Patents by Inventor Istvan Hermecz

Istvan Hermecz 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: 7619082
    Abstract: The invention relates to a process for the preparation of a compound of the formula (I) by reacting a compound of the formula (II) with a compound of the formula (III) characterized by dissolving the compounds of the formula (II) and formula (III) in a water-inmiscible organic solvent in the presence of a phase transfer catalyst, reacting with a.) an aqeuos solution of a base, or b.) a base in solid form directly and if desired transforming the compound of formula (I) thus obtained into its salt.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: November 17, 2009
    Assignee: sanofi-aventis
    Inventors: Eva Csikós, Csaba Gönczi, Felix Hajdú, István Hermecz, Gergely Héja, Gergelyné Héja, Csilla Majláth, Lajos Nagy, Andrea Sántáné Csutor, Tiborné Szomor, Györgyné Szvoboda
  • Publication number: 20070249669
    Abstract: The invention relates to the crystalline and amorphous forms of the desmotrope of general formula IB and its salts and solvates, and their preparation.
    Type: Application
    Filed: October 18, 2006
    Publication date: October 25, 2007
    Applicant: sanofi-aventis
    Inventors: Zoltan Finta, Istvan Hermecz, Gergely Heja, Agnes Horvath, Gyulane Kiss, Miklos Morvai, Benjamin Podanyi, Judit Sipos, Anna Szabo, Arpadne Vasvari, Erika Varkonyine Schlovicsko
  • Patent number: 6884895
    Abstract: The invention relates to a process for the preparation of spiro[(4-cyclohexanone)-[3H]indol]-2?[1?H]-one derivatives of the general formula I wherein R1 and R2 independently stand for hydrogen, C1-4alkyl, C1-4alkoxy, C1-4alkylthio, C1-4polyfluoroalkyl, C1-4polyfluoroalkoxy, C3-7cycloalkyloxy, C3-7cycloalkylthio, phenoxy, benzyloxy or nitro group—, characterized by reacting an indolin-2-one derivative of the general formula II wherein R1 and R2 are as defined above—with a compound capable for introducing a protective group, selected from 2-tetrahydropyranyl, 1-diethoxy-methylene or C1-4alkoxycarbonylethyl group, coupling the compound of general formula III, thus obtained—wherein R1 and R2 are as defined above and A stands for a protective group, selected from 2-tetrahydropyranyl, 1-diethoxy-methylene or C1-4alkoxycarbonylethyl group—with an acrylic acid C1-4ester, cyclizing the resulting compound of the general formula IV wherein R1, R2 and A are as defined above, R3 stands for C1-4 alkyl grou
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: April 26, 2005
    Assignee: sanofi-aventis
    Inventors: Csaba Gönczi, Éva Csikós, István Hermecz, Gergely Héja, Árpád Illár, Lajos Nagy, Andrea Sántáné Csutor, Attila Simon, Kálmán Simon, Ágota Smelkóné Esek, Tiborné Szomor, Györgyné Szvoboda
  • Publication number: 20040225124
    Abstract: The invention relates to a process for the preparation of a compound of the formula (I) by reacting a compound of the formula (II) with a compound of the formula (III) characterised by dissolving the compounds of the formula (II) and formula (III) in a water-inmiscible organic solvent in the presence of a phase transfer catalyst, reacting with a.) an aqeuos solution of a base, or b.) a base in solid form directly and if desired transforming the compound of formula (I) thus obtained into its salt.
    Type: Application
    Filed: June 7, 2004
    Publication date: November 11, 2004
    Inventors: Eva Csikos, Csaba Gonczi, Felix Hajdu, Istvan Hermecz, Gergely Heja, Gergelyne Heja, Csilla Majlath, Lajos Nagy, Andrea Csutor Santane, Toborne Szomor, Gyorgyne Szvoboda
  • Publication number: 20040198793
    Abstract: Process for the preparation of a compound of the general formula (I) and pharmaceutically acceptable salts and solvates thereof, (I) characterised by reacting an N-(amino-tioxo-methyl)-1H-indole-2-carboxamide of the general formula (II), with an &agr;-halogen-ketone of the general formula (III), wherein X stands for halogen.
    Type: Application
    Filed: October 6, 2003
    Publication date: October 7, 2004
    Inventors: Sandor Bokotey, Gezane Galambos, Felix Hadju, Istvan Hermecz, Agnes Horvath, Maria Uzsoki, Gyulane Kiss, Lajos Nagy, Benjamin Podanyi, Attila Simon, Judit Sipos, Agota Esek Smelkone, Anna Szabo, Arpadne Vasvari
  • Publication number: 20040039203
    Abstract: New process for the preparation of 1,5-disubstituted-3-amino-1,2,4-triazoles of the general formula (I), wherein the meaning of R is C1-5alkyl group; C3-13cycloalkyl-C0-4alkyl group, optionally substituted by one or more C1-3alkyl group; phenyl-C0-2alkyl-, (CH2)n-morpholino-, piperidino-, pyrrolidino- or piperazino-group, optionally substituted by one or more halogen atom, C1-3alkyl group, C1-3alkoxy group, n is 1-5, R1, R2, R3, and R4 stand independently for hydrogen, halogen, C1-6alkyl group, C1-3alkoxy group or trifuluoromethyl group, with the proviso that of the substituents R1, R2, R3, and R4 at least one stands for hydrogen.
    Type: Application
    Filed: August 4, 2003
    Publication date: February 26, 2004
    Inventors: Sandor Bokotey, Eva Csikos, Csaba Gonczi, Felix Hajdu, Istvan Hermecz, Gergely Heja, Benjamin Pdanyi, Andrea Santane Csutor, Tiborne Szomor, Gyorgyne Szvoboda
  • Publication number: 20030212278
    Abstract: The invention relates to a process for the preparation of spiro[(4-cyclohexanone)-[3H]indol]-2′[1′H]-one derivatives of the general formula I 1
    Type: Application
    Filed: April 8, 2003
    Publication date: November 13, 2003
    Inventors: Csaba Gonczi, Eva Csikos, Istvan Hermecz, Gergely Heja, Arpad Illar, Lajos Nagy, Andrea Santane Csutor, Attila Simon, Kalman Simon, Agota Smelkone Esek, Tiborne Szomor, Gyorgyne Szvoboda
  • Publication number: 20030176475
    Abstract: New salts of the general formula (I), their solvates, polymorphs and pseudo polymorphs wherein X stands for ethanolamine, diethanolamine or diethylamine.
    Type: Application
    Filed: February 19, 2003
    Publication date: September 18, 2003
    Inventors: Istvan Hermecz, Agnes Horvath, Gyulane Kiss, Miklos Morvai, Benjamin Podanyi, Kalman Simon, Judit Sipos, Agota Smelkone Esek, Anna Szabo, Arpadne Vasvari
  • Patent number: 6600039
    Abstract: The invention relates to a process for the preparation of a compound of formula (I) and the salts thereof by reacting the compound of formula (II) with the compound of formula (III), which comprises carrying out the reaction in dimethyl sulfoxide, at a temperature between 10° C. and 40° C., preferably at room temperature and transforming the resulting base of formula (I), if desired, into its salt by a method known per se.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: July 29, 2003
    Assignee: Sanofi-Synthelabo
    Inventors: Gergely Héja, Éva Csikós, Tünde Erösné Takácsy, Csaba Gönczi, Judit Halász, István Hermecz, Csilla Majláth, Lajos Nagy, Andrea Sántáné Csutor, Péter Sárosi, Kálmán Simon, Tiborné Szomor, Györgyné Szvoboda
  • Publication number: 20030114449
    Abstract: Orally active compounds of general formula (I) wherein R1 is methyl, ethyl or 2-morpholino-ethyl group, R2 is piperidino, morpholino or 4-methyl-piperazinyl group, n is 2 or 3 and their salts, solvates and hydrates.
    Type: Application
    Filed: October 7, 2002
    Publication date: June 19, 2003
    Inventors: Peter Aranyi, Sandor Batori, Stephane Dessilla, Istvan Hermecz, Zoltan Kapui, Ferenc Levai, Endre Mikus, Marc Pascal, Lajos T. Nagy, Bruno Simonot, Katalin Urban Szabo, Marton Varga, Lelle Vasvarine Debreczy
  • Patent number: 6573386
    Abstract: The invention relates to a process for the preparation of spiro [(4-cyclohexanone)-[3H]indol]-2′[1′H]-one derivatives of general formula I—wherein R1 and R2 independently stand for hydrogen, C1-4alkyl, C1-4alkoxy, C1-4alkylthio, C1-4polyfluoroalkyl, C1-4polyfluoroalkoxy, C3-7cycloalkyloxy, C3-7cycloalkylthio, phenoxy, benzyloxy or nitro group—, characterized by reacting an indolin-2-one derivative of general formula II—wherein R1 and R2 are as defined above—with a compound capable for introducing a protective group, coupling the compound of general formula III, thus obtained—wherein R1 and R2 are as defined above and A stands for a protective group—with acrylic acid C1-4ester; cyclizing the resulting compound of general formula IV—wherein R1 and R2 are as defined above—with a compound capable for introducing a protective group, coupling the compound of formula III thus obtained,—wherein R1 and R2 are as defined abo
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: June 3, 2003
    Assignee: Sanofi-Synthelabo
    Inventors: Csaba Gönczi, Éva Csikós, István Hermecz, Gergely Héja, Árpád Illár, Lajos Nagy, Andrea Sántáné Csutor, Attila Simon, Kálmán Simon, Ágota Smelkóné Esek, Tiborné Szomor, Györgyné Szvoboda
  • Patent number: 6548702
    Abstract: The invention relates to a process for the preparation of 2-methoxy-4-(N-t-butylaminocarbonyl)benzenesulfonyl chloride by sulfonating m-hydroxybenzoic acid, methylating the hydroxy group of the resulting sulfonic acid or its salt, transforming the carboxylic acid group and the sulfonic acid group to acid chloride groups and reacting the 4-chlorosulfonyl-3-methoxy-benzoyl chloride with t-butylamine, which comprises carrying out the sulfonation of the 3-methoxy-benzoic acid of general formula (II) with 96% sulfuric acid, separating the resulting 3-hydroxy-4-sulfobenzoic acid of general formula (III) in the form of its salt of general formula (IV), wherein Z stands for alkali metal or ammonium group, methylating the compound of general formula (IV) in the presence of a phase transfer catalyst at a pH value of about 11.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: April 15, 2003
    Assignee: Sanofi-Synthelabo
    Inventors: Csaba Gönczi, Éva Csikós, Félix Hajdú, István Hermecz, Gergely Héja, Gergelyné Héja, Lajos Nagy, Andrea Sántáné Csutor, Kálmán Simon, Ágota Smelkóné Esek, Tiborné Szomor, Györgyné Szvoboda
  • Patent number: 6541643
    Abstract: The invention relates to a process for the preparation of spiro[cis-4-(&bgr;-hydroxyethyloxy)cyclohexane-[3H]indol]-2′[1′H]-one derivatives of the formula (I) wherein R1 and R2 are as defined herein, by reduction of a dispiro[(1,3-dioxolane)-2,4′-cyclohexane-1′3′-[3H]indol]-2″[1″H]-one derivative of general formula (II), wherein R1 and R2 are as defined herein, which comprises carrying out the reduction (a) with sodium cyanoborohydride in the presence of a Lewis acid, or (b) with sodium borohydride in the presence of a strong acid.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: April 1, 2003
    Assignee: Sanofi-Synthelabo
    Inventors: Gergely Héja, Éva Csikós, Csaba Gönczi, Judit Halász, Félix Hajdú, István Hermecz, László Kis, Lajos Nagy, Andrea Sántáné Csutor, Kálmán Simon, Tiborné Szomor, Györgyné Szvoboda
  • Patent number: 6521764
    Abstract: The invention relates to a process for the preparation of Fumagillin by liberation from its salt characterized by reacting Fumagillin dicyclohexylamine salt with an organic acid in alcoholic medium.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: February 18, 2003
    Assignee: Sanofi-Synthelabo
    Inventors: Gyula Farkas, Andrea Györbiró, István Hermecz, Kálmán Simon, Anna Szabó, Árpádné Vasvári
  • Patent number: 6482959
    Abstract: A process for the preparation of &agr;,&bgr;-unsaturated alcohols of general formula (I), wherein R means an alkyl group of 1-4 carbon atoms, or benzoyloxy group optionally substituted with a phenyl group; R1 means a hydrogen atom or an alkyl group of 1-4 carbon atoms, R2 means a hydrogen atom or an alkyl group of 1-4 carbon atoms; R3 means an alkyl group of 1-6 carbon atoms optionally substituted by phenyl group or cycloalkyl group of 5-7 carbon atoms; or a phenoxy group optionally substituted by a halogen atom, or a cycloalkyl group of 5-7 carbon atoms; R4 means a hydrogen atom or a halogen atom whereby at &agr;,&bgr;-unsaturated ketones of general formula (II) wherein the meanings of R, R1, R2, R3, and R4 are as given above—is diastereoselectively reduced with a borohydride type compound in an aprotic solvent, in the presence of an inorganic substance dissolublein the reaction mixture and having particle size from 0.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: November 19, 2002
    Assignee: Chinoin Gyógyszer és Vegyészeti Termékek Gyára Rt.
    Inventors: Kardos Zsuzsanna Baloghne, Nandor Benno, Povarny Magdonla Beresne, Gyula Dalmadi, Katalin Ebinger, Laszlo Forro, Geza Galambos, Felix Hajdu, Istvan Hermecz, Geza Lukacs, Karoly Mozsolits, Szigeti Katalin Polikne, Judit Sebestyen, Tobor Szabo, Zoltan Szeverenyi, Ervin Vajda, Gabor Vankai, Pal Vofely
  • Patent number: 6191161
    Abstract: The present invention relates to new prolylendopeptidase inhibitors of general formula (I).
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: February 20, 2001
    Assignee: Chinoin Gyogyszer es Vegyeszeti
    Inventors: Károly Kánai, Sándor Erdö, Andrea Szappanos, Judit Bence, István Hermecz, Györgyné Szvoboda, Sándor Bátori, Gergely Héja, Mariá Balogh, Ágnes Horváth, Judit Sipos, Bodor Veronika Bártáne, Zsolt Párkányi, Viktor Lakics, Péter Molnár
  • Patent number: 6069269
    Abstract: New process for the preparation of prostaglandin E1 of formula (I) starting from the compound of formula (II).
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: May 30, 2000
    Assignee: CHINOIN Gyogyszer es Vegyeszeti
    Inventors: Gyula Dalmadi, Felix Hajdu, Istvan Hermecz, Karoly Mozsolits, Tibor Szabo, Zoltan Szeverenyi, Ervin Vajda
  • Patent number: 5589513
    Abstract: The invention relates to two phase pharmaceutical compositions comprising as active ingredient a MAO inhibitor and an uptake inhibitor together with usual pharmaceutical auxiliaries. The compositions can be used for the treatment of neurodegenerative diseases. As active ingredient optionally N-(1-phenyl-isopropyl)-N-methyl-propinylamine or N-(4-fluoro-phenyl)-isoprop-1-yl-N-methyl-propinylamine or their salts, optically active isomers or metabolites are used both as MAO inhibitor and as uptake inhibitor.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: December 31, 1996
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.
    Inventors: Kalman Magyar, Jozsef Gaal, Istvan Sziraki, Jozsef Lengyel, Anna Z. Szabo, Katalin Marmarosi, Istvan Hermecz, Istvan Szatmari, Zoltan Torok, Peter Kormoczy
  • Patent number: 5475000
    Abstract: 4-oxo-4H-pyrido[1,2-a]-pyrimidines are disclosed of the formula ##STR1## wherein R is a C.sub.1-6 alkyl, C.sub.3-6 alkenyl, C.sub.3-6 alkynyl, C.sub.3-7 cycloalkyl, --(CH.sub.2).sub.n --COOR.sup.3 wherein R.sup.3 is C.sub.1 to C.sub.4 alkyl and n is 0 or 1 or a C.sub.7-8 aralkyl group, optionally substituted by one or more halogen atom(s), or by a nitro-group, R.sup.1 is a hydrogen atom or a C.sub.1-4 alkyl group, and salts thereof, as well as a process for their preparation, and pharmaceutical compositions containing them. These compounds are therapeutically useful as gastroprotectives in the treatment and prevention of ulcer.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: December 12, 1995
    Assignee: Chinoin Gyogyszer-es Vegyeszeti Termekek Gyara Rt.
    Inventors: Istvan Hermecz, Jozsef Knoll, Judit Sipos, Klara Gyires, Agnes Horvath, Lelle Vasvari, Laszlo Tardos, Maria Balogh, Zoltan Kapui, Ilona Papp
  • Patent number: 5466833
    Abstract: The invention relates to a novel process for the preparation of 13,14-dihydro-15 (R)-17-phenyl-18,19,20-trinor-PGF.sub.2.alpha. isopropyl ester of the formula (I)--wherein R stands for saturated or unsaturated straight, branched or cyclic C.sub.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: November 14, 1995
    Assignees: Kabi Pharmacia AB, Chinoin Ltd.
    Inventors: Jozsef Ivanics, Tibor Szabo, Istvan Hermecz, Gyula Dalmadi, Jozsefne Ivanics, Gaborne Kovacs, Resul Bahram