Patents by Inventor Iren Pali nee Ivanics

Iren Pali nee Ivanics 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).

  • Chemical process for the preparation of pharmaceutically active compounds
    Patent number: 5023337
    Abstract: The present invention is directed to the preparation of benzimidazole derivatives of the formula (I), ##STR1## wherein A=stands for S, SO or SO.sub.2,R.sup.1 =stands for C.sub.1-4 alkyl group,R.sup.2 =stands for C.sub.1-4 alkyl, C.sub.3-7 cycloalkyl or C.sub.6-10 aryl or aralkyl,comprising reacting a sulphochloride of the formula (II) ##STR2## with an alkyl aluminum compound of the formula (III).R.sub.n.sup.2 AlClhd (3-n) (III)The reaction is performed in one step.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: June 11, 1991
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.
    Inventors: Ferenc Sperber, Csaba Huszar, Attila Nemeth, Eva Somfai, Iren Pali nee Ivanics