Patents by Inventor Gyorgy Hajos

Gyorgy Hajos 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: 4871846
    Abstract: A process for the preparation of condensed as-triazinium derivatives of the formula I ##STR1## and isomers thereof, wherein R.sub.1 inter alia is an alkyl group, R.sub.2 inter alia is hydrogen or an alkyl group and R.sub.3 is hydrogen and where Z is a group of the formula a or b ##STR2## which comprises reacting a compound of the formula II ##STR3## where Y is a group of the formula c or d ##STR4## with a compound of the formula IIaNH.sub.2 --CO--R.sub.2 (IIa)in the presence of a dehydrating agent. The advantage of the process is that it consists of fewer reaction steps and provides higher yields than the known methods. The compounds of formula I are pharmaceutically active known derivatives.
    Type: Grant
    Filed: April 28, 1987
    Date of Patent: October 3, 1989
    Assignee: EGIS Gyogyszergyar
    Inventors: Sandor Batori, Gyorgy Hajos, Andras Messmer, Pal Benko, Laszlo Pallos, Lujza Petocz, Katalin Grasser, Ibolya Kosoczky, Eniko Szirt nee Kiszelly
  • Patent number: 4814329
    Abstract: The invention relates to novel, sulfur-containing 5-substituted benzimidazole derivatives of formula I ##STR1## and acid-addition salts thereof antihyperlipoproteinemic action, a process for preparing the same, pharmaceutical formulations comprising the novel compound as active ingredient and a method for inhibiting atherosclerosis, trombus formation and treating hyperlipoproteinemic diseases.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: March 21, 1989
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Kalmen Harsanyi, Andrea Maderspach, Andres Javor, Gyorgy Hajos, Gyorgy Fekete, Laslo Szporny, Peter Tetenyi, Katalin Csomor, Egon Karpati, Bela Hegedus, Marta Kapolnas nee Pap, Marta Szollosy, Anna Kallay nee Sohonyai
  • Patent number: 4782052
    Abstract: The invention relates to new 1,2,3,4,6,7,12,12b-octahydroindolo[2,3,-a]quinolizin-1-yl-alkanecarboxylic acid amides of the formula (I), ##STR1## wherein R.sub.1 and R.sub.2 stand independently for a hydrogen or halogen atom, or a hydroxyl, nitro or C.sub.1-4 alkoxy group;R.sub.3 and R.sub.4 stand independently for a hydrogen atom or a C.sub.1-4 alkyl group;R.sub.5 and R.sub.6 stand independently for a hydrogen atom, C.sub.1-8 alkyl group, C.sub.3-8 alkenyl or cycloalkyl group, aryl or aralkyl group, heteroaryl or heteroaralkyl group containing oxygen, nitrogen or sulphur atom, all these groups being optionally substituted; orR.sub.5 and R.sub.6 together form an optionally substituted C.sub.2-8 .alpha.,.omega.-alkylene group, wherein one carbon atom may optionally be replaced by an oxygen or nitrogen atom; andG means a C.sub.1-4 straight chained alkylene group, as well as to their therapeutically suitable acid addition salts and pharmaceutical compositions containing these compounds.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: November 1, 1988
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Ferenc Soti, Csaba Szantay, Maria Incze, Zsuzsanna Balogh nee Kardos, Elemer Ezer, Judit Matuz, Laszlo Szporny, Gyorgy Hajos, Csaba Kuthi
  • Patent number: 4753938
    Abstract: The invention relates to new compounds of the general Formula I ##STR1## and isomers thereof wherein R.sub.1 is C.sub.1-10 alkyl, C.sub.3-6 cycloalkyl or phenyl, naphthyl or phenyl-(C.sub.1-4 alkyl), wherein the aryl ring of the three latter groups may optionally bear one or more halogen, nitro, trifluoromethyl, amino, hydroxy, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy substituent(s);R.sub.2 stands for hydrogen, halogen, hydroxy, oxo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, phenyl or naphthyl, wherein the two latter groups may optionally bear one or more halogen, nitro, trifluoromethyl, amino, hydroxy, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy substituent(s);R.sub.3 represents hydrogen, hydroxy or C.sub.1-4 alkoxy;Z is buta-1,3-dienyl or a group of the general Formula (a) ##STR2## or (b) ##STR3## and X is hydrogen or halogen.The compounds of the general Formula I possess useful pharmacological properties, particularly antidepressant and antiarrhythmial effect.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: June 28, 1988
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Andras Messmer, Sandor Batori, Gyorgy Hajos, Pal Benko, Laszlo Pallos, Lujza Petocz, Katalin Grasser, Eniko Szirt nee Kiszelly
  • Patent number: 4697013
    Abstract: A one step process for the preparation of compounds having antidepressant activity of the formula I ##STR1## and isomers thereof, wherein R.sub.1, R.sub.2, Z and A.sup.- have the meanings indicated in the claims, which process comprises: heating a compound of the formula II ##STR2## wherein Z, A.sup.-, R.sub.1 and R.sub.2 have the meanings set out in the claims and R.sub.3 stands for hydrogen or C.sub.1-4 alkyl, in the presence of a dehydrating agent to split off a compound of the formula R.sub.3 OH. The invention is also directed to compounds of the formula I, wherein R.sub.2 is halogen and to compositions containing a compound of the formula I which exhibit antidepressant activity.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: September 29, 1987
    Assignee: Egyt Gyogyszervegyeszeti Gyar
    Inventors: Andras Messmer, Sandor Batori, Gyorgy Hajos, Pal Benko, Laszlo Pallos, Lujza Petocz, Grasser Katalin, Ibolya Kosoczky
  • Patent number: 4677109
    Abstract: The invention relates to new 1-[6-(2'-substituted-5', 6', 7', 8'-tetrahydro-4'-oxo-quinazolino)]-3,4-dihydro-6,7-disubstituted-isoquinol ine derivatives of the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each independently represents hdyroxyl or alkoxy having from 1 to 6 carbon atoms,R.sup.3 is alky having from 1 to 6 carbon atoms, optionally substituted phenyl, optionally substituted alkylphenyl having from 1 to 4 carbon atoms in the alkyl moiety or an optionally substiutted heterocyclic group,and acid addition and quaternary salts thereof.Compounds of the formula (I) are pharmaceutically active, in particular show spasmolytic, analgesic, antipyretic activity and have a protecting effect in acute alcoholic intoxication.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: June 30, 1987
    Assignee: Richter Gedeon Vegyeszeti Syar R.T.
    Inventors: Gabor Bernath, Jeno Kobor, Janos Lazar, Gabor Motika, Elemer Ezer, Gyorgy Hajos, Eva Palosi, Laszlo Denes, Laszlo Szporny
  • Patent number: 4668688
    Abstract: The invention relates to new N-substituted bis(hydroxymethyl)-methyl-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,the dotted line is an optional double bond in the 1,2-position,R.sup.3 is alkyl having from 1 to 6 carbon atoms or aralkyl containing from 1 to 4 carbon atoms in the alkyl moiety, or--if there is a single bond in the 1,2-position--represents a group of the formula ##STR2## in which X is oxygen ifR.sup.4 is alkyl having from 1 to 5 carbon atoms, alkoxy having from 1 to 4 carbon atoms, hydroxyl, phenyl or substituted phenyl; orX is oxygen or sulfur ifR.sup.4 is an --NH.sub.2, --NH--C.sub.1-4 -alkyl, --NH--C.sub.3-6 -cycloalkyl, --NH-phenyl or --NH--C.sub.1-4 -alkyl-phenyl group; andR.sup.5 and R.sup.6 independently stand for hydrogen, alkyl having from 1 to 4 carbon atoms or phenyl, with the proviso that at least one of them is other than phenyl,and salts thereof.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: May 26, 1987
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Gabor Bernath, Jeno Kobor, Ferenc Fulop, Pal Perjesi, Elemer Ezer, Gyorgy Hajos, Eva Palosi, Laszlo Denes, Laszlo Szporny
  • Patent number: 4659712
    Abstract: The invention relates to fodder additives comprising a compound inducing the microsomal enzyme system of the liver, preferably a compound of the formula (I) ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are identical or different and stand for hydrogen, halogen, trihalomethyl, or alkyl or alkoxy each containing from 1 to 6 carbon atoms;R.sub.4 is phenyl, dialkylaminocarbonyl or alkoxycarbonyl having from 1 to 6 carbon atoms in the alkyl and alkoxy moieties, respectively;R.sub.5 is hydrogen or methyl, or together with R.sub.4 and the adjacent nitrogen atom forms a hetero-ring having up to 8 members;n is 1, 2, 3, 4 or 5;m is 0 or 1;a is 0 or 1,with the proviso that if a=0, R.sub.1 is trihalomethyl and R.sub.2 and R.sub.3 both are hydrogen, preferably in amount of 0.5 to 99% by weight, in an admixture with conventional carriers and/or additives and optionally at least one further active ingredient conventionally used in the animal husbandry.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: April 21, 1987
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: PerjeIstvan, Lao Szporny, Andras Selmeczi, Laszlo Vereczkey, Imre Klebovich, Edit Toth, Gyorgy Hajos, Jozsef Torley, Ferenc Simon, Peter Sarkozy, Attila Misley
  • Patent number: 4656179
    Abstract: The invention relates to new 1-[bis(hydroxymethyl)-methyl]-3,4-dihydro- or -1,2,3,4-tetrahydroisoquinoline 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 or a single electron pair,and the dotted line represents an optional double bond,and salts thereof.The new compounds are useful intermediates in the preparation of other, pharmaceutically active isoquinoline derivatives or are pharmaceutically active themselves.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: April 7, 1987
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Gabor Bernath, Jeno Kobor, Ferenc Fulop, Elemer Ezer, Gyorgy Hajos, Eva Palosi, Laszlo Denes, Laszlo Szporny
  • Patent number: 4654351
    Abstract: The invention relates to new bis(substituted methyl)-methyl-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, aralkyl having from 1 to 4 carbon atoms in the alkyl moiety or a ##STR2## group, in which R.sup.4 is alkyl having from 1 to 5 carbon atoms, phenyl, substituted phenyl or --NH--phenyl,X is oxygen or sulfur,R.sup.7 is hydroxyl, halogen or an ##STR3## group, R.sup.8 is halogen, alkoxy from 1 to 4 carbon atoms or an ##STR4## group, in which X has the same meaning as defined above, andR.sup.9 independently from R.sup.4 may have the same meanings as defined for R.sup.4, or is an --NH(C.sub.1-4 -alkyl) or C.sub.3-6 -cycloalkyl group,and salts thereof. According to another aspect of the invention there are provided processes for the preparation of these compounds and pharmaceutical compositions containing them.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: March 31, 1987
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Gabor Bernath, Jeno Kobor, Ferenc Fulop, Gabor Motika, Attila Sohajda, Elemer Ezer, Gyorgy Hajos, Eva Palosi, Laszlo Denes, Laszlo Szporny
  • 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: 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: 4602018
    Abstract: The invention relates to new condensed as-triazine derivatives of the general Formula I ##STR1## and isomers thereof (wherein R.sub.1 stands for C.sub.1-10 alkyl or phenyl or naphthyl, wherein the two latter groups may be optionally substituted by one or more halogen, nitro, amino, hydroxy, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy substituent(s);R.sub.2 is hydrogen, C.sub.1-4 alkyl, hydroxy, halogen or phenyl or naphthyl, wherein the two latter groups may be optionally substituted by one or more halogen, nitro, amino, hydroxy, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxy substituent(s);R.sub.3 represents hydrogen or C.sub.1-4 alkyl;Z is buta-1,3-dienyl or a group of the Formula (a) ##STR2## and A.sup.- is an anion).The compounds of the general Formula I possess useful pharmacological properties, particularly antiarrhythmial and antidepressant effect.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: July 22, 1986
    Assignee: Egyt Gyogyszevegyeszeti Gyar
    Inventors: Andras Messmer, Sandor Batori, Gyorgy Hajos, Pal Benko
  • 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: 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
  • Patent number: 4551462
    Abstract: The invention relates to racemic or optically active eburnane derivatives of the formula (I), ##STR1## wherein R represents an alkyl group having 1 to 6 carbon atoms,A stands for hydroxyl andY is hydrogen, orA and Y together form an oxo group,and the configuration of the hydrogen in the 3-position and of R is .alpha.,.alpha. and/or .beta.,.beta. or .alpha.,.beta. and/or .beta.,.alpha.,and acid addition salts thereof.The new compounds possess valuable pharmaceutical properties, thus their certain representatives show antiallergic activity, while others are potent antidepressive, gastric secretion inhibiting and anticonvulsive agents. The compounds of the formula (I) and pharmaceutically acceptable acid addition salts thereof can therefore be employed as active ingredients of pharmaceutical compositions, which are also within the scope of the invention.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: November 5, 1985
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Janos Sapi, Eva Palosi, Bela Kiss, Elemer Ezer, Gyorgy Hajos
  • Patent number: 4456601
    Abstract: New .DELTA..sup.1,3,5 -3-chloro-pregnane derivatives of the general formula (I), ##STR1## wherein X is hydrogen atom, acetyl group or a chloroacetyl group, andY and Z represent hydrogen atom or a halogen atom, with the proviso that at least one of them is other than hydrogen,are prepared by reacting a .DELTA..sup.1,4 -3-oxo-pregnane derivative of the general formula (II), ##STR2## wherein X' is acetyl group or a chloroacetyl group and Y and Z are as defined above, with a chloromethyleneiminium salt of the general formula (III), ##STR3## wherein A.sup.(-) is a salt-forming anion, in an aprotic solvent in the presence of a tertiary base, and, if desired, subjecting the resulting product to hydrolysis.The compounds of the general formula (I) exert antiphlogistic effects and can be used in the therapy for the treatment of inflammations.
    Type: Grant
    Filed: October 14, 1982
    Date of Patent: June 26, 1984
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Jozsef Toth, Gyorgy Hajos, Gyorgy Fekete, Istvan Horvath, Laszlo Szporny, Anna Boor nee Mezei, Peter Aranyi, Aniko Naray, Sandor Gorog, Sandor Holly, Csaba Molnar