Patents by Inventor Elwyn Peter Davies

Elwyn Peter Davies 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).

  • Patent number: 6054593
    Abstract: The present invention relates to particular forms of a novel 1-substituted-N-[2-methyl-1-(trifluoroacetyl)propyl]pyrrolidine-2-carboxam ide which are inhibitors of human leukocyte elastase (HLE), also known as human neutrophil elastase (HNE), making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated. The invention also includes pharmaceutical compositions containing such forms, processes for preparing the forms and intermediates useful in the synthesis of the forms.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: April 25, 2000
    Assignee: Zeneca Limited
    Inventors: Chris Allan Veale, Peter Robert Bernstein, Elwyn Peter Davies
  • Patent number: 6048889
    Abstract: The present invention relates to particular forms of a novel 1-substituted-N-[2-methyl-1-(trifluoroacetyl)propyl]pyrrolidine-2-carboxam ide which are inhibitors of human leukocyte elastase (HLE), also known as human neutrophil elastase (HNE), making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated. The invention also includes pharmaceutical compositions containing such forms, processes for preparing the forms and intermediates useful in the synthesis of the forms.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: April 11, 2000
    Assignee: Zeneca Limited
    Inventors: Chris Allan Veale, Peter Robert Bernstein, Elwyn Peter Davies
  • Patent number: 6037363
    Abstract: The present invention relates to pyrrolidine derivative compounds, and more particularly to the compound (S)-1-[(S)-2-(4-methoxybenzamido)-3-methylbutyryl]-N-[(S)-2-methyl-1-(trif luoroacetyl)propyl]pyrrolidine-2-carboxamide, shown by the formula I, a pharmaceutical composition comprising this compound in a crystalline form and a process for preparing the pharmaceutical composition. The compound of formula I is an inhibitor of human neutrophil elastase and is useful in the treatment of diseases in which the enzyme is implicated, such as, for example, emphysema and acute respiratory distress syndrome (ARDS).
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: March 14, 2000
    Assignee: Zeneca Limited
    Inventors: Stephen John Pegg, George Joseph Sependa, Elwyn Peter Davies, Chris Allan Veale
  • Patent number: 5907043
    Abstract: The present invention relates to pyrrolidine derivatives, and more particularly to the compound (S)-1-?(S)-2-(4-methoxybenzamido)-3-methylbutyryl!-N-?(S)-2-methyl-1-(trif luoroacetyl)propyl!pyrrolidine-2-carboxamide, shown by formula I, and solvates thereof. The present invention also provides pharmaceutical compositions, intermediates and methods of preparation of the compound. The compound of formula I is an inhibitor of human neutrophil elastase and is useful in the treatment of diseases in which the enzyme is implicated, such as, for example, emphysema and acute respiratory distress syndrome (ARDS).
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: May 25, 1999
    Assignee: Zeneca Limited
    Inventors: Stephen John Pegg, George Joseph Sependa, Elwyn Peter Davies, Chris Allan Veale
  • Patent number: 5861516
    Abstract: A process for preparing an antifungal azole compound of formula (I) by reacting an epoxide with hydrazine to from a hydrazino compound which is subsequently reacted with an iminoether. The amidrazone product is subsequently reacted with an orthoformate to provide the antifungal azole. The azole, known as ZD0870, shows good activity against human fungal infections including Candida albicans, Cryptococcus neoformans and Aspergillus fumigatus.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: January 19, 1999
    Assignee: Zeneca Limited
    Inventors: Elwyn Peter Davies, John David Pittam, Keith Blakeney Mallion, Nigel Philip Taylor
  • Patent number: 5808097
    Abstract: The present invention relates to particular forms of a novel 1-substituted-N-?2-methyl-1-(trifluoroacetyl)propyl!pyrrolidine-2-carboxam ide which are inhibitors of human leukocyte elastase (HLE), also known as human neutrophil elastase (HNE), making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated. The invention also includes pharmaceutical compositions containing such forms, processes for preparing the forms and intermediates useful in the synthesis of the forms.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: September 15, 1998
    Assignee: Zeneca Limited
    Inventors: Chris Allan Veale, Peter Robert Bernstein, Elwyn Peter Davies
  • Patent number: 5739157
    Abstract: The present invention relates to pyrrolidine derivatives, and more particularly to the compound (S)-1-?(S)-2-(4-methoxybenzamido)-3-methylbutyryl!-N-?(S)-2-methyl-1-(trif luoroacetyl)propyl!pyrrolidine-2-carboxamide, shown by formula I, and solvates thereof. The present invention also provides pharmaceutical compositions, intermediates and methods of preparation of the compound. The compound of formula I is an inhibitor of human neutrophil elastase and is useful in the treatment of diseases in which the enzyme is implicated, such as, for example, emphysema and acute respiratory distress syndrome (ARDS).
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: April 14, 1998
    Assignee: Zeneca Limited
    Inventors: Stephen John Pegg, George Joseph Sependa, Elwyn Peter Davies, Chris Allan Veale
  • Patent number: 5686628
    Abstract: The present invention relates to particular forms of a novel 1-substituted-N-?2-methyl-1-(trifluoroacetyl)propyl!pyrrolidine-2-carboxam ide which are inhibitors of human leukocyte elastase (HLE), also known as human neutrophil elastase (HNE), making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated. The invention also includes pharmaceutical compositions containing such forms, processes for preparing the forms and intermediates useful in the synthesis of the forms.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: November 11, 1997
    Assignee: Zeneca Ltd.
    Inventors: Chris Allan Veale, Peter Robert Bernstein, Elwyn Peter Davies