Patents by Inventor William Martin Rennells

William Martin Rennells 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).

  • Methods for synthesis of amino-tetrahydroisoquinoline ring compounds
    Patent number: 6608193
    Abstract: Methods of preparing amino-substituted-tetrahydroisoquinoline ring compounds include the steps of providing a support-bound amino-substituted-tetrahydroisoquinoline compound; forming an intermediate by reacting the support-bound amino-substituted-tetrahydroisoquinoline compound with a reagent; and cyclizatively cleaving the support-bound amino-substituted-tetrahydroisoquinoline compound to form the amino-substituted-tetrahydroisoquinoline ring compound.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: August 19, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Song Liu, William Martin Rennells
  • Methods for synthesis of amino-tetrahydroisoquinoline-sulfonamide hydroxamic acids
    Patent number: 6566524
    Abstract: Methods of preparing an amino-substituted-tetrahydroisoquinoline-sulfonamide hydroxamic acid include the steps of providing an amino-substituted-tetrahydroisoquinoline-carboxylate attached to a solid support; reacting the ring nitrogen of the amino-tetrahydroisoquinoline-carboxylate with a sulfonyl chloride; and cleaving the intermediate from the solid support to form an amino-tetrahydroisoquinoline-sulfonamide hydroxamic acid.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: May 20, 2003
    Assignee: The Procter & Gamble Co.
    Inventors: Song Liu, William Martin Rennells
  • Methods for synthesis of amino-tetrahydroisoquinoline ring compounds
    Publication number: 20020077480
    Abstract: Methods of preparing amino-substituted-tetrahydroisoquinoline ring compounds include the steps of providing a support-bound amino-substituted-tetrahydroisoquinoline compound; forming an intermediate by reacting the support-bound amino-substituted-tetrahydroisoquinoline compound with a reagent; and cyclizatively cleaving the support-bound amino-substituted-tetrahydroisoquinoline compound to form the amino-substituted-tetrahydroisoquinoline ring compound.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 20, 2002
    Inventors: Song Liu, William Martin Rennells
  • Methods for synthesis of amino-tertahydroisoquinoline-sulfonamide hydroxamic acids
    Publication number: 20020058815
    Abstract: Methods of preparing an amino-substituted-tetrahydroisoquinoline-sulfonamide hydroxamic acid include the steps of providing an amino-substituted-tetrahydroisoquinoline-carboxylate attached to a solid support; reacting the ring nitrogen of the amino-tetrahydroisoquinoline-carboxylate with a sulfonyl chloride; and cleaving the intermediate from the solid support to form an amino-tetrahydroisoquinoline-sulfonamide hydroxamic acid.
    Type: Application
    Filed: December 21, 2001
    Publication date: May 16, 2002
    Inventors: Song Liu, William Martin Rennells
  • Methods for synthesis of amino-tetrahydroisoquinoline-carboxylic acids
    Publication number: 20020055637
    Abstract: Methods of preparing an amino-substituted-tetrahydroisoquinoline-carboxylic acid include the steps of providing a support-bound amino-substituted-tetrahydroisoquinoline-carboxylate wherein the ring nitrogen has a protecting group; attaching a first moiety to the amino-substituted group of the support-bound amino-substituted-tetrahydroisoquinoline-carboxylate; de-protecting the ring nitrogen; attaching a second moiety to the ring nitrogen to form a support-bound intermediate; and cleaving the support-bound intermediate from the solid support to form the carboxylic acid.
    Type: Application
    Filed: December 21, 2001
    Publication date: May 9, 2002
    Inventors: Song Liu, William Martin Rennells