Patents Examined by Robert W. Rausuer
  • Intermediate for (R)-3-(4-Bromobenzyl)-1-(3,5-dichlorophenyl)-5-iodo-3-methyl-1-H-imidazo[1,2-&agr;]imidazol-2-one
    Patent number: 6458986
    Abstract: A novel process for the preparation of (R)-3-(4-Bromobenzyl)-1-(3,5-dichlorophenyl)-5-iodo-3-methyl-1-H-imidazo[1,2-&agr;]imidazol-2-one (1): This compound is useful as an intermediate in the preparation of certain small molecules that are useful in the treatment or prevention of inflammatory and immune cell-mediated diseases. The present invention also relates to certain intermediates used in this novel process.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: October 1, 2002
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Rogelio P. Frutos, Michael Dale Johnson
  • Process for the preparation of isoflavone compounds
    Patent number: 6410699
    Abstract: A process for preparation of isoflavone compounds, comprising separating isoflavone compounds from a starting material containing isoflavone compounds and/or their precursors by means of extraction, wherein the starting material is subjected to removal of fat prior to the separation of isoflavone compounds by means of extraction.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: June 25, 2002
    Assignee: Nichimo Kabushiki Kaisha
    Inventors: Minoru Takebe, Jitsuo Shiraishi
  • 1,3,6-trihydro-6-aza-3-oxapentalen-2-one derivatives for the treatment of neoplasia
    Patent number: 5939417
    Abstract: 1,3,6-Trihydro-6-Aza-3-Oxapentalen-2-One Derivatives for inhibiting neoplastic conditions.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: August 17, 1999
    Assignee: Cell Pathways Inc
    Inventors: Gerhard Sperl, Rifat Pamukcu