Patents by Inventor Ralph Haerter

Ralph Haerter 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).

  • NEW SYNTHESIS OF L-PHENYLALANINE ESTER
    Publication number: 20240010607
    Abstract: The present invention relates to a process for producing L-phenylalanine ester which comprises the reaction of L-phenylalanine with an alcohol in the presence of thionyl chloride.
    Type: Application
    Filed: November 9, 2021
    Publication date: January 11, 2024
    Inventors: Werner BONRATH, Alexander GAA, Ralph HAERTER
  • NEW SYNTHESIS OF L-PHENYLALANINE BUTYRAMIDE
    Publication number: 20230416189
    Abstract: The present invention relates to a process for producing L-phenylalanine butyramide.
    Type: Application
    Filed: November 9, 2021
    Publication date: December 28, 2023
    Inventors: Werner BONRATH, Alexander GAA, Ralph HAERTER
  • NEW SYNTHESIS OF L-PHENYLALANINE AMIDE
    Publication number: 20230416188
    Abstract: The present invention relates to a process for producing L-phenylalanine amide.
    Type: Application
    Filed: November 9, 2021
    Publication date: December 28, 2023
    Inventors: Werner BONRATH, Alexander GAA, Ralph HAERTER
  • Synthesis of 4-amino-pyrimidines scaffolds
    Patent number: 8198443
    Abstract: Process for the manufacture of a compound of the structure (I) with R1=hydrogen, alkyl (C1-C10, linear, cyclic or branched, aliphatic or aromatic), NR?R? (wherein R? and R? are independently selected from H, alkyl [C1-C10, linear, cyclic or branched, aliphatic or aromatic] and R2=CH2R3 wherein R3 is selected from NHR1?? (with R??=C(O)H, C(O)CH3, C(O)alkyl, CH2C6H2(OMe)3 or other saponifiable residues), alkyl (C1-C10, linear, cyclic or branched) aromatic residues, heteroaryl residues, substituted aryl residues, e.g. 3,4,5-trimethoxy-phenyl) wherein 1 equivalent of an ?-formyl-propionitrile salt is reacted with 0.75 to 2 equivalents of an acetamidine salt in the presence of a Lewis acid.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: June 12, 2012
    Assignee: DSM IP Assets B.V.
    Inventors: Werner Bonrath, Ralph Haerter, Reinhard Karge, Ulla Letinois
  • Process for the preparation of stilbene derivatives
    Patent number: 7820848
    Abstract: A novel process for the preparation of resveratrol and piceatannol and esters thereof involving a Heck type reaction is disclosed. Also disclosed are novel intermediates in that process.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: October 26, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Ralph Haerter, Ulrike Lemke, Alexander Radspieler
  • SYNTHESIS OF 4-AMINO-PYRIMIDINES SCAFFOLDS
    Publication number: 20100016591
    Abstract: Process for the manufacture of a compound of the structure (I) with R1=hydrogen, alkyl (C1-C10, linear, cyclic or branched, aliphatic or aromatic), NR?R? (wherein R? and R? are independently selected from H, alkyl [C1-C10, linear, cyclic or branched, aliphatic or aromatic] and R2=CH2R3 wherein R3 is selected from NHR1?? (with R??=C(O)H, C(O)CH3, C(O)alkyl, CH2C6H2(OMe)3 or other saponifiable residues), alkyl (C1-C10, linear, cyclic or branched) aromatic residues, heteroaryl residues, substituted aryl residues, e.g. 3,4,5-trimethoxy-phenyl) wherein 1 equivalent of an ?-formyl-propionitrile salt is reacted with 0.75 to 2 equivalents of an acetamidine salt in the presence of a Lewis acid.
    Type: Application
    Filed: January 17, 2008
    Publication date: January 21, 2010
    Inventors: Werner Bonrath, Ralph Haerter, Reinhard Karge, Ulla Letinois
  • Process for the preparation of stilbene derivatives
    Publication number: 20070197819
    Abstract: A novel process for the preparation of resveratrol and piceatannol and esters thereof involving a Heck type reaction is disclosed. Also disclosed are novel intermediates in that process.
    Type: Application
    Filed: August 31, 2004
    Publication date: August 23, 2007
    Inventors: Ralph Haerter, Ulrike Lemke, Alexander Radspieler