Patents by Inventor Andrew Douglas Baxter

Andrew Douglas Baxter 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).

  • Publication number: 20090270437
    Abstract: This invention relates to opioid compounds such as burenorphine or N-alkylated derivatives thereof for wound healing.
    Type: Application
    Filed: November 13, 2007
    Publication date: October 29, 2009
    Inventors: Andrew Douglas Baxter, Alan Rothaul
  • Publication number: 20090270384
    Abstract: The present invention provides for compounds of formula (I), (Ia) and (Ib) Wherein: A is selected from C—X and N, B is selected from C—Y and N, R1 is selected from H and (C1-C6)alkyl, R2 is selected from H and (C1-C6)alkyl, X is selected from H, HO, C(O)NH2, NH2 Y is selected from H, HO, NH2, Br, Cl and F Z is selected from H, HO, F, CONH2 and CN; And pharmaceutically acceptable salts, solvates and prodrugs thereof; With the provisos that: for a compound of formula (I), (Ia) or (Ib), when A is C—X, B is C—Y, R1 is H or (C1-C6)alkyl and R2 is H or (C1-C6)alkyl at least one of X, Y and Z must be OH; for a compound of formula (I), when A is C—X and B is C—Y, Y is H, Z is H, R1 is H and R2 is H, then X cannot be OH; these compounds are useful as a medicament.
    Type: Application
    Filed: July 2, 2009
    Publication date: October 29, 2009
    Inventors: Charlotte Moria Norfor Allerton, Andrew Douglas Baxter, Andrew Simon Cook, David Hepworth, Stephen Kwok-Fung Wong
  • Patent number: 7576081
    Abstract: The present invention provides for compounds of formula (I), (Ia) and (Ib) Wherein: A is selected from C—X and N, B is selected from C—Y and N, R1 is selected from H and (C1-C6)alkyl, R2 is selected from H and (C1-C6)alkyl, X is selected from H, HO, C(O)NH2, NH2 Y is selected from H, HO, NH2, Br, Cl and F Z is selected from H, HO F, CONH2 and CN; And pharmaceutically acceptable salts, solvates and prodrugs thereof; With the provisos that: for a compound of formula (I), (Ia) or (Ib), when A is C—X, B is C—Y, R1 is H or (C1-C6)alkyl and R2 is H or (C1-C6)alkyl at least one of X, Y and Z must be OH; for a compound of formula (I), when A is C—X and B is C—Y, Y is H, Z is H, R1 is H and R2 is H, then X cannot be OH; these compounds are useful as a medicament.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: August 18, 2009
    Assignee: Pfizer Inc.
    Inventors: Charlotte Moira Norfor Allerton, Andrew Douglas Baxter, Andrew Simon Cook, David Hepworth, Stephen Kwok-Fung Wong
  • Publication number: 20090093509
    Abstract: The present invention is based on the discovery that a nalmefene salt or a peripherally acting analogue of nalmefene is capable of providing long-acting activity against pruritus, when applied topically. In addition, treatment with a nalmefene salt or peripherally acting analogue of nalmefene, can provide disease-modifying effects against the chronic symptoms of atopic dermatitis, including reductions of inflammatory cell infiltrate into the skin, epidermal hyperplasia and trans-epidermal water loss. Compositions of the invention have an inhibitory effect on the itch-scratch-cycle, leading to both relief of pruritus and disease-modifying activity.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 9, 2009
    Inventors: Tahir Nazir, Andrew Douglas Baxter, Alan Rothaul
  • Publication number: 20090062372
    Abstract: A glycopyrronium salt such as glycopyrronium iodide has a lower glass transition temperature than glycopyrronium bromide. It is therefore more suitable for formulation.
    Type: Application
    Filed: March 20, 2006
    Publication date: March 5, 2009
    Inventor: Andrew Douglas Baxter
  • Publication number: 20090012178
    Abstract: A compound selected from (1S)-8-cyano-5-methyl-1-(3-methoxy)phenyl-1,3,4,6-tetrahydro-5H-benz[f]-2,5-oxazocine; (1R)-8-cyano-5-methyl-1-(3-methoxy)phenyl-1,3,4,6-tetrahydro-5H-benz[f]-2,5-oxazocine; (1S)-8-cyclopropyl-5-methyl-1-(3-methoxy)phenyl-1,3,4,6-tetrahydro-5H-benz[f]-2,5-oxazocine; (1S)-8-cyclopropyl-5-methyl-1-(3-methoxy)phenyl-1,3,4,6-tetrahydro-5H-benz[f]-2,5-oxazocine; (1S)-5-methyl-1-(3-methoxy)phenyl-1,3,4,6-tetrahydro-5H-benz[f]-2,5-oxazocine-8-carboxamide; (1R)-5-methyl-1-(3-methoxy)phenyl-1,3,4,6-tetrahydro-5H-benz[f]-2,5-oxazocine-8-carboxamide; and the salts thereof. These compounds have therapeutic utility.
    Type: Application
    Filed: March 10, 2006
    Publication date: January 8, 2009
    Applicant: BEMIS MANFACTURING
    Inventor: Andrew Douglas Baxter
  • Publication number: 20080306162
    Abstract: A compound that is useful for the treatment or prevention of a condition such as pain, that is associated with T-cell proliferation or that is mediated by pro- and/or anti-inflammatory cytokines, is of formula (I) wherein R1 is aryl or heteroaryl optionally substituted with R5; R2 is H, alkyl or CH2OH and can be part of a ring with R4; R3 is H, alkyl or CH2OH and can be part of a ring with R4; R4 is H or alkyl or CH2 (when forming part of a ring with R2 or R3); and R5 is alkyl, CF3, OH, Oalkyl, OCOalkyl, CONH2, CN, F, Cl, Br, I, NH2, NHCHO, NHCONH2, NHSO2alkyl, CONH2, SOMe, CH2OH or OCONalkyl2; or a salt thereof.
    Type: Application
    Filed: June 30, 2006
    Publication date: December 11, 2008
    Inventors: Andrew Douglas Baxter, Michael Harvey Lyne, Robin Mark Bannister, Elena Lasterra
  • Publication number: 20080234258
    Abstract: A compound of formula (1) wherein X is H or —OCR1 and Y is H or —OCR2, provided that X and Y are not both H; and R is CH2OR9, CONR11R12, CN, tetrazole or COOR17; or a salt thereof, has therapeutic utility.
    Type: Application
    Filed: August 10, 2006
    Publication date: September 25, 2008
    Inventors: Andrew Douglas Baxter, Andrea Walmsley
  • Publication number: 20080227988
    Abstract: A method for the production of crystalline glycopyrronium bromide, comprises the reaction of glycopyrronium base with methyl bromide in a solvent, in which the solvent is selected such that the diastereoisomeric ratio of the product favours the R, S and S, R diastereoisomers over the R, R, and S, S diastereoisomers, and separating the desired diastereoisomers by one or more controlled crystallisation steps. This method gives a product having a particle size of narrow distribution.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 18, 2008
    Inventors: Andrew Douglas Baxter, Kenneth Walter Sinden, Stefan Kleinebekel
  • Patent number: 7323462
    Abstract: Compounds of formula (I), (Ia) and (Ib) useful as a medicament.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: January 29, 2008
    Assignee: Pfizer Inc.
    Inventors: Charlotte Moira Norfor Allerton, Andrew Douglas Baxter, Andrew Simon Cook, David Hepworth, Stephen Kwok-Fung Wong
  • Patent number: 7084145
    Abstract: The invention provides compounds of formula (I), the pharmaceutically acceptable salts and solvates thereof, wherein A, B, R1, R2, and R7 are as defined herein; pharmaceutical compositions thereof; combinations thereof; and uses thereof as vasopressin V1A antagonists.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: August 1, 2006
    Assignee: Pfizer Inc.
    Inventors: Robert Duncan Armour, Andrew Douglas Baxter, Justin Stephen Bryans, Kevin Neil Dack, Patrick Stephen Johnson, Russell Andrew Lewthwaite, Julie Newman, David James Rawson, Thomas Ryckmans
  • Publication number: 20050222205
    Abstract: Ifenprodil is useful for the treatment of pain, e.g. on administration intranasally or by another route that avoids first-pass metabolism.
    Type: Application
    Filed: May 6, 2003
    Publication date: October 6, 2005
    Inventors: John Brew, Robin Bannister, Andrew Douglas Baxter, Alan Rothaul, Michael Lyne
  • Patent number: 6933306
    Abstract: Pharmacologically active compounds are provided as well as pharmaceutical compositions and methods for treating cancer; inflammation; an autoimmune, infectious or ocular disease; or age-related macular degeneration in a mammal.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: August 23, 2005
    Assignee: Darwin Discovery Ltd.
    Inventors: Duncan Robert Hannah, Hazel Joan Dyke, Robert John Watson, John Fraser Keily, Andrew Douglas Baxter
  • Publication number: 20040266764
    Abstract: The invention encompasses novel compounds which are inhibitors of matrix metalloproteinase, ADAM or ADAM-TS enzymes, and which are useful for the treatment of diseases mediated by those enzymes, including degenerative diseases and certain cancers.
    Type: Application
    Filed: July 29, 2004
    Publication date: December 30, 2004
    Inventors: Duncan Robert Hannah, Hazel Joan Dyke, Andrew Sharpe, Andrew Douglas Baxter
  • Publication number: 20040259874
    Abstract: The present invention provides for compounds of formula (I), (Ia) and (Ib) 1
    Type: Application
    Filed: December 2, 2003
    Publication date: December 23, 2004
    Applicant: Pfizer Inc.
    Inventors: Charlotte Moria Norfor Allerton, Andrew Douglas Baxter, Andrew Simon Cook, David Hepworth, Stephen Kwok-Fung Wong
  • Patent number: 6818622
    Abstract: The subject invention pertains to matrix metalloproteinase (MMP) inhibitors that exhibit an IC50 of below 10−4M against MMP and have substantially no activity against non-MMP metalloproteinase-related events. The MMP inhibitors of the invention have reduced side-effects, especially with respect to joint pain.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: November 16, 2004
    Assignee: Darwin Discovery Ltd.
    Inventors: John Bird, John Gary Montana, Ruth Elizabeth Wills, Andrew Douglas Baxter, David Alan Owen
  • Patent number: 6809100
    Abstract: The invention encompasses novel compounds which are inhibitors of matrix metalloproteinase, ADAM or ADAM-TS enzymes, and which are useful for the treatment of diseases mediated by those enzymes, including degenerative diseases and certain cancers.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: October 26, 2004
    Assignee: Darwin Discovery Ltd.
    Inventors: Duncan Robert Hannah, Hazel Joan Dyke, Andrew Sharpe, Andrew Douglas Baxter
  • Publication number: 20040176362
    Abstract: The invention relates to hydroxamic and carboxylic acid derivatives.
    Type: Application
    Filed: March 17, 2004
    Publication date: September 9, 2004
    Inventors: Duncan Batty, Verity Margaret Sabin, Robert John Watson, Hazel Joan Dyke, Andrew Sharpe, Richard John Davenport, David Alan Owen, Andrew Douglas Baxter
  • Patent number: 6787536
    Abstract: The invention encompasses novel compounds which are inhibitors of matrix metalloproteinase, ADAM or ADAM-TS enzymes, and which are useful for the treatment of diseases mediated by those enzymes, including degenerative diseases and certain cancers.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: September 7, 2004
    Assignee: Darwin Discovery Limited
    Inventors: Duncan Robert Hannah, Hazel Joan Dyke, Andrew Sharpe, Andrew Douglas Baxter
  • Publication number: 20040162278
    Abstract: The invention provides compounds of formula (I), 1
    Type: Application
    Filed: October 24, 2003
    Publication date: August 19, 2004
    Applicant: Pfizer Inc
    Inventors: Robert Duncan Armour, Andrew Douglas Baxter, Justin Stephen Bryans, Kevin Neil Dack, Patrick Stephen Johnson, Russell Andrew Lewthwaite, Julie Newman, David James Rawson, Thomas Ryckmans