Patents by Inventor Csaba Szantay

Csaba Szantay 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: 4364931
    Abstract: The invention relates to a composite insect attractant for male white-line dart moths [Scotia segetum] containing 7[Z]-dodecen-l-ol acetate of the formula [I] ##STR1## and 9[Z]-tetradecen-l-ol acetate of the formula [II] ##STR2## as active agents in a weight ratio of I to II of [50-99]:[50-1], optionally along with a liquid or solid adjuvant.Another object of the invention is an insect trap containing said composition and a process for attracting and trapping male white-line dart moths as well as a process for disrupting their mating by air permeation technique. The invention relates further to a novel process for the preparation of the active ingredients of the composition.
    Type: Grant
    Filed: December 24, 1980
    Date of Patent: December 21, 1982
    Assignee: Egyt Gyogyszervegyeszeti Gyar
    Inventors: Csaba Szantay, Lajos Novak, Miklos Toth, Jozsef Jakab, Attila Kis-Tamas, Istvan Ujvari
  • Patent number: 4356305
    Abstract: The invention relates to new halovincamone derivatives of the general formula (I), ##STR1## wherein R is a C.sub.1-6 alkyl group and X is halogen, and pharmaceutically acceptable acid addition salts and optically active isomers thereof. These compounds possess valuable vasodilating effect, and can be applied to advantage in the therapy.The new compounds defined above are prepared according to the invention so that a single epimer or an epimeric mixture of a racemic or optically active halogenated 14-oxo-15-hydroxy-E-homoeburnane derivative of the general formula (II), ##STR2## wherein R and X are as defined above, or an acid addition salt thereof is treated with an oxidizing agent, and, if desired, the resulting compound of the general formula (I) is converted into its pharmaceutically acceptable acid addition salt and/or resolved.
    Type: Grant
    Filed: August 5, 1980
    Date of Patent: October 26, 1982
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Lajos Dancsi, Tibor Keve, Ferenc Drexler
  • Patent number: 4345082
    Abstract: The invention relates to new hydroxyamino-eburnane derivatives of the general formula (I), ##STR1## wherein R.sup.1 and R.sup.2 each stand for a C.sub.1-6 alkyl group, as well as to pharmaceutically acceptable acid addition salts and optically active isomers of these compounds.These new compounds can be applied as peripheral vasodilatating agents or can be converted into other compounds, e.g. vincamine and apovincamine derivatives of valuable therapeutical effects.The compounds of the general formula (I) are prepared according to the invention by reacting a hexahydro-indoloquinolisinium derivative of the general formula (II), ##STR2## wherein R.sup.2 is as defined above and X stands for an acid residue, with a methylenemalonic acid diester derivative of the general formula (III), ##STR3## wherein R.sup.
    Type: Grant
    Filed: May 29, 1980
    Date of Patent: August 17, 1982
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Janos Sapi, Lajos Dancsi, Tibor Keve, Maria Gazdac
  • Patent number: 4344959
    Abstract: The invention relates to new compounds of the general formula (I), ##STR1## wherein R.sup.1 is hydrogen or a lower alkoxy group andZ.sup.1 is hydrogen, orR.sup.1 and Z.sup.1 form together a double bond,Z.sup.2 is hydrogen andB is hydroxy, orZ.sup.2 and B form together a double bond,Z.sup.3 and Z.sup.4 each stand for hydrogen or they form together an ethylene group, orZ.sup.4 and D form together a double bond,C is oxygen atom or a lower alkoxy group,D is a valence bond if C stands for oxygen, or otherwise D forms a double bond together with Z.sup.4 or Z.sup.5,Z.sup.5 forms a double bond together with D or represents hydrogen, andR.sup.2 is a group of the general formula --COOR.sup.3, wherein R.sup.3 is lower alkyl, orZ.sup.5 and R.sup.2 form together a 1-oxo-2-oxa-tetramethylene group, with the proviso that if Z.sup.3 and Z.sup.4 form together an ethylene group, R.sup.2 may stand only for a --COOR.sup.3 group,insecticidal compositions containing them, as well as to a process for their preparation.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: August 17, 1982
    Assignee: Egyt Gyogyszervegyeszeti Gyar
    Inventors: Lajos Novak, Csaba Szantay, Janos Rohaly, Attila Kis-Tamas, Laszlo Varjas, Janos Csutak
  • Patent number: 4343738
    Abstract: The invention relates to new, racemic or optically active, halogenated 15-hydroxy-E-homoeburnane derivatives of the formulae (Ia) and/or (Ib), ##STR1## wherein R is a C.sub.1-6 alkyl group and X is halogen, and acid addition salts thereof. These compounds are biologically active, furthermore they can be applied as intermediates in the synthesis of other pharmaceutically active substances.
    Type: Grant
    Filed: December 16, 1980
    Date of Patent: August 10, 1982
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Lajos Dancsi, Tibor Keve, Ferenc Drexler
  • Patent number: 4342871
    Abstract: An antiphlogistic compound of the formula (I) ##STR1## or a pharmaceutically effective salt thereof wherein R.sup.1 and R.sup.2 are hydrogen or C.sub.1-4 alkoxy or together form a methylenedioxy group;R.sup.3, R.sup.4, R.sup.5, and R.sup.6 are hydrogen or a group of the formula --CH.sub.2 --(CH.sub.2).sub.n -R.sup.7 with the proviso that at least one of R.sup.3, R.sup.4, R.sup.5 and R.sup.6 is other than hydrogen;R.sup.7 is a carboxylic group or a carboxylic acid derivative group; n=0, 1 or 2, provided that if R.sup.3, R.sup.4 and R.sup.5 are hydrogen and R.sup.7 in the group R.sup.6 is cyano or alkoxycarbonyl, and n=1, then R.sup.1 and R.sup.2 are hydrogen, C.sub.2-4 alkoxy, or together form a methylenedioxy group.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: August 3, 1982
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt
    Inventors: Csaba Szantay, Lajos Szabo, Laszlo Toke, Istvan Toth, Sandor Virag, Erzsebet Kanyo, Agoston David
  • Patent number: 4329350
    Abstract: Compounds of the formula: ##STR1## wherein R is alkyl having 1 to 6 carbon atoms;A is substituted or unsubstituted alkyl having 1 to 6 carbon atoms, aralkyl having 7 to 16 carbon atoms wherein the alkyl or aralkyl groups are unbranched in the 1-position or an acyl group derived from an aliphatic or aromatic carboxylic acid;B is hydrogen; orA and B together form an optionally substituted alkylidene having 2 to 8 carbon atoms or an aralkylidene group having 7 to 18 carbon atoms where the alkylidene and aralkylidene groups are unbranched in the 1-position or pharmaceutically acceptable salts thereof are disclosed. The compounds have vasodilating properties.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: May 11, 1982
    Assignee: Richter Gedeon Vegyeszeti Gyar R.T.
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Egon Karpati, Laszlo Szporny
  • Patent number: 4315011
    Abstract: The invention is directed to 1-alkyl-9-bromohexagydro indoloquinolizium salts and a method for their use to increase blood circulation and decrease in blood vessel resistance.
    Type: Grant
    Filed: July 10, 1979
    Date of Patent: February 9, 1982
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csaba Szantay, Lajos Szabo, Gyoorgy Kalaus, Lajos Dancsi, Tibor Keve, Egon Karpati, Laszlo Szporny
  • Patent number: 4314939
    Abstract: A process for the preparation of 15-hydroxyimino-E-homoeburnane derivatives of the formula (I), ##STR1## wherein X.sup.1 stands for hydrogen or halogen andR is a C.sub.1-6 alkyl group,or acid addition salts and optically active derivatives thereof. These compounds are valuable intermediates of the synthesis of compounds with outstanding biological effects. According to the invention a racemic or optically active 15-hydroxy-E-homoeburnane derivative of the formula (II), ##STR2## is treated, optionally after separating the 15-epimers and/or resolution, with a halogenating agent. The resulting 15-halo-E-homoeburnane derivative of the formula (III), ##STR3## wherein X.sup.2 stands for halogen, is reacted, optionally after separating the 15 epimers and/or resolution, with an alkali nitrite in the presence of an acid, and, if desired, the resulting 15-hydroxyimino-E-homoeburnane derivative of the formula (I) is converted into its acid addition salt and/or resolved.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: February 9, 1982
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Lajos Dancsi, Tibor Keve, Ferenc Drexler
  • Patent number: 4285950
    Abstract: The invention relates to new 10-halo-E-homoeburnane derivatives of the general formula (I), ##STR1## wherein R.sup.2 is a C.sub.1-6 alkyl group and X is halogen, and epimers, optically active derivatives and pharmaceutically acceptable acid addition salts thereof. These substances exert vasodilating effects and can be applied to advantage in the therapy.The new compounds are prepared so that a racemic or optically active 9-halo-octahydroindoloquinolisine derivative of the general formula (II), ##STR2## wherein R.sup.2 and X are as defined above and R.sup.1 is a C.sub.1-6 alkyl group, or an acid addition salt thereof is treated with a strong base, and, if desired, the 15-epimers of the resulting compound having the general formula (I) are separated from each other, and/or, if desired, the resulting substance is converted into its pharmaceutically acceptable acid addition salt and/or resolved.
    Type: Grant
    Filed: August 5, 1980
    Date of Patent: August 25, 1981
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Lajos Dancsi, Tibor Keve, Ferenc Drexler
  • Patent number: 4285865
    Abstract: The invention relates to new, racemic or optically active, halogenated 15-hydroxy-E-homoeburnane derivatives of the general formula (Ia) and/or (Ib), ##STR1## wherin R is a C.sub.1-6 alkyl group and X is halogen, and acid addition salts thereof. These compounds are biologically active, furthermore they can be applied as intermediates in the synthesis of other pharmaceutically active substances.The compounds of the general formulae (Ia) and (Ib) are prepared by halogenating the respective racemic or optically active 15-hydroxy-E-homoeburnane derivative of the general formula (II), wherein R is as defined above.
    Type: Grant
    Filed: August 5, 1980
    Date of Patent: August 25, 1981
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Lajos Dancsi, Tibor Keve, Ferenc Drexler
  • Patent number: 4283401
    Abstract: A novel process for preparing 11-bromo-vincaminic acid esters of the general formula ##STR1## wherein R.sup.1 and R.sup.2 each stand independently from each other for a C.sub.1-6 alkyl group, comprising the steps of treating a 1-alkyl-1-alkoxycarbonylethyl-octahydroindolo-quinolisine of the general formula ##STR2## wherein R.sup.2 is as defined above and R.sup.3 stands for a C.sub.1-6 alkyl group, with a brominating agent and treating the resulting isomeric mixture of the bromo-derivatives with an alkaline agent or treating the corresponding 14-oxo-E-homo-eburnane being unsubstituted in ring A with a brominating agent and nitrosating the resulting 11-bromo-14-oxo-E-homo-eburnane of the general formula ##STR3## wherein R.sup.2 is as defined above, then subjecting the resulting 11-bromo-14-oxo-15-hydroxyimino-E-homoeburnanes to deoxyimination and treating the 14,15-dioxo-derivatives obtained with a base in an alcohol of the general formula R.sup.1 OH, wherein R.sup.1 is as defined above.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: August 11, 1981
    Assignee: Richter Gedeon Vegyeszeti Gyar RT
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Lajos Dancsi, Tibor Keve, Egon Karpati, Laszlo Szporny
  • Patent number: 4278682
    Abstract: Vasodilating octahydro-indolo[2,3-a]quinolizine derivatives of the formula ##STR1## wherein Q is hydrogen or an A--CH.sub.2 --CH.sub.2 -- group and A is cyano or --COOR, wherein R is C.sub.1-6 alkyl.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: July 14, 1981
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Egon Karpati, Laszlo Szporny
  • Patent number: 4243660
    Abstract: The invention relates to a composite insect attractant for male cabbage moths (Mamestra brassicae) containing (Z)-11-hexadecenyl acetate and (Z)-11-heptadecenyl acetate as active agents in a weight ratio of 70 to 90:80 to 1, optionally along with a liquid or solid adjuvant. An insect trap can contain the composition which is used for attracting and trapping cabbage moth. Their mating is disrupted by air permeation techniques. (Z)-11-heptadecenyl acetate is a synergistically active new compound. The composition according to the invention produces a significantly stronger stimulating reaction on male cabbage moths than the known sex lure compositions.
    Type: Grant
    Filed: April 19, 1979
    Date of Patent: January 6, 1981
    Assignee: Egyt Gyogyszervegyeszeti Gyar
    Inventors: Csaba Szantay, Lajos Novak, Miklos Toth, Jozsef Balla, Bela Stefko, Attila Kis-Tamas
  • Patent number: 4210650
    Abstract: 2-oxo-3-(.beta.-cyanoethyl)-9,10-methylenedioxy-1,2,3,4,6,7-hexahydro-11bH- benzo(a)quinolizidine (SC-118) especially and the corresponding 9,10-diethoxy compound are superior antiphlogistics which are used in effective amounts in antiphlogistic therapy.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: July 1, 1980
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.
    Inventors: Csaba Szantay, Lajos Szabo, Laszlo Toke, Istvan Toth, Sandor Virag, Erzsebet Kanyo, Agoston David
  • Patent number: 4204999
    Abstract: A process for the preparation of optically active or racemic lactone diol derivatives of the formula ##STR1## (for use as intermediates in the Corey prostaglandin synthesis). Optically active or racemic lactone diol derivatives are inclosed, in whichR.sup.3 and R.sup.4 are the same or different and stand for a hydrogen, or a lower alkanoyl optionally substituted with one, two or three halogen atoms, or form together a ##STR2## group, in which R.sup.5 and R.sup.6 are the same or different and stand for a hydrogen, alkyl or aryl, with a process for preparing them.According to the invention the above compound are prepared by reacting optically active or racemic lactone of the formula II with formaldehyde or with a formaldehyde polymerisate, in the presence of the mixture of a strong acid and water or of a lower alkane carboxylic acid optionally substituted with one, two or three halogen atoms, and then optionally subjecting the obtained compound of the general formula I, in which R.sup.3 and/or R.sup.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: May 27, 1980
    Assignee: Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt.
    Inventors: Istvan Tomoskozi, Gabor Kovacs, Istvan Szekely, Vilmos Simonidesz, Marianna Lovasz nee Gaspar, Borbala Keresztesnee Ordog, Julia Remport nee Radoczi, Istvan Stadler, Zsuzsa Visky nee Gombos, Csaba Szantay
  • Patent number: 4199505
    Abstract: A process for the preparation of alkaloids of the leurosine type having the formula I ##STR1## and the acid addition salts thereof. In the formula I R is hydrogen or methyl. The compounds prepared according to the invention are known compounds showing cytostatic activity.
    Type: Grant
    Filed: May 19, 1978
    Date of Patent: April 22, 1980
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Csaba Szantay, Lajos Szabo, Katalin Honty, Katalin Nogradi, Karola Jovanovics, Eszter Dezseri, Lajos Dancsi, Csaba Lorincz, Bela Szarvady, Lajos Kovacs
  • Patent number: 4193998
    Abstract: There are provided new compounds of the formula I ##STR1## wherein both R.sup.1 moieties stand for an alkyl group having 1 to 4 carbon atoms or form together a methylene bridge,R.sup.2 is cyano or an alkoxycarbonyl group having 1 to 4 carbon atoms in the alkoxy position,R.sup.3 is hydroxy or alkanoyloxy having 1 to 4 carbon atoms in the alkoxy position in .alpha.-position or .beta.-steric position,and acid addition salts thereof. There is also provided a process for the preparation of the compounds of the formula I.
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: March 18, 1980
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara RT
    Inventors: Csaba Szantay, Lajos Szabo, Istvan Toth, Erzsebet Kanyo, Gyula Sebestyen, Sandor Virag
  • Patent number: 4176122
    Abstract: A process for the preparation of bicyclic enon compounds in which a lactone diol is selectively oxidized to obtain a hydroxy-aldehyde with one hydroxyl group and, without isolation, the hydroxy-aldehyde is reacted with a phosphorus compound. The reaction product can be acylated or silylated.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: November 27, 1979
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek
    Inventors: Istvan Szekely, Istvan Tomoskozi, Gabor Kovacs, Vilmos Simonidesz, Marianna Lovasz nee Gaspar, Borbala nee Ordog Keresztes, Julia nee Radoczi Remport, Istvan Stadler, Zsuzsa nee Gombos Visky, Csaba Szantay
  • Patent number: 4173642
    Abstract: New pharmacologically active octahydro-indolo[2,3-a]quinolizine derivatives of the formula ##STR1## wherein Q is hydrogen or an A--CH.sub.2 --CH.sub.2 -- group and A is cyano or -COOR, wherein R is C.sub.1-6 alkyl are prepared by reacting 2,3,4,6,7,12-hexahydro-indolo[2,3-a]quinolizine with a compound of the formula CH.sub.2 .dbd.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: November 6, 1979
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt
    Inventors: Csaba Szantay, Lajos Szabo, Gyorgy Kalaus, Egon Karpati, Laszlo Szporny