Patents Assigned to Du Pont Merck Pharmaceutical
  • Patent number: 5336482
    Abstract: Disclosed are cationic complexes of Tc-99m and ligands having the structure: ##STR1## wherein: R.sup.1 is hydrogen or is selected from the group consisting of C.sub.1 to C.sub.20 alkyl; C.sub.3 to C.sub.12 cycloalkyl; C.sub.7 to C.sub.24 aralkyl; C.sub.2 to C.sub.16 alkyl ethers, thioethers, ketones or esters; C.sub.7 to C.sub.27 aralkyl ethers;R.sup.2 is hydrogen or is a C.sub.1 to C.sub.4 lower alkyl radical selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl and tert-butyl.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: August 9, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: David S. Edwards, Christopher E. R. Orvig, Michael J. Poirier
  • Patent number: 5326770
    Abstract: This invention relates to monoamine oxidase-B (MAO-B) inhibitory 5-substituted 2,4-thiazolidinediones, such as Formula I, to pharmaceutical compositions thereof, process of preparation, and methods of use in mammals to treat cognitive disorders, neurological dysfunction, and/or mood disturbances such as, but not limited to degenerative nervous system diseases.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: July 5, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventor: Wendell W. Wilkerson
  • Patent number: 5321023
    Abstract: This invention provides pyrido[4',3':2:3]indolo-[1,7-ab][1,5]benzodiazepines, pharmaceutical compositions containing these compounds, and methods of using these compounds to treat physiological or drug induced psychosis and/or dyskinesia.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: June 14, 1994
    Assignee: The Du Pont Merck Pharmaceutical Co.
    Inventor: Parthasarathi Rajagopalan
  • Patent number: 5318984
    Abstract: Disclosed are compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are selected independently from H, C.sub.1 -C.sub.8 unbranched alkyl, C.sub.3 -C.sub.8 branched alkyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.4 -C.sub.10 cycloalkylalkyl, C.sub.7 -C.sub.14 araalkyl, 2-, 3- or 4-pyridinyl, 2-thienyl, 2-furanyl, phenyl optionally substituted with 1 to 3 groups selected from F, Cl, Br, OH, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.8 branched alkyl, CH.sub.3 S(O).sub.r, NO.sub.2, CF.sub.3, or NR.sup.7 R.sup.8 ; or ##STR2## where L is O, O(CH.sub.2).sub.m+1 O, or (CH.sub.2).sub.m where m is 0-4; R.sup.3 is H, C.sub.1 -C.sub.6 alkyl, allyl, benzyl, or phenyl optionally substituted with F, Cl, CH.sub.3, CH.sub.3 O, or CF.sub.3 ;R.sup.4 is straight chain C.sub.1 -C.sub.8 alkyl optionally substituted with F; C.sub.3 -C.sub.8 branched alkyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.4 -C.sub.10 cycloalkylalkyl, C.sub.7 -C.sub.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: June 7, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Jeffrey T. Billheimer, Peter J. Gillies, C. Anne Higley, Thomas P. Maduskuie, Jr., Ruth R. Wexler
  • Patent number: 5314887
    Abstract: There are provided novel 1,4-dihydropyridine compounds possessing both calcium agonist and alpha.sub.1 -antagonist activity useful for treating congestive heart failure, pharmaceutical compositions containing them and methods of using these compounds to treat congestive heart failure in a mammal.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: May 24, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Paul E. Aldrich, Richard A. Earl, Philip Ma
  • Patent number: 5310748
    Abstract: Disclosed are imidazoles as inhibitors of acylCoA:cholesterol acyltransferase (ACAT), processes for their preparation, pharmaceutical compositions, and their use as antihypercholesterolemics and/or antiatherosclerotics.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: May 10, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Richard G. Wilde, C. Anne Higley, Jeffrey T. Billheimer, Ruth R. Wexler
  • Patent number: 5308851
    Abstract: Bispyridyl-containing heterocycles, or pharmaceutically acceptable salts thereof, are useful in treating neurological disorders in mammals. The compounds have efficacy over a broad dosage ranges as measured in both neurotransmitter release assay and by hypoxia induced cognition deficit.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: May 3, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Christopher A. Teleha, Matthew E. Voss
  • Patent number: 5306821
    Abstract: This invention relates to a novel process for the preparation of tertiary carbinamines by double addition of organolanthanide reagents, especially organocerium reagents, to nitriles. It further relates to the preparation of such amines by the addition of organolanthanide reagents to imines.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: April 26, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventor: Engelbert Ciganek
  • Patent number: 5300642
    Abstract: Cognitive defeciencies or neurological dysfunction in mammals are treated with .alpha.,.alpha.-disubstituted aromatic or heteroaromatic compounds. The compounds have the formula: ##STR1## or a salt thereof wherein X and Y are taken together to form a saturated or unsaturated carbocyclic or heterocyclic first ring and the shown carbon in said ring is .alpha. to at least one additional aromatic ring or heteroaromatic ring fused to the first ring;one of Het.sup.1 or Het.sup.2 is 2, 3, or 4-pyridyl or 2, 4, or 5-pyrimidinyl and the other is selected from(a) 2, 3, or 4-pyridyl,(b) 2, 4, or 5-pyrimidinyl,(c) 2-pyrazinyl,(d) 3, or 4-pyridazinyl,(e) 3, or 4-pyrazolyl,(f) 2, or 3-tetrahydrofuranyl, and(g) 3-thienyl.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: April 5, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Richard A. Earl, Melvyn J. Myers, Victor J. Nickolson
  • Patent number: 5296479
    Abstract: There are provided cycloalkyl piperidine compounds which are useful in the treatment of physiological or drug-induced psychosis or dyskinesia in a mammal. These novel compounds are selective sigma receptor antagonists and have a low potential for movement disorder side effects associated with typical antipsychotic agents.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: March 22, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Gary A. Cain, Paul J. Gilligan, Sang W. Tam
  • Patent number: 5290817
    Abstract: The invention relates to benzylindane phospholipase A.sub.2 inhibitors, pharmaceutical compositions containing them, and methods of treating phospholipase A.sub.2 -mediated conditions in mammals by administration of a therapeutically effective amount of such a benzylindane phospholipase A.sub.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: March 1, 1994
    Assignee: The Du Pont Merck Pharmaceutical Co.
    Inventor: Joseph J. Petraitis
  • Patent number: 5290801
    Abstract: This invention relates to imidazoles, namely, fused-ring heterocycles as inhibitors of acyl-CoA: cholesterol acyltransferase (ACAT), pharmaceutical compositions containing them, processes for their preparation, and their use as antihypercholesterolemic and/or antiatherosclerotic agents for the treatment of atherosclerosis.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: March 1, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: C. Anne Higley, Thomas P. Muduskuie, Jr., Ruth R. Wexler, Richard G. Wilde
  • Patent number: 5279811
    Abstract: Radiopharmaceuticals consisting essentially of a lipophilic, charge neutral radionuclide complex of a diaminedithiol ligand having 1-4 ester groups of the formula --A--COOR where A is a straight or branched chain alkylene of 0-10 carbon atoms and R is an alkyl group of 1-10 carbon atoms are useful in radioimaging brain perfusion in primates. Ester-substituted diaminedithiols in sterile, pharmaceutically acceptable form, and kits of the diaminedithiols and sterile, non-pyrogenic reducing agents for reducing preselected radionuclides are also provided. Technetium-99m is a preferred radionuclide.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: January 18, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Paul L. Bergstein, Edward H. Cheesman, Alan D. Watson
  • Patent number: 5278162
    Abstract: Compounds of Formula I have been shown to enhance the release of the neurotransmitters acetylcholine, dopamine and serotonin; and thus may be useful in the treatment of diseases of man where subnormal levels of this neurochemical are found such as in Alzheimer's disease and other conditions involving learning and cognition; and Parkinson's disease.The compounds of this invention can be described as shown in Formula I ##STR1## where A is a heteroaromatic system.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: January 11, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventor: Wendell W. Wilkerson
  • Patent number: 5278045
    Abstract: This invention is directed to a composition comprising a substantially purified protein which enhances endogenous stimulus-induced neurotransmitter release, said neurotransmitter being selected from the group consisting of acetylcholine, dopamine or serotonin, said protein having a binding affinity constant of at least 2.9.+-.0.8 nM for tritiated 3,3-bis(4-pyridinylmethyl)-1-phenylindolin-2-one as determined by a Scatchard analysis, and said protein being trypsin sensitive and phospholipase C insensitive.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: January 11, 1994
    Assignee: Du Pont Merck Pharmaceutical Company
    Inventor: Sang W. Tam
  • Patent number: 5275821
    Abstract: There are provided, novel no or low wax formulations for amantadine hydrochloride and methods for preparing such formulations.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: January 4, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventor: George Torosian
  • Patent number: 5272269
    Abstract: Polycyclic cognition enhancers having the general formula (1a), (1b) or (1c) are provided: ##STR1## wherein: R.sub.1 is a heterocyclic aromatic moiety such as a 4-pyridyl, 2-pyridyl, 4-pyrimidyl, or pyrazinyl group;R.sub.2 and R.sub.3 are independently H, F, Cl, Br, NO.sub.2, CONH.sub.2, CON(R.sub.4)(R.sub.4 '), S(O).sub.m R.sub.4, CF.sub.3, or N(R.sub.4)(R.sub.4 ');R.sub.4 and R.sub.4 ' are independently H, alkyl having from 1 to 4 carbon atoms, CH.sub.2 Phe--W, or Phe--W;Phe is a phenyl group;R.sub.5 is --(CH.sub.2).sub.n --Y or --OCOR.sub.4 ;Y is H, OH, NH.sub.2, NHR.sub.4, N(R.sub.4)(R.sub.4 '), NHCOR.sub.4, NHCO.sub.2 R.sub.4, NHS(O).sub.2 R.sub.4, F, Cl, Br, OR.sub.4, S(O).sub.m R.sub.4, CO.sub.2 H, CO.sub.2 R.sub.4, CN, CON(R.sub.4)(R.sub.4 '), CONHR.sub.4, CONH.sub.2, COR.sub.4, Phe, Phe--W, --C.tbd.CCO.sub.2 R.sub.4, --CH.dbd.CHR.sub.4, --C.tbd.CR.sub.4, or a heterocyclic aromatic moiety such as a 4-pyridyl, 2-pyridyl, 4-pyrimidyl, or pyrazinyl group;W is F, Cl, Br, R.sub.4, OR.sub.4, NO.sub.2, NH.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: December 21, 1993
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: James H. Jensen, Timothy D. Costello, Leon De Brabander, Jr., Matthew E. Voss
  • Patent number: 5266572
    Abstract: There are provided cycloalkyl piperidine compounds which are useful in the treatment of physiological or drug-induced psychosis or dyskinesia in a mammal. These novel compounds are selective sigma receptor antagonists and have a low potential for movement disorder side effects associated with typical antipsychotic agents.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: November 30, 1993
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Gary A. Cain, Paul J. Gilligan, Sang W. Tam
  • Patent number: 5254536
    Abstract: Pharmaceutical compositions for controlling, by topical administration, localized bleeding in a patient, the composition comprising active PAI-1 protein in an amount effective to control the localized bleeding when topically administered, and a vehicle suitable for the topical administration, as well as methods and kits employing the same, are disclosed.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: October 19, 1993
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Adrienne L. Racanelli, Thomas M. Reilly
  • Patent number: 5254577
    Abstract: Novel aminomethyloxooxazolidinyl arylbenzene derivatives, wherein the aryl includes the phenyl, substituted phenyl, pyridyl, and substituted pyridyl groups, such as (l)-N-{3-[4-(4'-pyridyl)phenyl]-2-oxooxazolidin-5-ylmethyl}acetamide, possess useful antibacterial activity.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: October 19, 1993
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Randall K. Carlson, Chung-Ho Park, Walter A. Gregory