyl-phenoxymethyl or benzhydrylidene group, optionally substitut
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: July 19, 2005
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csilla Horvath, Sandor Farkas, György Domany, Istvan Borza, Gizella Bartane Szalai, Jozsef Nagy, Sandor Kolok
  • Patent number: 6770786
    Abstract: The antifungal agent (E)-N-methyl-N-(1-naphthylmethyl)-6,6-dimethyl-hept-2-ene-4-ynyl-1-amine of formula (I) and acid addition salts thereof are prepared by reacting a chloro-compound of formula (IIIb) with a secondary amine of formula (II) in an aliphatic ketone-type solvent in the presence of a base and optionally iodide salt catalyst, and subsequently treating the resulting reaction mixture directly with aqueous hydrochloric acid to precipitate the hydrochloride of the compound of formula (I). The precipitate is separated, and the base of formula (I) can be liberated from the hydrochloride and can be converted into other pharmaceutically acceptable acid addition salts.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: August 3, 2004
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Peter Bod, Laszlo Terdy, Ferenc Trischler, Eva Fekecs, Maria Demeter, Anna Lauko, Gyorgy Domany, Gyorgyi Szabone Komlosi, Katalin Varga
  • Patent number: 6765114
    Abstract: The invention relates to a new process for the synthesis of 1-(aminomethyl)cyclohexyl-acetic acid of formula (I) via the new intermedier 1-(nitromethyl)cyclohexyl-acetic acid derivative of formula (II), wherein R represents hydrogen, benzyl group, diphenylmethyl group or C1-C4 alkyl or alkoxy aromatic ring substituted derivatives thereof.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: July 20, 2004
    Assignee: Richter Gedeon Vegyeszeti Gyar RT.
    Inventors: Tibor Gizur, Zoltanné Lengyel, Krisztina Szalai
  • Publication number: 20040106804
    Abstract: A new process is disclosed for the synthesis of fluconazole monohydrate and for crystal modifications of fluconazole which comprises the step of hydrolyzing a silyl ether of the formula (II) 1
    Type: Application
    Filed: September 22, 2003
    Publication date: June 3, 2004
    Applicant: RICHTER GEDEON VEGYESZETI GYAR RT.
    Inventors: Janos Kreidl, Laszlo Czibula, Csaba Szantay, Jenone Farkas, Ida Deutschne Juhasz, Istvan Hegedus, Eva Werkne Papp, Judit Nagyne Bagdy, Agnes Piller, Janosne Kreidl nee Regina Hegedus
  • Patent number: 6710183
    Abstract: A Process is disclosed for preparing a compound of the Formula (I) which comprises the steps of: (a) detritylating a compound of the Formula (III)  with 0.1 to 1 equivalent of potassium hydroxide in a C1 to C4 straight chain alcohol solvent to obtain a reaction mixture containing the compound of the Formula (I), (b) changing the C1 to C4 straight chain alcohol solvent in the reaction mixture to an aprotic solvent or a weakly protic solvent, and (c) following step (b) crystallizing out the compound of the Formula (I) from the reaction mixture.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: March 23, 2004
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Janos Fischer, Ildiko Ballo, Endrene Petenyi, Janos Kreidl, Laszlo Czibula, Andras Nemes, Ida Deutschne Juhasz, Eva Werkne Papp, Judit Nagyne Bagdy, Istvan Hegedüs, Jenöme Farkas
  • Patent number: 6656921
    Abstract: The invention relates to pharmaceutical compositions against peptic ulcer as well as to a method of treating peptic ulcer. The compositions contain and the method of treatment employs zinc hyaluronate as an active ingredient having a molecular weight in the range of 500,000 to 1,200,000 daltons.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: December 2, 2003
    Assignee: Richter Gedeon Vegyeszeti Gyar RT.
    Inventors: Janos Illes, Judit Matuz, Erzsabet Neszmelyi, Gaborne Forrai, Bela Stefko, Katalin Saghy, Laszlo Szporny
  • Patent number: 6657062
    Abstract: A process is disclosed for the preparation of compounds of the formula (I), which compounds are useful as intermediates for the preparation of paroxetine of formula(V).
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: December 2, 2003
    Assignee: Richter Gedeon Vegyesseti Gyar Rt.
    Inventors: Janos Kreidl, Laszlo Czibula, Andras Nemes, Ida Deutschne Juhasz, Eva Werkne Papp, Juidit Nagyne Bagdy, Laszlo Dobay, Istvan Hegedus, Kalman Harsanyi, Istvan Borza
  • Publication number: 20030215902
    Abstract: The invention relates to a process for the production of compounds of general formula (I), wherein R1 is a —NH-tert-butyl group or a 4-methyl-piperidino group, by bioconversion of compounds of general formula (II), wherein R1 is as described above, using a biocatalyst having steroid-&Dgr;1-dehydrogenase enzyme activity, wherein the activity of the enzyme needed for the bioconversion is produced by induction.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 20, 2003
    Applicant: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Katalin Olasz, Agnes Pecsne Razso, Istvan Bartho, Monika Berta Herine, Tamas Devenyi, Gabor Hantos
  • Publication number: 20030199552
    Abstract: New Formula (I) compounds are disclosed having NR2B selective NMDA receptor antagonist activity 1
    Type: Application
    Filed: April 11, 2003
    Publication date: October 23, 2003
    Applicant: RICHTER GEDEON VEGYESZETI GYAR RT.
    Inventors: Csilla Horvath, Sandor Farkas, Gyorgy Domany, Istvan Borza, Gizella Bartane Szalai, Jozsef Nagy, Sandor Kolok
  • Patent number: 6608043
    Abstract: The present invention provides an agent for treatment of arthritic diseases such as rheumatoid arthritis that has for its active ingredient a complex of hyaluronic acid and zinc. This complex synergistically inhibits proliferation of synovial cells and suppresses matrix metalloproteinase MMP-9, which is produced by synovial cells, as compared with its constituents, hyaluronic acid and zinc, alone.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: August 19, 2003
    Assignees: Takata Seiyaku Co., Ltd., Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Isao Serizawa, Keisei Maekawa, Janos Illes, Erzsebet Neszmeli
  • Patent number: 6596874
    Abstract: The invention relates to a novel process of amalodipine benzenesulphonate of formula (I) by reacting a new 2-[/2-carboxy-benzoyl)-aminoethoxy/methyl/]-4-(2-chlorophenyl)-3-ethoxycarbonyl-5-methoxycarbonyl-6-methyl-1,4-di-hydropyridine derivative of general formula (II) wherein X represents hydrogen or alkali metal or alkali earth metal or quaternary ammonium—with benzenesulphonic acid.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: July 22, 2003
    Assignee: Richter Gedeon Vegyeszeti Gyar RT.
    Inventors: Janos Fischer, Katalin Szöke, Laszlo Dobay, Sandor Leval
  • Patent number: 6583298
    Abstract: The invention relates to a new process for the synthesis of 17&bgr;-hydroxy-17&agr;-methyl-2-oxa-5&agr;-androstane-3-one of formula (I).
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: June 24, 2003
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csaba Santa, Zoltan Tuba, Sandor Maho, Janos Szeles, Katalin Ferenczi, Peter Horvath, Krisztina Lancos, Tamas Mester, Arpad Trompler
  • Patent number: 6458774
    Abstract: Complexes of deprotonated hyaluronic acid with 3d metal ions of the 4th period of the Periodic Table and compositions containing these complexes as active ingredients or carriers. A process for the preparation of the complexes and compositions (pharmaceutical and cosmetic compositions) containing these complexes as active ingredients are disclosed in which zinc or cobalt (II) hyaluronate is preferably used as active ingredient.
    Type: Grant
    Filed: November 25, 1994
    Date of Patent: October 1, 2002
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Kalman Burger, Ivan Rethey, Bela Stefko, Istvan Gebhardt, Arpadne Kiraly, Geza Takacsi Nagy, Janos Illes, Erzsebet Neszmelyi, Istvan Racz, Victoria Varkonyi