Patents Assigned to Richter Gedeon Vegyeszeti
  • Patent number: 4624959
    Abstract: The compound N-{2-[(3-benzoyl-1-pyridyl)-thio]-ethyl}-N'-cyano-S-methyl-isothiourea and pharmaceutically acceptable acid addition salts thereof are disclosed as well as pharmaceutical compositions containing same and a method of treatment employing same. The compound or its acid addition salts are effective in treating gastric oedema and thus are useful in ulcer therapy.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: November 25, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Elemer Ezer, Kalman Harsanyi, Hajnalka Vikar nee Petho, Judit Matuz, Laszlo Szporny, Eszter Cholnoky, Csaba Kuthi, Ferenc Trischler, Bela Hegedus, Marta Kapolnas nee Pap, Anna Kallay nee Sohonyai
  • Patent number: 4623647
    Abstract: The invention relates to new [1,3]oxazino[4,3-a]-isoquinoline derivatives of the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 represent hydroxyl or alkoxy having from 1 to 6 carbon atoms,R.sup.3 is hydrogen, alkyl having from 1 to 8 carbon atoms, cycloakyl or cycloalkenyl having from 3 to 6 carbon atoms, optionally substituted phenyl, aralkyl having from 1 to 4 carbon atoms in the alkyl moiety or heteroaryl,R.sup.4 is hydrogen or alkyl having from 1 to 4 carbon atoms, orR.sup.3 and R.sup.4 together form a --(CH.sub.2).sub.n -- group, in which n is an integer from 3 to 7,R.sup.5 is hydroxyl, halogen or an ##STR2## group, in which R.sup.6 is optionally substituted phenyl,X is oxygen or sulfur,and salts thereof.According to another aspect of the invention there is provided a process for the preparation of these compounds. Compounds of formula (I) are pharmaceutically active. Pharmaceutical compositions containing them are also within the scope of the invention.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: November 18, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Gabor Bernath, Jeno Kobor, Ferenc Folop, Pal Sohar, Pal Perjesi, Elemer Ezer, Gyorgy Hajos, Eva Palosi, Laszlo Denes, Laszlo Szporny
  • Patent number: 4622329
    Abstract: The invention relates to new 1-cyclohexyl-3,4-dihydroisoquinoline derivatives of the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each independently represents hydrogen, hydroxyl or alkoxy having from 1 to 6 carbon atoms,X is oxygen andZ is a .dbd.CH.sub.2 or .dbd.CH--COOR.sup.3 group, in which R.sup.3 is hydrogen or alkyl having from 1 to 6 carbon atoms; orX represents an .dbd.NR.sup.4 group, in which R.sup.4 is hydrogen or hydroxyl, andZ is a .dbd.CH--CN, .dbd.CH.sub.2 or .dbd.CH--COOR.sup.3 group, in which R.sup.3 is as defined above,and acid addition salts thereof.The compounds of formula (I) are pharmaceutically active, in particular show antispasm, analgesic, gastric acid secretion inhibiting, sedative and hypnotic activity and effectively reduce the alcoholic narcosis time. According to a further aspect of the invention there is provided a process for the preparation of these compounds. The invention further relates to pharmaceutical compositions containing them as active ingredient.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: November 11, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyart R.T.
    Inventors: Gabor Bernath, Jeno Kobor, Janos Lazar, Gabor Motika, Elemer Ezer, Gyorgy Hajos, Eva Palosi, Laszlo Denes, Laszlo Szporny
  • Patent number: 4622327
    Abstract: The invention relates to new 2H-azeto[2,1-a]isoquinoline derivatives of formula (I) ##STR1## wherein R.sup.1 and R.sup.2 represent hydroxyl or alkoxy having from 1 to 6 carbon atoms,R.sup.3 is hydroxyl, halogen or an ##STR2## group, whereinX is oxygen or sulfur,R.sup.4 is optionally substituted phenyl,and acid addition, metal and quaternary salts thereof.According to the invention the new compounds are prepared by cyclization of the corresponding compounds of formula (II), ##STR3## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined above, and Hal is halogen.Compounds of formula (I) are pharmaceutically active, in particular are potent analgesic and antipyretic agents.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: November 11, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Gabor Bernath, Jeno Kobor, Alajos Kalman, Pal Sohar, Ferenc Fulop, Elemer Ezer, Gyorgy Hajos, Eva Palosi, Laszlo Denes, Laszlo Szporny
  • Patent number: 4618611
    Abstract: The invention relates to new aminopropanol derivatives of the formula (I) ##STR1## wherein R.sub.1 is halogen, trihalomethyl, alkoxy having from one to 3 carbon atoms or alkyl having from one to 3 carbon atoms,R.sub.2 is alkyl having from one to 3 carbon atoms, andR.sub.3 is cycloalkyl having from 3 to 6 carbon atoms, orR.sub.2 and R.sub.3 together with the nitrogen they are attached to form an up to 8 membered ring optionally containing oxygen or a further nitrogen as an additional hetero atom, and optionally substituted with alkyl having from one to 4 carbon atoms or benzyl,and acid addition and quaternary ammonium salts thereof.According to another aspect of the invention there are provided processes for the preparation of these compounds.The new compounds are suitable for the treatment of acute ethanolic intoxication. Pharmaceutical compositions containing them are also within the scope of the invention.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: October 21, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Edit Toth, Jozsef Torley, Gyorgy Fekete, Laszlo Szporny, Laszlo Vereczkey, Eva Palosi, Imre Klebovich, Pal Vittay, Sandor Gorog, Istvan Hajdu
  • Patent number: 4618581
    Abstract: The invention relates to a new microbiological process for the preparation of clavine alkaloids of the general formula (I), ##STR1## wherein R stands for hydroxymethyl or methyl group, by cultivation of a Claviceps fusiformis strain in liquid submerged culture medium containing sources of carbon, nitrogen, mineral salts and optionally other additives, under aerobic conditions, in which a Claviceps fusiformis variant strain deposited under No. 00211 is used as alkaloid-producing strain. The invention further relates to a biologically pure culture of the Claviceps fusiformis variant strain No. 00211 obtained in a process in which a Claviceps fusiformis strain No. 00164 is grown in a solid culture medium containing sources of carbon, nitrogen, mineral salts and agar as well as an additive promoting the formation of cytochrome P-450, followed by the selective isolation of the new strain No. 00211.
    Type: Grant
    Filed: August 3, 1984
    Date of Patent: October 21, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar RT.
    Inventors: Maria Trinn, Gabriella Kordik, Eva Udvardy-Nagy nee Cserey Pechaany, Zsuzsanna Vida, Rzsebet Zsoka nee Somkuti
  • Patent number: 4616025
    Abstract: New thiazolidine compounds of the formula (I) having anti-ulcer activity are disclosed: ##STR1## wherein Ar is a 2-furyl or a phenyl, naphthyl or pyridyl group optionally substituted by one or more C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, halo-C.sub.1-4 -alkoxy, dihalomethyl, trihalomethyl, hydroxyl or nitro groups or by a group of the formula (II), ##STR2## wherein Y is nitrogen or CH;Z is cyano or carbamoyl if Y is nitrogen, and represents a nitro group if Y is CH.Also disclosed are several processes for preparing the new compounds as well as pharmaceutical compositions and method of treatment employing same.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: October 7, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Elemer Ezer, Kalman Harsanyi, Gyorgy Domany, Laszlo Szporny, Judit Matuz, Bela Hegedus, Katalin Pallagi, Istvan Szabadkai, Peter Tetenyi
  • Patent number: 4614824
    Abstract: The invention relates to new racemic and optically active apovincaminic acid derivatives of the general formula (I) ##STR1## wherein A is hydroxyl, halogen or a group --O--(CH.sub.2).sub.n --OR.sup.1 or --OMe, in whichR.sup.1 is alkyl having from one to 6 carbon atoms,n is an integer between 2 and 6,Me is an alkali metal,R.sup.2 stands for an alkyl group having from one to 6 carbon atoms, which may be identical with or different from R.sup.1,and the hydrogen in the 3-position and the R.sup.2 group have an .alpha.,.alpha.- and/or .beta.,.beta.- or .alpha.,.beta.- and/or .beta.,.alpha.-configuration, and pharmaceutically acceptable acid addition salts thereof, which are pharmaceutically active, e.g. show antihypoxial activity or are potent peripheral vasodilators. Their preparation and pharmaceutical composition containing them are also within the scope of the invention.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: September 30, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Janos Kreidl, Laszlo Czibula, Gyorgy Visky, Maria Farkas nee Kirjak, Judit Meszaros nee Brill, Dora Groo, Eva Palosi, Egon Karpati, Laszlo Szporny
  • Patent number: 4605672
    Abstract: The invention relates to the preparation of new diethylaminoalkoxybenzhydrol derivatives of the formula (I) ##STR1## wherein R.sub.1 is hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms,R.sub.2 is halogen, trihalomethyl, or alkoxy having from one to 4 carbon atoms, andn is 1, 2, 3 or 4,and acid addition and quaternary ammonium salts thereof.According to another aspect of the invention, there are provided new compounds of the formula (I), and acid addition and quaternary salts thereof. The compounds can be used for the treatment of acute ethanolic intoxication and depression syndromes. Pharmaceutical compositions containing them as active ingredient are also within the scope of the invention.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: August 12, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Edit Toth, Jozsef Torley, Gyorgy Fekete, Laszlo Szporny, Laszlo Vereczkey, Eva Palosi, Imre Klebovich, Pal Vittay, Sandor Gorog, Istvan Hajdu
  • Patent number: 4605785
    Abstract: The invention relates to new 1,1-diphenylpropan-1-ol derivatives of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 independently represent hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms,R.sub.3 is halogen, trihalomethyl, alkyl having from one to 5 carbon atoms or alkoxy having from one to 5 carbon atoms,R.sub.4 is phenyl optionally substituted by one or more identical or different substituents selected from the group of halogen, trihalomethyl, alkyl, alkoxy, cyano, nitro, amino, alkylamino, dialkylamino, hydroxyl, carboxyl or substituted carboxyl; dialkylaminocarbonyl or alkoxycarbonyl containing from one to 4 carbon atoms in the alkyl and alkoxy moieties, respectively,n is 1, 2, 3, 4, or 5.According to another aspect of the invention there are provided processes for the preparation of the compounds of formula (I).
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: August 12, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Edit Toth, Jozsef Torley, Eva Palosi, Szabolcs Szeberenyi, Laszlo Szporny, Sandor Gorog, Istvan Hajdu
  • Patent number: 4605653
    Abstract: The invention relates to 1-(hydroxymethyl)-1,6,7,11b-tetrahydro-2H,4H-[1,3]oxazino- or -thiazino-[4,3-a]isoquinoline derivatives of the formula (I), ##STR1## wherein R.sup.1 and R.sup.2 are alkoxy having from 1 to 6 carbon atoms,X is oxygen or sulfur,Y is .dbd.O, .dbd.S or an .dbd.NR.sup.3 group, whereinR.sup.3 is hydrogen, alkyl having from 1 to 6 carbon atoms, cycloalkyl having from 3 to 8 carbon atoms or optionally substituted phenyl,and acid addition and quaternary salts thereof.
    Type: Grant
    Filed: March 19, 1985
    Date of Patent: August 12, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T
    Inventors: Gabor Bernath, Jeno Kobor, Ferenc Folop, Attila Sohajda, Alajos Kalman, Elemer Ezer, Gyorgy Hajos, Eva Palosi, Laszlo Denes, Laszlo Szporny
  • Patent number: 4602909
    Abstract: A method of treating chronic pain is disclosed which comprises the step of topically administering to the skin of a human patient, 1 to 100 .mu.g/cm.sup.2 of body surface of a compound of the Formula (I) ##STR1## in which R is --CH.sub.3 or --CHOR.sup.1 is methoxy or amino;R.sup.2 is hydrogen, hydroxyl or acetoxy;R.sup.3 is hydrogen or ethyl;R.sup.4 and R.sup.5 together form a valency bond or an epoxy bridge, or R.sup.4 is hydroxy or ethyl; andR.sup.5 is hydrogen; or a pharmaceutically acceptable acid addition salt thereof, by iontophoresis.
    Type: Grant
    Filed: February 7, 1983
    Date of Patent: July 29, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Bertalan Csillik, Erzsebet Knyihar, Attila Szucs
  • Patent number: 4598080
    Abstract: The invention relates to new pyridine derivatives of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 independently represent hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms,and acid addition and quaternary ammonium salts thereof.According to another aspect of the invention there are provided processes for the preparation of these compounds.The compounds of the formula (I) are pharmacologically active. In particular, they inhibit the microsomal monooxigenase enzyme system of the liver. Pharmaceutical compositions containing them as active ingredient are also within the scope of the invention.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: July 1, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Edit Toth, Jozsef Torley, Eva Palosi, Szabolcs Szebereneyi, Laszlo Szporny, Sandor Gorog, Istvan Hajdu
  • Patent number: 4593047
    Abstract: The invention relates to the preparation of 3-trifluoromethyl- and 2,5-dimethyl-4'-hydroxy-.alpha.-ethyl-benzhydrol. Both compounds have so far been described only as metabolites of corresponding benzhydrol derivatives containing no hydroxyl group. Neither their physico-chemical characteristics nor their manufacturing processes have been disclosed in the known publications.3-Trifluoromethyl- and 2,5-dimethyl-4'-hydroxy-.alpha.-ethyl-benzhydrol are suitable for the treatment of acute ethanolic intoxication. Accordingly, another aspect of the invention is a pharmaceutical composition containing one of these compounds as active ingredient.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: June 3, 1986
    Assignee: Richter Gedeon Vegyeszeti Cyar RT
    Inventors: Edit Toth, Jozsef Torley, Gyorgy Fekete, Laszlo Szporny, Laszlo Vereczkey, Eva Palosi, Imre Klebovich, Pal Vittay, Sandor Gorog, Istvan Hajdu
  • Patent number: 4588685
    Abstract: The invention involves isolating a food intake suppressant by subjecting blood serum to ultrafiltration transmitting up to a molecular weight of 30,000 daltons, partially evaporating the filtrate, removing the insoluble part from the concentrate obtained, adding trichloroacetic acid up to a concentration of 5 to 25 weight/volume percent to the liquid phase at a temperature of 0.degree. to 10.degree. C., removing the proteins precipitated, subjecting the obtained solution to chromatography on a gel with a void volume below a molecular weight of 4000 daltons, eluting with a solution of pH 6.0 to 7.0, concentrating the biologically active fractions, chromatographing again on a gel with a void volume below a molecular weight of 4000 daltons, fractionating by elution with water, lyophilizing the active fractions, dissolving the lyophilized fractions in a buffer of pH 8.1 to 8.2, adding trypsin and chymotrypsin to the solution in a substantially identical amount of 0.01 to 0.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: May 13, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Jozsef Knoll, Janos Nagy, Huba Kalasz, Berta Knoll
  • Patent number: 4587251
    Abstract: The invention relates to new indolo[2,3-g]cyclopent[a]indolizine derivatives of the formulae (II) ##STR1## and/or (III) ##STR2## wherein W is alkoxycarbonyl having from one to four carbon atoms in the alkoxy moiety or cyano,R.sub.1 is hydrogen or alkyl having from one to four carbon atoms,G is a >CH.sub.2 or >C.dbd.O group, andX and Y each stands for hydrogen or together represent a C--C bond.According to another aspect of the invention there is provided a process for the preparation of the above compounds, which are pharmaceutically active, in particular, possess valuable gastric acid secretion inhibiting activity. Pharmaceutical compositions containing compounds of the formulae (II) and/or (III) are also within the scope of the invention.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: May 6, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Elemer Ezer, Laszlo Szporny, Gyorgy Hajos, Csaba Szantay, Tibor Keve, Gyorgy Fekete, Gabor Megyeri, Tibor cs, Hedvig Bolcskei
  • Patent number: 4587049
    Abstract: The invention relates to compounds of the general formula (X) ##STR1## wherein R is as a removable protecting substituent of the amido group a phenyl group or a benzyl group substituted by one or more alkoxy group(s) having 1-4 carbon atoms andR.sup.1 stands for a hydrogen atom or an alkyl group having 1-4 carbon atoms and a process for the preparation thereof.The compounds of the general formula (X) can be prepared from the starting materials of the general formula (V), wherein R and R.sup.1 are as stated above and Z is an alkyl group having 1-4 carbon atoms.The compounds of the general formula (X) are useful pharmaceutical intermediates which can be used in the preparation of known antibiotics (e.g. Thienamycin and PS-5).
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: May 6, 1986
    Assignees: Richter Gedeon Vegyeszeti Gyar RT, Byogal Gyogyszergyar
    Inventors: Karoly Lempert, Ferenc Bartha, Gabor Doleschall, Jozsef Fetter, Gyula Hornyak, Jozsef Nyitrai, Gyula Siming, Karoly Zauer
  • Patent number: 4579954
    Abstract: The invention relates to the new monohydrate of N-methyl-N'-{2-[(5-methylimidazol-4-yl)-methylthio]-ethyl}-N"-cyanoguanidi ne (cimetidine), a histamine-H.sub.2 receptor antagonist which is called N-methyl-N'-{2-[(5-methylimidazol-4-yl)-methylthio]-ethyl}-N"-cyanoguanidi ne H (cimetidine H) as well as to a process for the preparation of same, which comprises pouring a hot, homogeneous aqueous solution of N-methyl-N'-{2-[(5-methylimidazol-4-yl)-methylthio]-ethyl}-N"-cyanoguanidi ne, optionally containing also methylamine, onto ice and separating the N-methyl-N'-{2-[(5-methylimidazol-4-yl)-methylthio]-ethyl}-N"-cyanoguanidi ne monohydrate.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: April 1, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Kalman Harsanyi, Gyorgy Domany, Oszkar Fuchs, Lajos Toldy, Gyorgy Fekete, Endre Kasztreiner, Bela Hegedus, Ferenc Morasz, Andras Rado, Tibor Lang, Arpad Lazar, Eva Csongor, Tibor Balogh, Janos Borvendeg, Jozsef Reiter, Tibor Somogyi, Margit Bidlo nee Igloy
  • Patent number: 4564630
    Abstract: The invention relates to new carbamyloxybenzhydrol derivatives of the formula (I) ##STR1## wherein R.sub.1 is hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon atoms or alkoxy having from one to 4 carbon atoms;R.sub.2 is hydrogen or an R.sub.3 --NH--COO-- group;R.sub.3 is alkyl having from one to 6 carbon atoms, cycloalkyl having up to 7 carbon atoms, or phenyl, optionally substituted with one or more halogen(s).The compounds of the formula (I) show antilipaemic activity and can therefore be used in therapy for treating hyperlipaemia and coronary diseases. Pharmaceutical compositions containing them as active ingredient are also within the scope of the invention.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: January 14, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Edit Toth, Jozsef Torley, Istvan Hajdu, Sander Gorog, Andrea Maderspach, Gyorgy Hajos, Laszlo Szporny, Andras Javor
  • Patent number: 4563464
    Abstract: The invention relates to new 2-azabicyclo[2.2.2]octane derivatives of the formula (I), ##STR1## wherein A is hydrogen, alkoxycarbonyl having from one to 4 carbon atoms in the alkoxy group, phenylalkoxycarbonyl having from one to 4 carbon atoms in the alkoxy moiety, alkyl having from one to 6 carbon atoms, aralkyl containing from one to 4 carbon atoms in the alkyl moiety or substituted acyl,R.sub.1 is hydrogen or alkyl having from one to 4 carbon atoms,Z is hydrogen or halogen,X is hydrogen or halogen,Y is hydrogen, orX and Y together represent a C--C bond,W is alkoxycarbonyl having from one to 4 carbon atoms in the alkoxy moiety, cyano, carboxamido or haloformyl, orif X stands for halogen, X and Y together represent a ##STR2## group. According to another aspect of the invention there is provided a process for the preparation of the above compounds, which are pharmaceutically active, in particular, possess valuable anticonvulsive, vasodilating or gastric acid secretion inhibiting properties.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: January 7, 1986
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Elemer Ezer, Laszlo Szporny, Gyorgy Hajos, Csaba Szantay, Tibor Keve, Gyorgy Fekete, Gabor Megyeri, Tibor Acs, Hedvig Bolcskei