Patents by Inventor János Szulágyi

János Szulágyi 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: 8394993
    Abstract: The invention relates to a process for the preparation of cyclopropyl benzyl ketone compounds of formula (II) wherein R1 represents fluorine or chlorine atom or C1-4 alkoxy group, by the reaction of a Grignard reagent, obtained from the reaction of compound of formula (V), wherein X represents chlorine or fluorine atom, with the compound of formula (IV), wherein R2 represents C1-4 alkyl group, having a straight or branched chain. The process can be applied preferably on industrial scale. Compound of formula (II), wherein R represents a fluorine atom in position 2 is an intermediate of the preparation process of prasugrel, which is a platelet inhibitor used in the therapy.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: March 12, 2013
    Assignee: Egis Gyogyszergyar Nyilvanosan Mukodo Reszvenytarsasag
    Inventors: Tibor Mezei, Gyula Lukács, Enikó Molnár, József Barkóczy, Balázs Volk, Márta Porcs-Makkay, János Szulágyi, Mária Vajjon
  • Publication number: 20110040093
    Abstract: The invention relates to a process for the preparation of compounds of general formula (III), wherein R represents fluorine or chlorine atom and X represents chlorine or bromine atom, by halogenation of cyclopropyl benzyl ketone of general formula (II), wherein R represents fluorine or chlorine atom and the halogenation is carried out in the mixture of aqueous hydrogen halide and aqueous hydrogen peroxide in the presence of a water miscible solvent or in the presence of a phase transfer catalyst; or the halogenation is carried out in the mixture of sulfuric acid and an alkali metal salt of aqueous hydrogen halide. The process can be applied preferably on industrial scale.
    Type: Application
    Filed: November 27, 2008
    Publication date: February 17, 2011
    Inventors: Tibor Mezei, Gyula Lukács, Enikó Molnár, József Barkóczy, Balázs Volk, Márta Porcs-Makkay, János Szulágyi, Mária Vajjon
  • Publication number: 20100274020
    Abstract: The invention relates to a process for the preparation of cyclopropyl benzyl ketone compounds of formula (II) wherein R1 represents fluorine or chlorine atom or C1-4 alkoxy group, by the reaction of a Grignard reagent, obtained from the reaction of compound of formula (V), wherein X represents chlorine or fluorine atom, with the compound of formula (IV), wherein R2 represents C1-4 alkyl group, having a straight or branched chain. The process can be applied preferably on industrial scale. Compound of formula (II), wherein R represents a fluorine atom in position 2 is an intermediate of the preparation process of prasugrel, which is a platelet inhibitor used in the therapy.
    Type: Application
    Filed: November 27, 2008
    Publication date: October 28, 2010
    Inventors: Tibor Mezei, Gyula Lukacs, Eniko Molnar, Jozsef Barkoczy, Balazs Volk, Marta Porcs-Makkay, Janos Szulagyi, Maria Vajjon
  • Patent number: 7307168
    Abstract: The invention relates to a process for the preparation of 3-{2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl}-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one of the Formula (I), and pharmaceutically acceptable acid addition salts thereof by subjecting the oxime of the Formula (II), to ring-closure in the presence of an alkali hydroxide, alkali carbonate or alkali-C1-4 alkoxide in an inert organic solvent, converting the base of the Formula I thus obtained into an acid addition salt or setting free the base of the Formula I from an acid addition salt thereof which comprises reacting a halogen derivative of the general Formula (XIV), (wherein Hal is halogen) with piperidine oxime derivative of the Formula (V), or an acid addition salt thereof in the presence of a base, and using by the ring-closure of the oxime of the Formula II formed a C1-4-alkanol as inert solvent.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: December 11, 2007
    Assignee: EGIS Gyógyszergyár Rt.
    Inventors: László Pongó, József Reiter, Gyula Simig, Gábor Berecz, György Clementis, Péter Slégel, János Szulágyi, László Koncz, Györgyi Vereczkeyné Donáth, Kálmán Nagy, Gyuláné Körtvélyessy
  • Publication number: 20050004141
    Abstract: The invention relates to a process for the preparation of 3-{2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl}-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one of the Formula (I), and pharmaceutically acceptable acid addition salts thereof by subjecting the oxime of the Formula (II), to ring-closure in the presence of an alkali hydroxide, alkali carbonate or alkali-C1-4 alkoxide in an inert organic solvent, converting the base of the Formula I thus obtained into an acid addition salt or setting free the base of the Formula I from an acid addition salt thereof which comprises reacting a halogen derivative of the general Formula (XIV), (wherein Hal is halogen) with piperidine oxime derivative of the Formula (V), or an acid addition salt thereof in the presence of a base, and using by the ring-closure of the oxime of the Formula II formed a C1-4-alkanol as inert solvent.
    Type: Application
    Filed: November 13, 2002
    Publication date: January 6, 2005
    Inventors: Laszlo Pongo, Jozsef Reiter, Gyula Simig, Gabor Berecz, Gyorgy Clementis, Peter Slegel, Janos Szulagyi, Laszlo Koncz, Gyorgyi Donath, Kalman Nagy, Gyulane Kortvelyessy
  • Patent number: 6624201
    Abstract: The invention relates to high purity (1R,2S,4R)-(−)-2-[(2′-{N,N-dimethylamino}-ethoxy)]-2-[phenyl]-1,7,7-tri-[methyl]-bicyclo[2.2.1]heptane and pharmaceutically acceptable acid addition salts thereof containing not more than 0.2% of (1R,3S,4R)-3-[(2′-{N,N-dimethylamino}-ethyl)]-1,7,7-tri-[methyl]-bicyclo[2.2.1]heptane-2-one and/or of a pharmaceutically acceptable acid addition salt thereof. Furthermore the invention is concerned with a process for the preparation of these compounds. Moreover the invention relates to medicaments containing 1 or more of these compounds and their use.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: September 23, 2003
    Assignee: Orion Corporation
    Inventors: Gyula Lukács, Gyula Simig, Tibor Mezei, Zoltán Budai, Márta Porcs-Makkay, György Krasznai, Kálmán Nagy, Györgyi Donáth Vereczkey, Tibor Szabó, Norbert Németh, János Szulágyi
  • Publication number: 20020040164
    Abstract: The invention relates to high purity (1R,2S,4R)-(−)-2-[ (2′-{N,N-dimethylamino}-ethoxy)]-2-[phenyl]-1,7,7-tri-methyl -bicyclo[2.2.1]heptane and pharmaceutically acceptable acid addition salts thereof containing not more than 0.2% of (1R,3S,4R)-3-[(2′-{N,N-dimethylamino}-ethyl)]-1 ,7,7-tri-[methyl]-bicyclo[2.2.1]heptane-2-one and/or of a pharmaceutically acceptable acid addition salt thereof.
    Type: Application
    Filed: October 30, 2001
    Publication date: April 4, 2002
    Inventors: Gyula Lukacs, Gyula Simig, Tibor Mezei, Zoltan Budai, Marta Porcs-Makkay, Gyorgy Krasznai, Kalman Nagy, Gyorgyi Donath Vereczkey, Tibor Szabo, Norbert Nemeth, Janos Szulagyi
  • Patent number: 6335469
    Abstract: The invention relates to high purity (1R,2S,4R)-(−)-2-[(2′-{N,N-dimethylamino}-ethoxy)]-2-[phenyl]-1,7,7-tri-[methyl]-bicyclo[2.2.1]heptane and pharmaceutically acceptable acid addition salts thereof containing not more than 0.2% of (1R,3S,4R)-3-[(2′-{N,N-dimethylamino}-ethyl)]-1,7,7-tri-[methyl]-bicyclo[2.2.1]heptane-2-one and/or of a pharmaceutically acceptable acid addition salt thereof. Furthermore the invention is concerned with a process for the preparation of these compounds. Moreover the invention relates to medicaments containing 1 or more of these compounds and their use.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: January 1, 2002
    Assignee: Orion Corporation
    Inventors: Gyula Lukács, Gyula Simig, Tibor Mezei, Zoltán Budai, Márta Porcs-Makkay, György Krasznai, Kálmán Nagy, Györgyi Donáth Vereczkey, Tibor Szabó, Norbert Németh, János Szulágyi
  • Patent number: 6242386
    Abstract: A process for preparing (1R,2S,4R)-(−)-2-[(2′-[N,N-dimethylamino}-ethoxy)]-2-[phenyl]-1,7,7-tri-[methyl]-bicyclo [2.2.1]heptane and pharmaceutically acceptable acid addition salts thereof with higher yields and higher grades of purity.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: June 5, 2001
    Assignee: Egis Gyógyszergyár Rt.
    Inventors: Gyula Lukács, Gyula Simig, Tibor Mezei, Zoltán Budai, Márta Porcs-Makkay, György Krasznai, Kálmán Nagy, Györgyi Donáth Vereczkey, Tibor Szabó, Norbert Németh, János Szulágyi
  • Patent number: 4806151
    Abstract: According to the present invention there are provided fungicidal compositions comprising as active ingredient in an amount of 0.01-80% by weight a new benzoic acid derivative of the general Formula I ##STR1## wherein R.sub.1 and R.sub.2 stand for hydrogen, C.sub.1-8 alkyl, C.sub.2-8 alkenyl or benzyl;R.sub.3 represents hydrogen, C.sub.1-8 alkyl or C.sub.2-8 alkenyl;R.sub.1 and R.sub.2 may be the same or different; and R.sub.3 may be identical with or different from R.sub.1 and/or R.sub.2.According to the present invention there is provided a process for the preparation of the compounds of the general Formula I which comprises esterifying 4-chloro-3,5-dinitro-benzoic acid with a saturated or unsaturated aliphatic alcohol at a temperature between 20.degree. C. and 120.degree. C.--preferably at 60.degree.-100.degree. C.
    Type: Grant
    Filed: November 19, 1985
    Date of Patent: February 21, 1989
    Assignee: Budapesti Vegyimuvek
    Inventors: Peter Bohus, Ferenc Bihari, Marianna Kertesz nee Szabo, Istvan Kuronya, Peter Boros, Janos Szulagyi, Jeno Meszaros, Gyula Eifert, Agnes Meszaros nee Szekrenyes, Odon S. Jartoo, Laszlo Gondos