Patents Represented by Attorney, Agent or Law Firm James T. Jones
  • Patent number: 6730786
    Abstract: There is provided a process for the production a compound of general formula I: wherein A, R1, R2, R3 and R4 have meanings given in the description, which process comprises the dehydrogenation of a compound of general formula II,
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: May 4, 2004
    Assignee: Pfizer Inc
    Inventors: Mark Edward Bunnage, Philip Charles Levett, Nicholas Murray Thomson
  • Patent number: 6723719
    Abstract: Compounds of formulae (IA) and (IB) or pharmaceutically or veterinarily acceptable salts thereof, or pharmaceutically or veterinarily acceptable solvates of either entity, wherein R1 is C1 to C3 alkyl substituted with C3 to C6 cycloalkyl, CONR5R6 or a N-linked heterocyclic group; (CH2)nHet or (CH2)nAr; R2 is C1 to C6 alkyl; R3 is C1 to C6 alkyl optionally substituted with C1 to C4 alkoxy; R4 is SO2NR7R8; R5 and R6 are each independently selected from H and C1 to C4 alkyl optionally substituted with C1 to C4 alkoxy, or, together with the nitrogen atom to which they are attached, form a 5- or 6-membered heterocyclic group; R7 and R8, together with the nitrogen atom to which they are attached, form a 4-R10-piperazinyl group; R10 is H or C1 to C4 alkyl optionally substituted with OH, C1 to C4 alkoxy or CONH2; H is an optionally substituted C-linked 5- or 6-membered heterocyclic group; Ar is optionally substituted phenyl; and n is 0 or 1; are potent and selective cGMP PDE5 inhibitors useful in the treatment of, in
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: April 20, 2004
    Assignee: Pfizer Inc
    Inventors: Mark Edward Bunnage, John Paul Mathias, Stephen Derek Albert Street, Anthony Wood
  • Patent number: 6706283
    Abstract: Controlled release dosage forms for low solubility drugs are disclosed wherein an amorphous solid dispersion of the drug is coated with a non-dissolving and non-eroding coating that controls the influx of water to the core so as to cause extrusion of a portion of the core, as well as a method of treating a disease or disorder comprising administering such dosage form to a person.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: March 16, 2004
    Assignee: Pfizer Inc
    Inventors: Leah E. Appel, William J. Curatolo, Scott M. Herbig, James A. S. Nightingale, Avinash G. Thombre
  • Patent number: 6677335
    Abstract: Compounds of the formula (I): wherein R1, R2, R4 and R13 are as defined or a pharmaceutically or veterinarily acceptable salt or polymorph thereof, or a pharmaceutically or veterinarily acceptable solvate or pro-drug thereof: are potent and selective inhibitors of type 5 cyclic guanosine 3′,5′-monophosphate phosphodiesterase (cGMP PDE5) and have utility in the treatment of, inter alia, male erectile dysfunction (MED) and female sexual dysfunction (FSD).
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: January 13, 2004
    Assignee: Pfizer Inc
    Inventors: Mark Edward Bunnage, Keith Michael DeVries, Laurence James Harris, Philip Charles Levett, John Paul Mathias, Joanna Teresa Negri, Stephen Derek Albert Street, Albert Shaw Wood
  • Patent number: 6670366
    Abstract: There is provided compounds of formula IA and of formula IB, wherein R1, R2, R3, R4 and A have meanings given in the description, which are useful in the curative and prophylactic treatment of a medical condition for which inhibition of a cyclic guanosine 3′,5′-monophosphate phosphodiesterase (e.g. cGMP PDE5) is desired.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: December 30, 2003
    Assignee: Pfizer Inc
    Inventors: Mark Edward Bunnage, John Paul Mathias, Stephen Derek Albert Street, Anthony Wood
  • Patent number: 6667398
    Abstract: There is provided a process for the production a compound of general formula I: wherein A, R1, R2, R3 and R4 have meanings given in the description, which process comprises the reaction of a compound of formula II, wherein Rx is a group substitutable by an aminopyrazole, with a compound of general formula III
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: December 23, 2003
    Assignee: Pfizer Inc
    Inventors: Peter James Dunn, Catherine Dunne
  • Patent number: 6656945
    Abstract: 6-heterocyclyl pyrazolo [3,4-d]pyrimidin-4-one compounds which are selective inhibitors of cGMP PDE are useful in the treatment of erectile dysfunction (impotence) in male animals, including man.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: December 2, 2003
    Assignee: Pfizer Inc
    Inventors: Simon Fraser Campbell, Alexander Roderick MacKenzie, Anthony Wood
  • Patent number: 6657065
    Abstract: The present invention relates to methods of making quinoline amides of Formula I below, which are microsomal triglyceride transfer protein inhibitors and can be used as medicines. The present invention also relates to compounds that are used to make quinoline amides of Formula I and methods of making these compounds.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: December 2, 2003
    Assignee: Pfizer Inc
    Inventors: Norma J. Tom, David C. Whritenour
  • Patent number: 6632803
    Abstract: The invention provides pharmaceutical formulation comprising voriconazole, or a pharmaceutically acceptable derivative thereof, and a sulfobutylether &bgr;-cyclodextrin.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: October 14, 2003
    Assignee: Pfizer Inc
    Inventor: Valerie Denise Harding
  • Patent number: 6573383
    Abstract: This invention relates to methods for preparing anhydrous CETP inhibitor, (2R,4S)-4-[(3,5-bis-trifluoromethyl-benzyl)-methoxycarbonyl-amino]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoline-1-carboxylic acid ethyl ester.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: June 3, 2003
    Assignee: Pfizer Inc
    Inventor: Peter R. Rose
  • Patent number: 6548555
    Abstract: A composition comprising a basic drug, a drug which forms a zwitterion, or a salt of either entity, admixed with a polymer selected from hydroxypropylmethylcellulose acetate succinate (HPMCAS), cellulose acetate trimellitate (CAT), cellulose acetate phthalate (CAP), hydroxypropylcellulose acetate phthalate (HPCAP), hydroxypropylmethylcellulose acetate phthalate (HPMCAP), and methylcellulose acetate phthalate (MCAP). The compositions having improved solubility, hence bioavailability, in the small intestine; Processes for testing such compositions, and methods of using such compositions. The compositions comprise the basic drug, zwitterion, or salt and one or more of the aforementioned polymers. The invention further relates to a method for increasing the bioavailability of a basic or a zwitterionic drug comprising co-administering the basic drug, the zwitterionic drug, or the salt, with one or more of the aforementioned polymers.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: April 15, 2003
    Assignee: Pfizer Inc
    Inventors: William J. Curatolo, James A. S. Nightingale, Ravi M. Shanker, Steven C. Sutton
  • Patent number: 6537573
    Abstract: A dosage form containing cetirizine as an immediate release component and pseudoephedrine or a pharmaceutically acceptable salt thereof as a controlled release component. A portion of the pseudoephedrine can also be incorporated as an immediate release component. The dosage form is free of alcohols having a molecular weight lower than 100 and reactive derivatives thereof.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: March 25, 2003
    Assignee: Pfizer Inc
    Inventors: Barbara A. Johnson, Richard W. Korsmeyer, Cynthia A. Oksanen
  • Patent number: 6534511
    Abstract: The use of certain 6-arylpyrazolo[3,4-d]pyrimidin-4-ones, 2 arylquinazolin-4-ones, 2-arylpurin-6-ones and 2-arylpyrido[3,2-d]pyrimidin-4-ones, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition containing either entity, for the manufacture of a medicament for the curative or prophylactic treatment of erectile dysfunction in a male animal, including man; a pharmaceutical composition for said treatment; and a method of said treatment of said animal with said pharmaceutical composition or with said either entity.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: March 18, 2003
    Assignee: Pfizer Inc.
    Inventor: Simon Fraser Campbell
  • Patent number: 6503908
    Abstract: There is provided compounds of formula I, wherein R1, R2, R3 and Het1 have meanings given in the description, which are useful in the curative and prophylactic treatment of medical conditions for which inhibition of a cyclic guanosine 3′,5′-monophosphate phosphodiesterase (e.g. cGMP PDE5) is desired.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: January 7, 2003
    Assignee: Pfizer Inc
    Inventor: Graham Nigel Maw
  • Patent number: 6469012
    Abstract: The use of a compound of formula (I) wherein R1 is H; C1-C3 alkyl; C1-C3 perfluoroalkyl; or C3-C5 cycloalkyl; R2 is H; optionally substituted C1-C6 alkyl; C1-C3 perfluoroalkyl; or C3-C6 cycloalkyl; R3 is optionally substituted C1-C6 alkyl; C1-C6 perfluoroalkyl; C3-C5 cycloalkyl; C3-C6 alkenyl; or C3-C6 alkynyl; R4 is optionally substituted C1-C4 alkyl, C2-C4 alkenyl, C2-C4 alkanoyl, (hydroxy)C2-C4 alkyl or (C2-C3 alkoxy)C1-C2 alkyl; CONR5R6; CO2R7; halo; NR5R6; NHSO2NR5R6; NHSO2R8; SO2NR9R10; or phenyl, pyridyl, pyrimidinyl, imidazolyl, oxazolyl, thiazolyl, thienyl or triazolyl any of which is optionally substituted with methyl; R5 and R6 are each independently H or C1-C4 alkyl, or together with the nitrogen atom to which they are attached form an optionally substituted pyrrolidinyl, piperidino, morpholino, 4-N(R11)-piperazinyl or imidazolyl group; R7 is H or C1-C4 alkyl; R8 is optionally substituted C1-C3 alkyl; R9 and R10 together with the nitrogen atom to which they are attached form an o
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: October 22, 2002
    Assignee: Pfizer Inc
    Inventors: Peter Ellis, Nicholas Kenneth Terrett
  • Patent number: 6458951
    Abstract: Compounds of the formulae (IA) and (IB): wherein R1 is C1 to C3 alkyl optionally substituted with phenyl, Het or a N-linked heterocyclic group selected from piperidinyl and morpholinyl; wherein said phenyl group is optionally substituted by one or more substitutents selected from C1 to C4 alkoxy; halo; CN; CF3; OCF3 or C1 to C4 alkyl wherein said C1 to C4 alkyl group is optionally substituted by C1 to C4 haloalkyl or haloalkoxy either of which is substituted by one or more halo atoms; R2 is C1 to C6 alkyl and R13 is OR3 or NR5R6, or pharmaceutically or veterinarily acceptable salts thereof, or pharmaceutically or veterinarily acceptable solvates of either entity are potent and selective inhibitors of type 5 cyclic guanosine 3′,5′-monophosphate phosphodiesterase (cGMP PDE5) and have utility in the treatment of, inter alia, male erectile dysfunction (MED) and female sexual dysfunction (FSD).
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: October 1, 2002
    Assignee: Pfizer Inc
    Inventors: Mark Edward Bunnage, John Paul Mathias, Stephen Derek Albert Street, Anthony Wood
  • Patent number: 6420557
    Abstract: A polymorph of 1-{6-ethoxy-5-[3-ethyl-6,7-dihydro-2-(2-methoxyethyl)-7-oxo-2H-pyrazolo[4,3-d]pyrimidin-5-yl]-3-pyridylsulfonyl}-4-ethylpiperazine.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: July 16, 2002
    Assignee: Pfizer Inc.
    Inventors: Laurence James Harris, Richard Anthony Storey, Albert Shaw Wood
  • Patent number: 6407114
    Abstract: There is provided compounds of formula IA and of formula IB, wherein R1, R2, R3, R4 and A have meanings given in the description, which are useful in the curative and prophylactic treatment of a medical condition for which inhibition of a cyclic guanosine 3′,5′-monophosphate phosphodiesterase (e.g. cGMP PDE5) is desired.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: June 18, 2002
    Assignee: Pfizer Inc.
    Inventors: Mark Edward Bunnage, John Paul Mathias, Stephen Derek Albert Street, Anthony Wood
  • Patent number: 6399777
    Abstract: The esylate, mesylate, and tartrate salts of ziprasidone exhibit excellent solubilities in cyclodextrins.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: June 4, 2002
    Assignee: Pfizer Inc.
    Inventors: Yesook Kim, Kevin C. Johnson, Ravi M. Shanker
  • Patent number: 6333330
    Abstract: There is provided compounds of formula IA and of formula IB, wherein R1, R2, R3, R4 and A have meanings given in the description, which are useful in the curative and prophylactic treatment of medical conditions for which inhibition of a cyclic guanosine 3′,5′-monophosphate phosphodiesterase (e.g. cGMP PDE5) is desired.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: December 25, 2001
    Assignee: Pfizer Inc.
    Inventors: Mark Edward Bunnage, John Paul Mathias, Graham Nigel Maw, David James Rawson, Stephen Derek Albert Street, Anthony Wood