Patents Represented by Attorney, Agent or Law Firm Blair Q. Ferguson
  • Patent number: 5562905
    Abstract: A chemically synthesized 15 amino acid peptide designated peptide 1-69, which has the sequence of amino acids numbers 308 to 322 (RIQRGPGRAFVTIGK) of the human immunodeficiency virus-1 (HIV-1) IIIB env-coded protein, was used to immunize animals. Peptide 1-69 elicited in immunized animals antibodies that block HIV proliferation and block HIV-induced cell fusion in cell culture.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: October 8, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William R. Kenealy, Stephen R. Petteway, Paul J. Durda
  • Patent number: 5559252
    Abstract: The present invention provides a process for the preparation of compounds of formula (V) below, and analogs thereof, which are useful as intermediates for the synthesis of HIV protease inhibitors, including cyclic ureas.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: September 24, 1996
    Assignee: The DuPont Merck Pharmaceutical Company
    Inventor: Robert F. Kaltenbach III
  • Patent number: 5532356
    Abstract: The present invention relates to methods for the preparation of disubstituted cyclic ureas of the formula (IV): ##STR1## from linear diaminodiols. These cyclic urea compounds are useful as HIV protease inhibitor compounds for the treatment of HIV infection.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 2, 1996
    Assignee: The DuPont Merck Pharmaceutical Company
    Inventors: Thomas E. Smyser, Pasquale N. Confalone
  • Patent number: 5523408
    Abstract: This invention relates to 2-carbocyclic and 2-heterocyclic quinoline-4-carbocyclic acid compounds, and salts thereof, to pharmaceutical compositions comprising such compounds, and to methods of using such compounds for the treatment and/or prevention of organ transplantation rejection, graft versus host disease, and chronic inflammatory diseases, including but not limited to psoriasis and rheumatoid arthritis, in a mammal.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: June 4, 1996
    Assignee: The Dupont Merck Pharmaceutical Company
    Inventors: Douglas G. Batt, Joseph J. Petraitis, Susan R. Sherk
  • Patent number: 5523302
    Abstract: This invention relates to novel compounds containing basic and acidic termini, pharmaceutical compositions containing such compounds, processes for preparing such compounds, and to methods of using these compounds, alone or in combination with other therapeutic agents, for the inhibition of platelet aggregation, as thrombolytics, and/or for the treatment of thromboembolic disorders.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: June 4, 1996
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Gary A. Cain, Charles J. Eyermann
  • Patent number: 5506355
    Abstract: The present invention discloses processes for the preparation of substituted cyclic sulfamides which are useful as intermediates for the synthesis of cyclic sulfamide human immunodeficiency virus (HIV) protease inhibitors. Such substituted cyclic sulfamide intermediates contain a cyclic acetal-protected diol.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: April 9, 1996
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Prabhakar K. Jadhav, Wayne F. Daneker, Francis J. Woerner
  • Patent number: 5491152
    Abstract: The present invention provides compounds of Formula I, ##STR1## or a pharmaceutically acceptable salt forms thereof, which are inhibitors of acyl-Coenzyme A: cholesterol O-acyltransferase (ACAT), pharmaceutical compositions containing such compounds, processes for the preparation of such compounds, and the use of such compounds as antihypercholesterolemic and/or antiatherosclerotic agents.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: February 13, 1996
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Richard G. Wilde, Soo S. Ko, Jeffrey T. Billheimer
  • Patent number: 5470967
    Abstract: Oligonucleotides possessing at least one sulfamate or sulfamide internucleotides linkages. These compounds can be used as specific hybridization probes to detect complementary nucleic acid sequences.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: November 28, 1995
    Assignee: The Dupont Merck Pharmaceutical Company
    Inventors: Edward M. Huie, George L. Trainor
  • Patent number: 5461176
    Abstract: This invention relates to bis-naphthalimides, including 2,2'-[1,2-ethanediylbis[imino(1-methyl-2,1-ethanediyl)]]-bis[5-nitro-1H-be nz[de]isoquinoline-1,3(2H)-dione] and 2,2'-[1,2-ethanediylbis[imino(2-methyl-2,1-ethanediyl)]]-bis[5-nitro-1H-be nz[de]isoquinoline-1,3(2H)-dione], processes for their preparation, pharmaceutical compositions containing them, and methods of using them to treat cancer in mammals.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: October 24, 1995
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Jung-Hui Sun, Jose R. Matos, Chung-Ho Park, Robert G. Clifton, Jr.
  • Patent number: 5446056
    Abstract: This invention relates to novel isoxazolines which are useful as antagonists of the platelet glycoprotein IIb/IIIa fibrinogen receptor complex, to pharmaceutical compositions containing such compounds, processes for preparing such compounds, and to methods of using these compounds, alone or in combination with other therapeutic agents, for the inhibition of platelet aggregation, as thrombolytics, and/or for the treatment of thromboembolic disorders.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: August 29, 1995
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: John Wityak, Thais M. Sielecki-Dzurdz
  • Patent number: 5428040
    Abstract: This invention relates to carbocyclic and heterocyclic fused-ring quinolinecarboxylic acid compounds, to pharmaceutical compositions comprising such compounds, and to methods of using such compounds for the treatment and/or prevention of organ transplantation rejection, graft versus host disease, autoimmune diseases, chronic inflammatory diseases, including but not limited to psoriasis and rheumatoid arthritis, and cancer in a mammal.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: June 27, 1995
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Ronald L. Magolda, William J. Pitts, Irina C. Jacobson, Carl H. Behrens, Michael J. Orwat, Douglas G. Batt
  • Patent number: 5424430
    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: September 10, 1993
    Date of Patent: June 13, 1995
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: James H. Jensen, Timothy D. Costello, Leon De Brabander, Jr., Matthew E. Voss
  • Patent number: 5393886
    Abstract: This invention relates to compounds, including 5-chloro-2-[2-[[(4-methylphenyl)sulfonyl]oxy]ethyl]-7-[2,4,6-trimethylphen yl)methoxy]anthra[1,9-cd]pyrazol-6(2H)-one and analogs thereof, which are useful as intermediates for the synthesis of anthrapyrazolone anticancer agents, including losoxantrone. This invention also relates to methods for the synthesis of anthrapyrazolone anticancer agents, including losoxantrone.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: February 28, 1995
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Lin-Hua Zhang, Joseph Auerbach
  • Patent number: 5393891
    Abstract: The present invention is directed to immunoassay reagents including specific antibodies to quinoline carboxylic acids, such as brequinar; novel quinoline carboxylic acid haptens useful as standards in immunoassays or for conjugating to large molecular weight carriers as immunogens or conjugating to detectable fluorescent moieties as tracer compounds. The present invention also relates to immunoassays for detecting quinoline carboxylic acids in clinical samples, and finally to kits containing said reagents.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: February 28, 1995
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Douglas G. Batt, William Galbraith, Paul M. Simon
  • Patent number: 5376664
    Abstract: This invention relates to unsymmetrical mono-3-nitro bis-naphthalimides of formula ##STR1## including (R,R)-2-{2-[2-((2-(1,3-dioxo-1H-benz[de]isoquinolin-2-(3H)-yl)-propylamino ))ethylamino]-1-methylethyl}-5-nitro-1H-benz[de]isoquinolin-1,3-(2H)-dione, processes for their preparation, pharmaceutical compositions containing them, and methods of using them to treat cancer, particularly solid tumor carcinomas, in mammals.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: December 27, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Robert F. Kaltenbach, III, Jung-Hui Sun, Robert J. Cherney, Steven P. Seitz
  • Patent number: 5364875
    Abstract: Disclosed are imidazoles linked to bicyclic heterocyclic groups, as inhibitors of acyl-CoA: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: November 15, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventor: Richard G. Wilde
  • Patent number: 5359070
    Abstract: This invention relates to unsymmetrical bis-imide compounds, and pharmaceutically acceptable salts thereof, of the formula (i): ##STR1## including (R,R)-1-[2-(acenaphthene-5,6-dicarboximido) propylamino]-2-[2-(3-nitronaphthalene-1,8-dicarboximido) propylamino]ethane, processes for the preparation of such compounds, pharmaceutical compositions containing such compounds, and methods of using such compounds to treat cancer, particularly solid tumor carcinomas, in mammals.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: October 25, 1994
    Assignee: The Du Pont Merck Pharmaceutical Company
    Inventors: Robert J. Cherney, Steven P. Seitz
  • 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: 5329048
    Abstract: This invention relates to bis-naphthalimides, including 2,2'-[1,2-ethanediylbis[imino(1-methy1-2,1-ethanediyl)]]-bis[5-nitro-1H-be nz[de]isoquinoline-1,3(2H)-dione] and 2,2'-[1,2-ethanediylbis[imino(2-methyl-2,1-ethanediyl)]]-bis[5-nitro-1H-be nz[de]isoquinoline-1,3(2H)-dione], processes for their preparation, pharmaceutical compositions containing them, and methods of using them to treat cancer in mammals.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: July 12, 1994
    Assignee: The DuPont Merck Pharmaceutical Company
    Inventor: Jung-Hui Sun
  • 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