Patents Represented by Attorney John Thallemer

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  • Process for the preparation of phenethylamine derivatives
    Patent number: 7141697
    Abstract: Disclosed is a process for the preparation of a compound of formula wherein R1 is hydrogen, hydroxyl, or unsubstituted or substituted alkyl or alkoxy, R2 is hydrogen or a substituent which can be converted to hydrogen, and n is 0, 1 or 2, comprising hydrogenating a compound of formula wherein R1, R2 and n are as defined above, in the presence of a nickel or cobalt catalyst.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: November 28, 2006
    Assignee: Sandoz AG
    Inventors: Niranjan Paingankar, Vilas N. Mumbaikar, Vadiraj S. Ekkundi, Hans-Peter Jalett, Urs Siegrist, Paul Adriaan Van Der Schaaf, Frank Bienewald, Martin Studer, Stefan Burkhardt