Patents Assigned to Pfizer
  • Patent number: 5597826
    Abstract: The present invention relates to novel compositions containing the serotonin selective re-uptake inhibitor (SSRI), preferably (1S-cis)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-N-methyl-1-naphthalenam ine, and an agonist or antagonist of the serotonin 1 (5-HT.sub.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: January 28, 1997
    Assignee: Pfizer Inc.
    Inventors: Harry R. Howard, John E. Macor, Bertrand L. Chenard, Jeffrey S. Sprouse, David W. Schulz
  • Patent number: 5596013
    Abstract: The compounds of the formula ##STR1## and the pharmaceutically acceptable salts thereof; wherein X.sub.1, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined herein, are inhibitors of PDE IV and the production of tumor necrosis factor. As such, they are active in the treatment of inflammatory diseases, shock etc.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: January 21, 1997
    Assignee: Pfizer Inc
    Inventor: Allen J. Duplantier
  • Patent number: 5596001
    Abstract: Compounds of the formula ##STR1## and the pharmaceutically acceptable salts thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, m, X and Q are as defined below, and novel intermediates used in the synthesis of such compounds. The compounds of formula I are inhibitors of acyl coenzyme A: cholesterol acyltransferase (ACAT) and are useful as hypolipidemic and natiatherosclerosis agents.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: January 21, 1997
    Assignee: Pfizer Inc.
    Inventor: Ernest S. Hamanaka
  • Patent number: 5594002
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: January 14, 1997
    Assignee: Pfizer Inc
    Inventor: Yuhpyng L. Chen
  • Patent number: 5594007
    Abstract: A method of blocking N-methyl-D-aspartic acid (NMDA) receptor sites in a mammal in need thereof with an effective NMDA blocking (neuroprotective and antiischemic) amount of prodrug esters of 2-piperidino-1-alkanol derivatives and prodrug esters of 2-azabicyclo-1-alkanol derivatives and analogs and pharmaceutically acceptable salts thereof; methods of using these compounds in the treatment of stroke, spinal cord trauma, traumatic brain injury, multiinfarct dementia, CNS degenerative diseases such as Alzheimer's disease, senile dementia of the Alzheimer's type, Huntington's disease, Parkinson's disease, epilepsy, amyotrophic lateral sclerosis, pain, AIDS dementia, psychotic conditions, drug addictions, migraine, hypoglycemia, anxiolytic conditions, urinary incontinence and an ischemic event arising from CNS surgery, open heart surgery or any procedure during which the function of the cardiovascular system is compromised.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: January 14, 1997
    Assignee: Pfizer Inc.
    Inventor: Bertrand L. Chenard
  • Patent number: 5594014
    Abstract: Compounds of the formula (I) where A represents a direct bond, C.sub.1 -C.sub.4 alkyl, or C.sub.1 -C.sub.4 alkenyl; n is 0, 1, or 2; W, X, Y, and Z are each independently oxygen, sulfur, nitrogen or carbon, provided that at least one of W, X, Y, or Z is nitrogen. These compounds are useful psychotherapeutics and are potent serotonin (5-HT.sub.1) agonists and may be used in the treatment of depression, anxiety, eating disorders, obesity, drug abuse, cluster headache, migraine, pain and chronic paroxysmal hemicrania and headache associated with vascular disorders, and other disorders arising from deficient serotonergic neurotransmission. The compounds can also be used as centrally acting antihypertensives and vasodilators.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: January 14, 1997
    Assignee: Pfizer Inc
    Inventors: John E. Macor, Jolanta T. Nowakowski
  • Patent number: 5593997
    Abstract: Certain 4-aminopyrazolo[3,4-d]pyrimidine compounds, and their pharmaceutically-acceptable salts and prodrugs, are inhibitors of tyrosine kinase enzymes and are useful for immunoregulation and for the treatment of cancer, angiogenesis and atherosclerosis.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: January 14, 1997
    Assignee: Pfizer Inc.
    Inventors: Robert L. Dow, Kevin Koch, Gary R. Schulte
  • Patent number: 5591742
    Abstract: Compounds of the formula ##STR1## and pharmaceutically acceptable salts thereof, wherein R.sup.1 is H, C.sub.1 -C.sub.4 alkyl CN or CONR.sup.4 R.sup.5 ; R.sup.2 is C.sub.2 -C.sub.4 alkyl; R.sup.3 is SO.sub.2 NR.sup.6 R.sup.7, NO.sub.2, NH.sub.2, NHCOR.sup.8 NHSO.sub.2 R.sup.8 or N(SO.sub.2 R.sup.8).sub.2 ; R.sup.4 and R.sup.5 are each independently selected from H and C.sub.1 -C.sub.4 alkyl; R.sup.6 and R.sup.7 are each independently selected from H and C.sub.1 -C.sub.4 alkyl optionally substituted with CO.sub.2 R.sup.9, OH, pyridyl 5-isoxazolin-3-onyl, morpholino or 1-imidazolidin-2-onyl; or together with the nitrogen atom to which they are attached form a pyrrolidino, piperidino, morpholino, 1-pyrazolyl or 4-(NR.sup.10)-1-piperazinyl group wherein any of said groups may optionally be substituted with one or two substituents selected from C.sub.1 -C.sub.4 alkyl, CO.sub.2 R.sup.9, NH.sub.2 and OH; R.sup.8 is C.sub.1 -C.sub.4 alkyl or pyridyl; R.sup.9 is H or C.sub.1 -C.sub.4 alkyl; and R.sup.10 is H, C.sub.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: January 7, 1997
    Assignee: Pfizer Inc.
    Inventors: Andrew S. Bell, Nicholas K. Terrett
  • Patent number: 5589366
    Abstract: The present invention relates to certain antibiotic compounds, designated N787-182 compounds herein and derivatives thereof, which are antiparasitic agents, active against insect pests, acari, free-living nematodes and endo- and ectoparasites. This invention also relates to pharmaceutical and other compositions comprising such compounds, methods of using such compounds, the microorganism Streptomyces hygroscopicus ATCC 53718 and mutants or genetically transformed or recombinant form thereof, and processes for producing such compounds.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: December 31, 1996
    Assignee: Pfizer Inc.
    Inventors: Mark A. Haxell, David A. Perry, Hiroshi Maeda, Junsuke Tone
  • Patent number: 5589482
    Abstract: Benzothiophenes and related compounds of the formula ##STR1## are estrogen agonists which are useful for treating prostatic and diseases, obesity and bone loss in male animals.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: December 31, 1996
    Assignee: Pfizer Inc.
    Inventor: David D. Thompson
  • Patent number: 5583137
    Abstract: 2,6-Diaminopurines, 3,5-diamino-6,7,8,9-tetrahydrobenzo[b]thiophene[2,3-d]pyrimidines and 2,4-diaminothieno[3,2-d]pyrimidines useful as inhibitors of P-glycoproteins and potentiators of chemotherapeutic agents.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: December 10, 1996
    Assignee: Pfizer Inc.
    Inventors: Jotham W. Coe, Anton F. J. Fliri, Takushi Kaneko, Eric R. Larson
  • Patent number: 5583015
    Abstract: Streptomyces avermitilis lacking branched-chain amino acid transaminase activity and/or branched-chain 2-oxo acid dehydrogenase activity, methods for preparation thereof, and use thereof to produce natural and non-natural avermectins useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: December 10, 1996
    Assignee: Pfizer Inc.
    Inventors: Edmund W. Hafner, Kelvin S. Holdom, S. Edward Lee
  • Patent number: 5583029
    Abstract: Mutants of Streptomyces avermitilis lacking ability to produce glycosylated avermectins and lacking branched-chain 2-oxo acid dehydrogenase activity, method for preparation thereof, and use thereof to produce natural and non-natural avermectin aglycones useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: December 10, 1996
    Assignee: Pfizer Inc.
    Inventors: Lapyuen H. Lam, Hamish A. I. McArthur, Richard G. Wax
  • Patent number: 5578612
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, X and n are as defined in the claims and the pharmaceutically acceptable salts thereof are new. These compounds are useful psychotherapeutics and are potent serotonin (5-HT.sub.1) agonists and may be used in the treatment of depression, anxiety, eating disorders, obesity, drug abuse, cluster headache, migraine, pain, chronic paroxysmal hemicrania and headache associated with vascular disorders, and other disorders arising from deficient serotonergic neurotransmission. The compounds can also be used as centrally acting hypertensives and vasodilators. A process for forming indoles by transition metal catalyzed cyclization of dihalogenated intermediate is also disclosed.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 26, 1996
    Assignee: Pfizer Inc.
    Inventors: John E. Macor, Martin J. Wythes
  • Patent number: 5578592
    Abstract: Compounds of formula (I) or salts thereof: wherein R.sup.1 is hydrogen, methoxy or formamido; R.sup.2 is an acyl group; CO.sub.2 R.sup.3 is a carboxy group or a carboxylate anion, or R.sup.3 is a readily removable carboxy protecting group or a pharmaceutically acceptable salt-forming group or in vivo hydrolysable ester group; R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently represent hydrogen or a bond or a substituent group or may form a cyclic system. These compounds have antibacterial activity.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: November 26, 1996
    Assignee: Pfizer Inc.
    Inventors: George Burton, Richard L. Elliott
  • Patent number: 5578591
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 is hydrogen, methoxy or formamido;R.sup.2 is an acyl group, in particular that of an antibacterially active cephalosporin;CO.sub.2 R.sup.3 is a carboxy group or a carboxylate anion, or R.sup.3 is a readily removable carboxy promoting group or a pharmaceutically acceptable salt-forming group or in vivo hydrolysable ester group;R.sup.4 represents hydrogen or up to four substituents, which my be present on any of the carbon atoms in the ring system shown, selected from alkyl, alkenyl, alkynyl, alkoxy, hydroxy, halogen, amino, alkylamino, acylamino, dialkylamino, CO.sub.2 R, CONR.sub.2, SO.sub.2 NR.sub.2 where R is hydrogen or alkyl, aryl and heterocyclyl, which may be the same or different and wherein any R.sup.4 aryl substituent is optionally substituted by one or more substituents selected from the list from which R.sup.4 is selectedY is O, S, SO or SO.sub.2 ; n is 0 or 1; and m is 1 or 2;for use in the treatment of bacterial infections in humans and animals.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: November 26, 1996
    Assignee: Pfizer, Inc.
    Inventors: George Burton, Brian C. Gasson, Stephen C. M. Fell
  • Patent number: 5576200
    Abstract: Mutants of Streptomyces avermitilis lacking ability to produce glycosylated avermectins and lacking branched-chain 2-oxo acid dehydrogenase activity, method for preparation thereof, and use thereof to produce natural and non-natural avermectin aglycones useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: November 19, 1996
    Assignee: Pfizer Inc.
    Inventors: Lapyuen Lam, Hamish A. I. McArthur, Richard G. Wax
  • Patent number: 5576442
    Abstract: Two novel optically pure intermediates, (R)-4-(2-bromo-1-hydroxyethyl)-2- trifluoro(-)methylthiazole and (S)-4-oxiranyl-2-trifluoromethylthiazole, which have utility in the synthesis of a potent class of antidiabetic agents. The invention also embraces an enantioselective reduction process for their preparation.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: November 19, 1996
    Assignee: Pfizer Inc.
    Inventor: George J. Quallich
  • Patent number: 5576199
    Abstract: Streptomyces avermitilis lacking branched-chain 2-oxo acid dehydrogenase activity and avermectin B O-methyltransferase activity, method for preparation thereof, and use thereof to produce natural and non-natural B avermectins useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: November 19, 1996
    Assignee: Pfizer Inc.
    Inventors: Edmund W. Hafner, Kelvin S. Holdom, S. Edward Lee
  • Patent number: 5576317
    Abstract: The present invention relates to a method of treating or preventing emesis in a mammal, including a human, by administering to the mammal a 5HT.sub.3 receptor antagonist and an NK-1 receptor antagonist (e.g., a substance P receptor antagonist). It also relates to pharmaceutical compositions containing a pharmaceutically acceptable carrier, a 5HT.sub.3 receptor antagonist and an NK-1 receptor antagonist.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: November 19, 1996
    Assignee: Pfizer Inc.
    Inventor: Susan F. Gonsalves