Patents by Inventor Csilla Meszaros
Csilla Meszaros 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).
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Patent number: 4221739Abstract: Compounds of the formula (I), ##STR1## wherein R.sub.1 and R.sub.2 each is saturated or unsaturated, straight-chained or branched alkyl phenyl, alkylphenyl or saturated or unsaturated cycloalkyl;but when R.sub.1 is methyl, R.sub.2 is a group other than methyl, are prepared by reacting a compound of the formula (II), ##STR2## wherein X is halogen, with a secondary amine of the formula (III),R.sub.1 --NH--R.sub.2 (III)The new compounds of the formula (I), as well as their pharmaceutically acceptable acid addition salts are active primarily in the induction of liver microsomal enzyme, but also possess antipyretic activity.Type: GrantFiled: August 12, 1975Date of Patent: September 9, 1980Assignee: Richter Gedeon Vegyeszeti Gyar R.T.Inventors: Edit Toth, Jozsef Torley, Eva Palosi, Szabolos Szeberenyi, Laszlo Szporny, Sandor Gorog, Csilla Meszaros
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Patent number: 4201723Abstract: New compounds of the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each is a saturated or unsaturated, straight-chained or branched alkyl group, an aralkyl group, a saturated or unsaturated cycloalkyl group or an aryl group, orR.sub.1 and R.sub.2 together with the adjacent nitrogen atom forms a substituted or unsubstituted heterocyclic group with or without a further oxygen or nitrogen heteroatom, andR.sub.3 is hydrogen or an acyl group derived from a C.sub.1-18 carboxylic acid. The compounds are prepared by reducing the corresponding nitro compounds of the formula (II) ##STR2## and optionally acylating the obtained product. The compounds of the formula (I) and their acid addition salts and quaternary ammonium salts are active primarily in the induction of liver microsomal enzymes, but they also possess valuable antipyretic activity and a yohimbine lethality increasing effect characteristic of antidepressants.Type: GrantFiled: June 22, 1977Date of Patent: May 6, 1980Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Edit Toth, Jozsef Torley, Eva Palosi, Szaboles Szeberenyi, Laszlo Szporny, Sandor Gorog, Csilla Meszaros
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Patent number: 4094908Abstract: The invention relates to new .alpha.Type: GrantFiled: September 9, 1976Date of Patent: June 13, 1978Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Edit Toth, Jozsef Torley, Szabolcs Szeberenyi, Eva Palosi, Laszlo Szporny, Sandor Gorog, Csilla Meszaros
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Patent number: 4064121Abstract: New compounds of the general formula (I), ##STR1## wherein R.sub.1 and R.sub.2 each stand for a saturated or unsaturated, straight-chained or branched alkyl group, an aralkyl group, a saturated or unsaturated cycloalkyl group or an aryl group, orR.sub.1 and R.sub.2 together with the adjacent nitrogen atom may form an optionally substituted heterocyclic group optionally containing a further oxygen or nitrogen hetero atom,But if R.sub.1 stands for methyl, R.sub.2 may only stand for a group other than methyl, are prepared by reacting a compound of the general formula ##STR2## wherein X stands for halogen, with a secondary amine of the general formula (III),r.sub.1 --nh--r.sub.2 (iii)wherein R.sub.1 and R.sub.2 each have the same meanings as defined above.The new compounds of the general formula (I), as well as their pharmaceutical acceptable acid addition salts or quaternary ammonium salts are active primarily in the induction of liver microsomal enzyme, but they also possess antipyretic activity.Type: GrantFiled: August 12, 1975Date of Patent: December 20, 1977Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Edit Toth, Jozsef Torley, Eva Palosi, Szaboles Szeberenyi, Laszlo Szporny, Sandor Gorog, Csilla Meszaros
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Patent number: 4039589Abstract: A compound of the formula: ##STR1## wherein Z is ethyl or vinyl,R.sub.1 and R.sub.2 are hydrogen, lower alkyl, lower alkenyl or trihalomethyl,R.sub.3 and R.sub.4 are hydrogen, lower alkyl, lower alkenyl, trihalomethyl, cyclopentyl, benzyl or phenyl, andR.sub.5 is lower alkyl, lower alkenyl, trihalomethyl, cyclopentyl, benzyl, or phenyl with the proviso that where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is hydrogen, R.sub.5 is not methyl attached to the 4-position of the benzene ring, or a pharmaceutically acceptable acid addition or quaternary ammonium salt thereof is disclosed as effective in the regulation of the liver microsomal enzyme system.Type: GrantFiled: August 8, 1974Date of Patent: August 2, 1977Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Edit Toth, Jozsef Torley, Szabolcs Szeberenyi, Eva Palosi, Laszlo Szporny, Sandor Gorog, Csilla Meszaros
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Patent number: 3989701Abstract: New compounds of the general formula (I) ##SPC1##whereinR.sub.1 and R.sub.2 each is a saturated or unsaturated, straight-chained or branched alkyl group, an aralkyl group, a saturated or unsaturated cycloalkyl group or an aryl group, orR.sub.1 and R.sub.2 together with the adjacent nitrogen atom may form substituted or unsubstituted heterocyclic group with or without a further oxygen or nitrogen heteroatom, andR.sub.3 is hydrogen or an acyl group derived from a C.sub.1.sub.-18 carboxylic acid.The compounds are prepared by reducing the corresponding nitro compounds of the general formula (II) ##SPC2##and optionally acylating the obtained product.The compounds of the general formula (I) and their acid addition salts and quaternary ammonium salts are active primarily in the induction of liver microsomal enzyme, but they also possess valuable antipyretic activity and a yohimbine lethality increasing effect characteristic of antidepressants.Type: GrantFiled: July 3, 1974Date of Patent: November 2, 1976Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Edit Toth, Jozsef Torley, Eva Palosi, Szaboles Szeberenyi, Laszlo Szporny, Sandor Gorog, Csilla Meszaros
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Patent number: 3975390Abstract: New compounds of the general formula (I), ##SPC1##whereinR.sub.1 and R.sub.2 each stand for a saturated or unsaturated, straight-chained or branched alkyl group, an aralkyl group, a saturated or unsaturated cycloalkyl group or an aryl group, orR.sub.1 and R.sub.2 together with the adjacent nitrogen atom may form an optionally substituted heterocyclic group optionally containing a further oxygen or nitrogen hetero atom,But if R.sub.1 stands for methyl, R.sub.2 may only stand for a group other than methyl,Are prepared by reacting a compound of the general formula (II), ##SPC2##wherein X stands for halogen, with a secondary amine of the general formula (III),r.sub.1 --nh--r.sub.2 (iii)wherein R.sub.1 and R.sub.2 each have the same meanings as defined above.The new compounds of the general formula (I), as well as their pharmaceutical acceptable acid addition salts or quaternary ammonium salts are active primarily in the induction of liver microsomal enzyme, but they also possess antipyretic activity.Type: GrantFiled: August 12, 1975Date of Patent: August 17, 1976Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Edit Toth, Jozsef Torley, Eva Palosi, Szaholes Szeberenyi, Laszlo Szporny, Sandor Gorog, Csilla Meszaros
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Patent number: 3957777Abstract: New compounds of the formula (I), ##SPC1##whereinR.sub.1 and R.sub.2 each stand for a saturated or unsaturated, straightchained or branched alkyl group, an aralkyl group, a saturated or unsaturated cycloalkyl group or an aryl group, orR.sub.1 and R.sub.2 together with the adjacent nitrogen atom form a substituted or unsubstituted heterocyclic group which can contain a further oxygen or nitrogen hetero atom,But when R.sub.1 is methyl, R.sub.2 is a group other than methyl, are prepared by reacting a compound of the formula (II), ##SPC2##wherein X stands for halogen, with a secondary amine of the general formula (III),r.sub.1 --nh--r.sub.2. (iii)the new compounds of the general formula (I), as well as their pharmaceutical acceptable acid addition salts or quaternary ammonium salts are active primarily in the induction of liver microsomal enzyme, but they also possess antipyretic activity.Type: GrantFiled: July 3, 1974Date of Patent: May 18, 1976Assignee: Richter Gedeon Vegyeszeti Gyar Rt.Inventors: Edit Toth, Jozsef Torley, Eva Palosi, Szaboles Szeberenyi, Laszlo Szporny, Sandor Gorog, Csilla Meszaros