Patents by Inventor Eva Poczik

Eva Poczik 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).

  • 1,4,Dihydro-pyridine intermediates
    Patent number: 5216157
    Abstract: The invention relates to a process for the preparation of dimethyl-1,4-dihydro-2,6-dimethyl-4-(2'-nitro-phenyl)-pyridine-3,5-dicarbo xylate of the Formula I ##STR1## which comprises a) reacting a compound of the general Formula II ##STR2## (wherein n is 1 or 3; if n is 1, then R stands for a group of the Formula (a) ##STR3## and if n is 3, then R represents hydrogen) with methyl acetoacetate of the Formula IIICH.sub.3 --CO--CH.sub.2 --COOCH.sub.3 (III)and optionally with an amino compound of the general Formula IV ##STR4## (wherein Z is a group of the Formula (c), ##STR5## k is 1 and both symbols p are 0; or Z stands for a C.sub.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: June 1, 1993
    Assignee: EGIS Gyogyszergyar
    Inventors: Pal Benko, Daniel Bozsing, Laszlo Levai, Gyorgyi Kovanyi nee Lax, Gyorgy Mikite, Peter Tompe, Eva Furdyga, Ilona Dinnyes nee Nagy, Eva Poczik, Gyorgyi Zalavari nee Dosa, Ivan Beck, Istvan Simonyi, Kalman Nagy, Janos Imre, Erzsebet Kiss nee Bertok, Eva J. Tajthy nee Juhasz, Attila Mandi, Frigyes Gorgenyi
  • Process for the preparation of 1,4-dihydro-pyridine derivatives
    Patent number: 5126457
    Abstract: The invention is directed to processes for the preparation of dimethyl-1,4-dihydro-2,6-dimethyl-4-(2'-nitrophenyl)-pyridine-3,5-dicarbox ylate by reacting 1-methoxy-1-(2'-nitrophenyl)-N-(2'-nitrophenyl)methylene methanamie or 1-(2'-nitrophenyl)-N,N'-bis-(2'-nitrophenyl) methylene methanediamine with methyl acetoacetate in the presence of an amine compound or by reacting the monomeric or trimeric from of 2-nitrobenzaldimine with methyl acetoacetate.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: June 30, 1992
    Assignee: Egis Gyogyszergyar
    Inventors: Pal Benko, Daniel Bozsing, Laszlo Levai, Gyorgyi Kovanyi nee Lax, Gyorgy Mikite, Peter Tompe, Eva Furdyga, Ilona Dinnyes nee Nagy, Eva Poczik, Gyorgyi Zalavari nee Dosa, Ivan Beck, Istvan Simonyi, Kalman Nagy, Janos Imre, Erzsebet Kiss nee Bertok, Eva J. Tajthy nee Juhasz, Attila Mandi, Frigyes Gorgenyi