Patents by Inventor Cameron John Cowden

Cameron John Cowden 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).

  • ? v integrin receptor antagonists
    Patent number: 7288655
    Abstract: The present invention relates to the synthesis of intermediates for the preparation of compounds of formula (A): wherein n is 2 or 3 and various salt forms of these compounds.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: October 30, 2007
    Assignees: Merck & Co., Inc., Merck Sharp & Dohme Ltd.
    Inventors: Brian Christopher Bishop, Karel Marie Joseph Brands, Ian Frank Cottrell, Cameron John Cowden, Antony John Davies, Stephen Philip Keen, David Ross Lieberman, Gavin William Stewart
  • Process for making nitric oxide releasing prodrugs of diaryl-2-(5H)-furanones as cyclooxygenase-2 inhibitors
    Publication number: 20050192346
    Abstract: The invention encompasses a novel process for making compounds of Formula I which are prodrugs of cyclooxygenase-2 selective inhibitors that convert in vivo to diaryl-2-(5H)-furanones and also liberate nitric oxide in vivo. As such, the compounds made by the present invention may be co-dosed with low-dose aspirin to treat chronic cyclooxygenase-2 mediated diseases or conditions, effectively reduce the risk of thrombotic cardiovascular events and potentially renal side effects and at the same time reduce the risk of GI ulceration or bleeding. The present invention describes an efficient and economical process for the preparation of 2,3-disubstituted (2Z)-4-acetoxybut-2-enoate derivatives that is useful for the production of kilogram quantities of material for preclinical and clinical use.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 1, 2005
    Inventors: Yao-Jun Shi, F. Conrad Engelhardt, Cameron John Cowden, David Conlon, Brenda Pipik
  • Process for the preparation of 1,2,4-triazolin-5-one derivatives
    Patent number: 6673939
    Abstract: The present invention relates to a process for the preparation of a compound of formula (I) wherein R represents hydrogen, C1-10alkyl, haloC1-10alkyl or aryl; which are useful intermediates in the preparation of morpholine derivatives of formula (A). Compounds of formula (A) are useful as therapeutic agents.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: January 6, 2004
    Assignee: Merck Sharp & Dohme Ltd.
    Inventor: Cameron John Cowden
  • Substituted triazolo-pyridazine derivative, pharmaceutical compositions made therefrom
    Patent number: 6630471
    Abstract: 7-(1,1 -Dimethylethyl)-6-(2-ethyl-2H-1,2,4-triazol-3-ylmethoxy)-3-(2-fluorophenyl)-1,2,4-triazolo[4,3-b]pyridazine, and pharmaceutically acceptable salts thereof are selective ligands for GABAA receptors useful in the treatment of disorders of the central nervous system.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: October 7, 2003
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: William Robert Carling, Jose Luis Castro Pineiro, Cameron John Cowden, Antony John Davies, Andrew Madin, James Francis McCabe, Gareth Edward Pearce, Leslie Joseph Street
  • Process for the preparation of 1,2,4- triazolin-5-one derivatives
    Publication number: 20030187274
    Abstract: The present invention relates to a process for the preparation of a compound of formula (I) wherein R represents hydrogen, C1-10alkyl, haloC1-10alkyl or aryl; which are useful intermediates in the preparation of morpholine derivatives of formula (A). Compounds of formula (A) are useful as therapeutic agents.
    Type: Application
    Filed: February 5, 2003
    Publication date: October 2, 2003
    Inventor: Cameron John Cowden
  • Chemical synthesis of spirocyclic piperidines by double ring-closing metathesis
    Patent number: 6515126
    Abstract: The present invention relates to a process for the preparation of a compound of formula (I) wherein Ts is a tosylate group and R is an alkyl group, an unsubstituted phenyl or substituted phenyl ring, or a benzyl or substituted benzyl group; which comprises: (i) cyclising a compound of formula (II) in the presence of a suitable catalyst; and (ii) purifying and collecting the resultant compound of formula (I).
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: February 4, 2003
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Michael Stewart Ashwood, Ian Frank Cottrell, Cameron John Cowden, Debra Jane Wallace