Patents by Inventor James Bergan

James Bergan 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 leukotriene antagonists
    Patent number: 6320052
    Abstract: The present invention relates to a process for the preparation of a compound of formula (I) or a sodium salt thereof wherein HET is 7-chloroquinolin-2-yl or 6,7-difluoroquinolin-2-yl, which comprises: reacting the dilithium dianion of 1-(mercapto-methyl)cyclopropaneacetic acid with a compound of formula (II) wherein HET is as defined above and L is arylsulfonyl or alkylsulfonyl. The invention further provides the dicyclohexylamine salt of a compound of formula (I).
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: November 20, 2001
    Assignee: Merck & Co., Inc.
    Inventors: Mahadevan Bhupathy, Daniel R. Sidler, James M. McNamara, Ralph P. Volante, James Bergan
  • Process for the preparation of leukotriene anatgonists
    Patent number: 5614632
    Abstract: The present invention relates to a process for the preparation of a compound of formula (I) or a sodium salt thereof ##STR1## wherein HET is 7-chloroquinolin-2-yl or 6,7-difluoroquinolin-2-yl, which comprises: reacting the dilithium dianion of 1-(mercaptomethyl)cyclopropaneacetic acid with a compound of formula (II) ##STR2## wherein HET is as defined above and L is arylsulfonyl or alkylsulfonyl. The invention further provides the dicyclohexylamine salt of a compound of formula (I).
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: March 25, 1997
    Assignee: Merck & Co., Inc.
    Inventors: Mahadevan Bhupathy, James M. McNamara, Daniel R. Sidler, Ralph P. Volante, James Bergan