Patents by Inventor Katalin Szemeredi

Katalin Szemeredi 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: 5889018
    Abstract: The invention relates to anxiolytic pharmaceutical compositions comprising as active ingredient 1-sytrylisoquinoline derivatives of general formula (I), whereinn is 1, 2, 3 or 4;R may be the same or different and represent(s) hydrogen, lower alkyl, lower alkoxy or hydroxy, or two substituents R attached to adjacent carbon atoms may form together an alkylenedioxy group;R.sup.1 represents hydrogen or lower alkyl, andAr stands for an optionally substituted aryl or heteroaryl,Some of the compounds of general formula (I) is known, but the majority thereof has not so far described in the literature.The invention also encompasses the preparation of the new compounds of general formula (I), which comprises reacting a compound of general formula (II) with an aldehyde or general formula (III) in the presence of a condensing agent or an acidic catalyst.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: March 30, 1999
    Assignee: Egis Gyogyszergyar RT.
    Inventors: Gyula Balogh, deceased, Imre Doman, Gabor Blasko, Gyula Simig, Erzsebet Kovacs nee Kaszab, Istvan Gyertyan, Andras Egyed, Istvan Gacsalyi, Andras Bilkei-Gorzo, Katalin Pallagi, Katalin Szemeredi, Klara Kazo nee Daroczi
  • Patent number: 5716986
    Abstract: This invention relates to new oxaindene derivatives, a process for the preparation thereof and pharmaceutical compositions comprising the same.The compounds according to the invention are characterized by the general formula (1) ##STR1## wherein R.sup.1 represents lower C.sub.1-4 alkyl, lower C.sub.1-4 alkoxy or lower C.sub.3-6 cycloalkyl,R.sup.2 stands for hydrogen, lower C.sub.1-4 alkyl or lower C.sub.3-6 cycloalkyl,R.sup.3 stands for hydrogen, lower C.sub.1-4 alkyl, lower C.sub.1-4 alkoxy or benzyloxy,X denotes hydrogen, an aliphatic C.sub.1-4 -acyl or benzoyl or naphthoyl group, optionally substituted by 1 or more nitro or C.sub.1-4 -alkoxy group(s) or a group of the formula R.sup.5 R.sup.6 N--R.sup.7 --, wherein R.sup.7 represents lower C.sub.1-4 alkylene and R.sup.5 and R.sup.6 each represent lower C.sub.1-4 alkyl, or R.sup.5 and R.sup.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: February 10, 1998
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Csaba Szantay, Lajos Novak, Peter Kovacs, Klara Gado, Gabor Gigler, Julianna Takacs nee Bitai, Andras Egyed, Daniel Bozsing, Gyorgy Pirok, Katalin Szemeredi, Margit Csorgo, Sandor Drabant, Gabor Blasko, Gyula Simig, Gabor Kovacs
  • Patent number: 5652270
    Abstract: The invention refers to a pharmaceutical composition, a process for the preparation thereof and a novel medical use of bicycloheptane derivatives. The pharmaceutical compositions of the invention comprise a bicycloheptane derivative of the formula I ##STR1## wherein said derivative is as defined in the specification herein. The pharmaceutical compositions of the invention are suitable for the treatment of diseases and disorders that are connected with the influence on the cholecystokinin system, especially for preventing the spastic contraction of the gallbladder.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: July 29, 1997
    Assignee: Egis Gyogyszergyar RT
    Inventors: Zoltan Budai, Istvan Gacsalyi, Gabor Szenasi, Tibor Mezei, Aniko Kovacs, Gabor Blasko, Katalin Szemeredi, Gyula Simig, Lujza Petocz, Klara Reiter nee Esses
  • Patent number: 5597822
    Abstract: The invention refers to pharmaceutical compositions for the prevention and/or treatment of gastrointestinal diseases connected with infections caused by Helicobacter pylori and a method for the treatment of such diseases.The pharmaceutical composition of the invention comprises as active ingredient a cyclic ketone derivative of the formula I ##STR1## wherein and R.sup.1 mean independently hydrogen or halo;R.sup.0 stands for hydrogen or a C.sub.1-4 alkoxy group;R.sup.2 and R.sup.3 independently represent hydrogen; a straight or branched chain C.sub.1-8 alkyl optionally substituted by a dimethylamino group; a C.sub.2-6 alkenyl or a C.sub.3-7 cycloalkyl group; orR.sup.2 and R.sup.3 together with the adjacent nitrogen atom form a 6-membered heterocyclic group containing an additional nitrogen atom that may bear a phenyl group optionally substituted by a C.sub.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: January 28, 1997
    Assignee: Egis Pharmaceutical
    Inventors: Eniko Szirt nee Kislelly, Zoltan Budai, Tibor Mezei, Gabor Blasko, Klara Kazo nee Daroczi, Andras Egyed, Gabor Gigler, Marton Fekete, Klara Reiter nee Esses, Gyula Simig, Katalin Szemeredi
  • Patent number: 5523303
    Abstract: The invention relates to novel, pharmaceutically active trisubstituted cycloalkane derivatives, a process for the preparation thereof and pharmaceutical compositions comprising the same. The invention also encompasses the use of the said cycloalkane derivatives for the treatment of diseases and for the preparation of pharmaceutical compositions suitable for the treatment of diseases.The compounds according to the invention are characterized by the general formula (I), ##STR1## wherein R represents hydrogen, C.sub.1-4 alkyl or hydroxyl,R.sup.1 stands for C.sub.1-12 alkyl,R.sup.2 and R.sup.3 each represents hydrogen, C.sub.1-12 alkyl or C.sub.2-12 alkenyl, orR.sup.2 and R.sup.3 together with the adjacent nitrogen atom form a 4- to 7-membered ring optionally comprising an oxygen, sulfur or a further nitrogen atom, which latter may carry a phenyl, benzyl or C.sub.1-4 alkyl substituent,R.sup.4 and R.sup.5 each stands for hydrogen, halogen or C.sub.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: June 4, 1996
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Judit Bajnogel, Gabor Blasko, Zoltan Budai, Andras Egyed, Marton Fekete, Erika Karaffa, Tibor Mezei, Klara Reiter nee Esses, Gyula Simig, Katalin Szemeredi, Eniko Szirt nee Kiszelly
  • Patent number: 5486528
    Abstract: Novel basic ether of general formula (I), ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, halogen or C.sub.1-4 alkoxy, or together they represent a 3,4-methylenedioxy group,R stands for C.sub.1-8 alkyl,R.sup.3 represents hydrogen, C.sub.1-4 alkyl or hydroxy,A is a valency bond or methylene group,R.sup.4 and R.sup.5 are independently hydrogen, C.sub.1-12 alkyl or C.sub.1-12 alkenyl, orR.sup.4 and R.sup.5 form together with the adjacent nitrogen atom 1-pyrrolidinyl, 1-piperidinyl, morpholino or 1-piperazinyl groups, stereo and optically active isomers and their possible mixtures, acid-addition salts and quaternary ammonium derivatives thereof. The basic ethers have antiulceric and anxiolytic activities.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: January 23, 1996
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Judit Bajnogel, Gabor Blasko, Zoltan Budai, Eva Schmidt, Andras Egyed, Marton Fekete, Istvan Gacsalyi, Istvan Gyertyan, Tibor Mezei, Kalara Reiter nee Esses, Gyula Simig, Katalin Szemeredi, Enik Szirt nee Kiszelly
  • Patent number: 5439940
    Abstract: The invention relates to novel, pharmaceutically active benz[e]indene derivatives, a process for the preparation thereof, pharmaceutical compositions comprising the same, further to the use of the said benz[e]indene derivatives in the treatment of certain diseases and in the preparation of pharmaceutical compositions suitable for the treatment of said diseases.The new benz[e]indene derivatives according to the invention correspond to the general formula ##STR1## wherein A represents a group of the formula alk-NR.sup.1 R.sup.2, wherein alk represents a C.sub.2-7 alkylene group optionally carrying a hydroxy substituent,R.sup.1 and R.sup.2 are independently hydrogen, C.sub.1-7 alkyl, C.sub.2-7 alkenyl, C.sub.2-7 alkynyl, mono(C.sub.1-7)alkylamino(C.sub.1-7)alkyl, di(C.sub.1-7)alkylamino(C.sub.1-7)alkyl or C.sub.3-7 cycloalkyl; orR.sup.1 and R.sup.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: August 8, 1995
    Assignee: EGIS Gyogyszergyar Rt.
    Inventors: Klara Reiter nee Eszes, Zoltan Budai, Tibor Mezei, Gabor Blasko, Gyula Simig, Istvan Gyertyan, Luiza Petocz, Marton Fekete, Katalin Szemeredi, Istvan Gacsalyi, Gabor Gigler, Ludmilla Rohacas nee Zamkovaja, Maria Szecsey nee Hegedus, Eniko Szirt nee Kiszelly
  • Patent number: 5395934
    Abstract: Racemic or optically active new 3(2H)-pyridazinone derivatives, a process for the preparation thereof, pharmaceutical compositions comprising the same, to the use of the said 3(2H)-pyridazinone derivatives for the treatment of diseases and for the preparation of pharmaceutical compositions suitable for the treatment of diseases.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: March 7, 1995
    Assignee: EGIS Gyogyszergyar
    Inventors: Peter Matyus, Klara Czako, Ildiko Varga, Andrea Jednakovics, Agnes Papp, Ilona Bodi, Gyorgy Rabloczky, Andras Varro, Laszlo Jaszlits, Aniko Miklos, Luca Levay, Gvorgy Schmidt, Marton Fekete, Maria Kurthy, Katalin Szemeredi, Erzsebet Zara
  • Patent number: 5240918
    Abstract: The invention relates to new 2-(substituted imino)-thiazolidines, a process for the preparation thereof, pharmaceutical compositions comprising the same, the use of the said 2-(substituted imino)thiazolidines for the treatment of diseases and for the preparation of pharmaceutical compositions suitable for the treatment of diseases.The new 2-(substituted imino)-thiazolidine derivatives provided by the present invention correspond to the general formula (I), ##STR1## wherein R.sup.1 and R.sup.2 each represent halogen, nitro, C.sub.1-4 alkoxy or C.sub.1-4 alkyl, which latter may optionally carry one or more halogen substituent(s),R.sup.3 and R.sup.4 each represent hydrogen or C.sub.1-4 alkyl,Z denotes oxygen, sulfur or imino, which latter is substituted by a C.sub.1-6 alkyl or a C.sub.1-6 alkenyl group,R.sup.5 stands for hydrogen, C.sub.1-4 alkyl, C.sub.1-4 alkylthio or a group or the formula --NH--R, wherein R represents C.sub.1-6 alkyl, aryl, aralkyl or C.sub.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: August 31, 1993
    Assignee: EGIS Gyogyszergyar
    Inventors: Karoly Lempert, Gyula Hornyak, Jozsef Fetter, Antal Feller, Klara Gaso, Gabor Gigler, Laszlo Kapolnai, Lujza Petocz, Katalin Szemeredi, Marton Fekete