Patents by Inventor Stanislav Simek

Stanislav Simek 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).

  • Method of production of (?)-(S)-3-[1-(dimethylamino)ethyl]phenyl-N-ethyl-N-methylcarbamate
    Patent number: 7544840
    Abstract: The compound of formula (III), optionally its alkaline salt, is reacted with a compound of formula VII, wherein X is a leaving group, resulting in (S)-rivastigmine of formula II, which is then optionally converted into (S)-rivastigmine hydrogentartrade of formula I.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: June 9, 2009
    Assignee: Zentiva, a.s.
    Inventors: Hana Stepankova, Josef Hajicek, Stanislav Simek
  • Method of production of (-)-(s)-3-[1-(dimethylamino)ethyl]phenyl-n-ethyl-n-methylcarbamate
    Publication number: 20060122417
    Abstract: The compound of formula (III), optionally its alkaline salt, is reacted with a compound of formula VII, wherein X is a leaving group, resulting in (S)-rivastigmine of formula II, which is then optionally converted into (S)-rivastigmine hydrogentartrade of formula I.
    Type: Application
    Filed: October 21, 2003
    Publication date: June 8, 2006
    Applicant: ZENTIVA, A.S.
    Inventors: Hana Stepankova, Josef Hajicek, Stanislav Simek