Patents Assigned to Richter Gedeon Vegyeszeti Gyar Rt.
  • Patent number: 8314145
    Abstract: The invention relates to a new process for the synthesis of high purity 17?-cyanomethyl-17?-hydroxy-estra-4,9-diene-3-one (further on dienogest) of formula (I) from 3-methoxy-17-hydroxy-estra-2,5(10)-diene of formula (V). The invention relates also to the high purity 17?-cyanomethyl-17?-hydroxy-estra-4,9-diene-3-one and pharmaceutical compositions containing that as active ingredient. The pharmaceutical compositions according to this invention contain high purity dienogest of formula (I) in which the total amount of impurities is less than 0.1%, while the amount of 4-bromo-dienogest is under the detection limit (0.02%) as active ingredient or at least one of the active ingredients and auxiliary materials, which are commonly used in practice, such as carriers, excipients or diluents.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: November 20, 2012
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Lajosné Dancsi, Sándor Mahó, Antal Aranyi, János Horváth
  • Patent number: 8008326
    Abstract: The present invention relates to new 4-benzylidene-piperidin derivatives of formula (I), useful as NMDA, in a particular NR2B subunit containing receptor antagonists and analgesica.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: August 30, 2011
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Istvan Borza, Csilla Horvath, Sandor Farkas, Istvan Gyertyan, Jozsef Nagy, Sandor Kolok, Kornel Galgoczy, Katalin Saghy
  • Patent number: 7858791
    Abstract: A process for preparing cabergoline (I) from ergoline-8?-carboxylic acid ester (XIII) comprising the following steps. (XIII), (XVI), (XVII), (XVIII), (XIX), (I). The present case also relates to the intermediates (XVI), (XVII), (XVIII) and (XIX) as well as the polymorphic amorphous form of Cabergoline (I) and the production thereof.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: December 28, 2010
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Janos Galambos, Laszlo Czibula, Ferenc Sebök, Sandorné Balint, Ferencné Kassai, Gyorgyi Ignaczné Szendrei, Adam Demeter
  • Patent number: 7816546
    Abstract: The invention relates to a process for the synthesis of d-(17?)-13-ethyl-17-hydroxy-18,19-dinorpregn-4-ene-20-yn-3-one-oxime (also known as norelgestromin) via acetylation of d-norgestrel at position 17; oximation of the oxo group at position 3 of the obtained d-(17?)-13-ethyl-17-(acetyloxy)-18,19-dinorpregn-4-ene-20-yn-3-one; and then hydrolyzing the acetyloxy group at position 17 of the obtained d-(17?)-13-ethyl-17-(acetyloxy)-18,19-dinorpregn-4-ene-20-yn-3-oxime derivative, thereby obtaining norelgestromin.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: October 19, 2010
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Zoltán Tuba, Sándor Mahó, János Kiss, Endréné Magyari, László Terdy
  • Publication number: 20100240640
    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: May 12, 2010
    Publication date: September 23, 2010
    Applicant: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Eva Againe Csongor, Janos Galambos, Katalin Nogradi, Istvan Vago, Istvan Gyertyan, Bela Kiss, Istvan Laszlovszky, Judit Laszy, Katalin Saghy
  • Patent number: 7767847
    Abstract: The invention relates to N-(trans-4-isopropylcyclohexylcarbonyl)-D-phenylalanine (nateglinide) in the novel crystalline form “G” and a process for the preparation thereof. A process for the preparation of chirally pure nateglinide by treating a lower alkyl ester thereof with a base to yield an alkali salt and liberating the product from said salt by proper addition of an acid, is also provided. Still another aspect of the invention is a process for the preparation of nateglinide in the crystalline form “H” from other crystalline modifications of nateglinide.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: August 3, 2010
    Assignee: Richter Gedeon Vegyeszeti Gyar RT.
    Inventors: Maria Gazdag, Tibor Gizur, Bela Hegedus, Attila Szemzo, Gabor Tarkanyi, Jozsef Törley, Monika Babjak
  • Patent number: 7737142
    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: Grant
    Filed: January 20, 2006
    Date of Patent: June 15, 2010
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Eva Againe Csongor, Janos Galambos, Katalin Nogradi, Istvan Vago, Istvan Gyertyan, Bela Kiss, Istvan Laszlovszky, Judit Laszy, Katalin Saghy
  • Patent number: 7728042
    Abstract: The invention relates to a liquid crystal gel containing polyoxyethylene-glyceryl-trioleate, propylene-glycol, isopropyl myristate and a hyaluronic acid salt or complex for use in the manufacture of transdermal pharmaceutical compositions and healing cosmetics. The invention also relates to transdermal pharmaceutical composition consists of an estrogen and a progestin component as well as a liquid crystal gel containing polyoxyethylene-glyceryl-trioleate, propylene-glycol, isopropyl myristate and a hyaluronic acid salt or complex. The invention can be applied for transdermal hormone replacement therapy and for other transdermal depending on the active principles included.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: June 1, 2010
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Istvan Eros, Ildiko Pannonhalmine Csoka, Erzsebet Soosne Csanyi, Attila Bodis, Erzsebet Lapis, Erzsebet Francsicsne Czinege, Emoke Kissne Csikos, Janos Illes
  • Patent number: 7723370
    Abstract: The present invention relates to new compounds of formula (I), (I) wherein the meaning of R1 is hydrogen atom, C1-C5 acyl group, benzoyl group or R2—COOR3 group, Y is hydrogen atom or alkali ion, R2 is C1-C4 straight or branched alkylidene group and R3 is hydrogen atom, C1-C4 alkyl group or alkali ion, and/or stereoisomers and/or diastereomers and/or pharmaceutically acceptable salts and/or hydrates and/or solvates thereof, which are suitable for the treatment of pain of acute and chronic inflammation origin as well as postoperative pain and dysmenorrhea. The invention also relates to the process of the synthesis of compounds of formula (I) as well as the pharmaceutical composition containing the same and the use for treatment of pain, inflammation and disorders associated with inflammation.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: May 25, 2010
    Assignee: Richter Gedeon Vegyeszeti Gyar RT.
    Inventors: János Fischer, Istvánné Kis-Varga, György Szabo, János Leibinger
  • Patent number: 7705003
    Abstract: The present invention relates to new dopamine D3 and D2 and serotonin 5-HT1A receptor subtype preferring ligands of formula (I); wherein A represents alkyl, alkenyl, aryl, heteroaryl, cycloalkyl or a group of formula —NR1R2, wherein R1 and R2 represent independently a substituent selected from hydrogen, alkyl, alkenyl, aryl, heteroaryl or cycloalkyl or R1 and R2 form with the adjacent nitrogen atom and optionally with further heteroatom(s) a heterocyclic ring; m is an integer of 0 to 1; n is an integer of 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 pharmacological compositions containing the same and to their use in therapy and/or prevention of a condition which requires modulation of dopamine and/or 5-HT1A receptors.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: April 27, 2010
    Assignee: Richter Gedeon Vegyeszeti Gyar RT.
    Inventors: Eva Againe Csongor, Janos Galambos, Istvan Gyertyan, Bela Kiss, Katalin Saghy, Eva Schmidt, Gyoergy Domany
  • Patent number: 7625935
    Abstract: One object of the invention is high purity butoconazole nitrate of the formula (I) (I) containing maximum 0.1 wt % of chemical impurities, wherein at least 95% of the particles of the substance are below 75 ?m by diameter, whereas at least 99% of the particles are below 250 ?m by diameter, and process for its preparation. A pharmaceutical composition comprising as active ingredient, high purity butoconazole nitrate of specified particle size in admixture with known auxiliaries is also within the scope of the invention.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: December 1, 2009
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Laszlo Czibula, Laszlo Dobay, Eva Werkne Papp, Judit Nagyne Bagdy, Ferenc Sebok
  • Patent number: 7612229
    Abstract: Process for the synthesis of high purity 2-substituted-1-(hydroxy-ethylidene)-1,1-bisphosphonic acid of formula (I), the salts and hydrates thereof—wherein the meaning of R is 3?-pyridyl or 2?-amino-ethylidene group—from compounds of formula (II)—wherein the meaning of R is as described above—or salts and hydrates thereof with phosphorous acid in the presence of methanesulfonic acid using phosphorus pentoxide as reagent and in given case the obtained acid is converted into a salt with base.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: November 3, 2009
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Jozsef Neu, Janos Fischer, Tamas Fodor, Jozsef Törley, Tibor Gizur, Sandor Levai, Adam Demeter, Eva Perenyi
  • Patent number: 7576226
    Abstract: The invention is directed to a process of preparing substantially pure d-(17?)-13-ethyl-17-hydroxy-18,19-dinorpregn-4-ene-20-yn-3-one-3E- and -3Z-oxime isomers, as well as a process for the synthesis of the mixture of isomers and the pure isomers. The invention also relates to substantially pure d-(17?)-13-ethyl-17-hydroxy-18,19-dinorpregn-4-ene20-yn-3-one-3E-oxime and substantially pure d-(17?)-13-ethyl-17-hydroxy-18,19-dinorpregn-4-ene-20-yn-3-one-3Z-oxime isomer. Further aspects of the invention include a composition comprising substantially pure d-(17?)-13-ethyl-17-hydroxy-18,19-dinorpregn-4-ene20-yn-3-one-3E-oxime or substantially pure d-(17?)-13-ethyl-17-hydroxy-18,19-dinorpregn-4-ene-20-yn-3-one-3Z-oxime isomer, and methods of treatment using said compositions.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: August 18, 2009
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Zoltán Tuba, Sándor Mahó, György Keserü, József Kozma, János Horváth, Gábor Balogh
  • Patent number: 7473692
    Abstract: The present invention relates to new D3 dopamine receptor subtype selectice ligands of formula (I) to pharmacological compositions containing the same and to their use in therapy and/or prevention of psychoses (e.g. schizophrenia, schizo-affective disorders, etc), drug (e.g. alcohol, cocaine and nicotine, opioids etc.) abuse, cognitive impairment accompanying schizophrenia, mild-to-moderate cognitive deficits, amnesia, eating disorders (e.g. bulimia nervosa, etc.), attention deficit disorders, hyperactivity disorders in children, psychotic depression, mania, paranoid and delusional disorders, dyskinetic disorders (e.g. Parkinson's diseases, neuroleptic induced Parkinson's dissases, tardive dyskinesias) anxiety, sexual dysfunction, sleep disorders, emesis, aggression, autism, pain ophthalmological diseases (e.g. glaucoma etc.).
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: January 6, 2009
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: János Galambos, Katalin Nógrádi, Éva Ágainé Csongor, György Miklós Keserü, István Vágó, György Domány, Béla Kiss, István Gyertyán, István Laszlovszky, Judit Laszy
  • Patent number: 7390899
    Abstract: The present invention relates to a new process for the synthesis of high purity 3,5-diamino-6-(2,3-dichlorophenyl)-1,2,4-triazine of formula (I) using 2,3-dichlorobenzoyl cyanide and an aminoguanidine salt as starting materials. 2,3-dichlorobenzoyl cyanide is reacted with 1-2 mol equivalent of aminoguanidine salt in 3-6 mol equivalent of methanesulfonic acid, then the obtained adduct of formula (IV) is transformed without isolation into the product with magnesium oxide.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: June 24, 2008
    Assignee: Richter Gedeon Vegyeszeti Gyar. RT.
    Inventors: Jozsef Neu, Tibor Gizur, Jozsef Törley, Janos Csabai, Ferenc Vegh, Peter Kalvin, Gabor Tarkanyi
  • Patent number: 7378431
    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 nitrogen atom, or pharmaceutically acceptable salts thereof formed with acids or bases.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: May 27, 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: 7375116
    Abstract: Compounds having NR2B selective NMDA receptor antagonist activity are disclosed of the formula (I) where two of the neighboring R1, R2, R3 and R4 groups form an imidazole 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 29, 2004
    Date of Patent: May 20, 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: 20080103140
    Abstract: The present invention relates to new dopamine D3 and D2 and serotonin 5-HT1A receptor subtype preferring ligands of formula (I); wherein A represents alkyl, alkenyl, aryl, heteroaryl, cycloalkyl or a group of formula —NR1R2, wherein R1 and R2 represent independently a substituent selected from hydrogen, alkyl, alkenyl, aryl, heteroaryl or cycloalkyl or R1 and R2 form with the adjacent nitrogen atom and optionally with further heteroatom(s) a heterocyclic ring; m is an integer of 0 to 1; n is an integer of 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 pharmacological compositions containing the same and to their use in therapy and/or prevention of a condition which requires modulation of dopamine and/or 5-HT1A receptors.
    Type: Application
    Filed: February 2, 2006
    Publication date: May 1, 2008
    Applicant: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Eva Againe Csongor, Gyorgy Domany, Janos Galambos, Istvan Gyertyan, Bela Kiss, Katalin Saghy, Eva Schmidt
  • 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