Patents by Inventor Frieder Mitzel

Frieder Mitzel 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).

  • Process for the preparation of (2R,3S)-3-phenylisoserine methyl ester acetate salt
    Patent number: 8106231
    Abstract: A process for the enantioselective preparation of (2R,3S)-3-phenylisoserine methyl ester acetate salt of formula (I) which is an useful building block for the synthesis of taxane derivatives. The process involves the resolution of racemic threo-phenylisoserine amide and its conversion into (I).
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: January 31, 2012
    Assignee: Indena S.p.A.
    Inventors: Daniele Ciceri, Bruno Gabetta, Nicola Vignola, Frieder Mitzel, Beat T. Weber
  • PROCESS FOR THE PREPARATION OF (2R,3S)-3-PHENYLISOSERINE METHYL ESTER ACETATE SALT
    Publication number: 20100168460
    Abstract: A process for the enantioselective preparation of (2R,3S)-3-phenylisoserine methyl ester acetate salt of formula (I) which is an useful building block for the synthesis of taxane derivatives. The process involves the resolution of racemic threo-phenylisoserine amide and its conversion into (I).
    Type: Application
    Filed: February 11, 2008
    Publication date: July 1, 2010
    Inventors: Daniele Ciceri, Bruno Gabetta, Nicola Vignola, Frieder Mitzel, Beat T. Weber
  • Process for the preparation of 1-[cyano(4-hydroxyphenyl)methyl]cyclohexanol compounds
    Publication number: 20070021627
    Abstract: Process for the preparation of I-[cyano(phenyl)methyl]cyclohexanol compounds of general formula (I): in which R1 is hydrogen, (C1-4)alkyl or (C1-4)alkoxy, wherein a compound of general formula (II): in which R1 is as defined above, is reacted with cyclohexanone, the reaction being carried out in the presence of an organic or inorganic base, and this organic or inorganic base being present in the reaction mixture in at least an equimolar amount, based on the amount of the compound of general formula (II).
    Type: Application
    Filed: June 29, 2006
    Publication date: January 25, 2007
    Inventors: Frieder Mitzel, Beat Weber, Hans-Rudolf Marti, Richard Haldimann