Patents Assigned to Dupont Pharmaceuticals
  • Patent number: 6241962
    Abstract: Novel radiopharmaceutical compositions comprising, in combination with a pharmaceutically acceptable carrier, a radioactive salt of pyrophosphoric acid. Also provided are novel radiopharmaceutical compositions comprising, in combination with one or more polymeric resins, a radioactive salt of pyrophosphoric acid. The compositions and matrices are suitable, inter alia, for use in treatment methods involving brachytherapy.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: June 5, 2001
    Assignee: Dupont Pharmaceuticals Company
    Inventors: Jorge Osvaldo Nicolini, Ricardo Julio Ughetti
  • Patent number: 6238695
    Abstract: The present invention provides improved oral dosage form formulations of efavirenz that are useful in the inhibition of human immunodeficiency virus (HIV), the prevention or treatment of infection by HIV, and in the treatment of the resulting acquired immune deficiency syndrome (AIDS). In particular, the present invention relates to compressed tablets or capsules comprising efavirenz that contain one or more disintegrants that enhance the dissolution rate of the efavirenz in the gastrointestinal tract thereby improving the rate and extent of absorption of efavirenz in the body. The present invention also relates to the process of making such tablets or capsules.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: May 29, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: William T. Makooi-Morehead, John D. Buehler, Brian R. Landmann
  • Patent number: 6239143
    Abstract: The present invention relates to compounds having pharmacological activity toward the 5-HT7 receptor. Pharmaceutical compositions and methods for their use in the treatment of CNS disorders are described.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: May 29, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: Gary Avonn Cain, John Francis McElroy
  • Patent number: 6235957
    Abstract: The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one; a useful human immunodeficiency virus (HIV) reverse transcriptase inhibitor.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: May 22, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventor: Anusuya Choudhury
  • Patent number: 6235733
    Abstract: A palatable oral liquid pharmaceutical composition of benzoxazinone compounds useful as HIV reverse transcriptase inhibitors comprising the benzoxazinone active ingredient in a liquid vehicle comprising medium chain fatty acid triglycerides. Other formulating agents such as sweetening agents, lecithin suspending agents, etc. may be optionally added.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: May 22, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: Surendra M. Bahal, Michael B. Maurin
  • Patent number: 6225317
    Abstract: The potent reverse transcriptase inhibitor (−)-6-Chloro-4-cyclopropylethynyl-4-trifluoromethyl-3,4-dihydro-2(1H)-quinazolinone is produced in solvate and crystalline form. These forms are designated Forms 1 and 2, and are characterized by x-ray powder diffraction and differential scanning calorimetry. Pharmaceutical compositions and methods are useful for the treatment of the human immunodeficiency virus (HIV).
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: May 1, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: Shelley R. Rabel, Mona Patel, Rodney Lawrence Parsons, Jr.
  • Patent number: 6218534
    Abstract: A process for the preparation of asymmetric cyclic ureas of Formula (VI) starting from the diamine of Formula (I).
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: April 17, 2001
    Assignee: Dupont Pharmaceuticals Company
    Inventors: Benjamin R. P. Stone, Luigi Anzalone, Joseph M. Fortunak, Gregory D. Harris, Ioannis I. Valvis, Robert E. Waltermire
  • Patent number: 6218386
    Abstract: The present invention relates to compounds of formula I: or pharmaceutically acceptable salt forms or prodrugs thereof, which are useful as inhibitors of HIV protease, and to pharmaceutical compositions and diagnostic kits comprising the same, and methods of using the same for treating viral infection or as an assay standard or reagent.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: April 17, 2001
    Assignee: Dupont Pharmaceuticals
    Inventors: James David Rodgers, Patrick Yuk-Sun Lam
  • Patent number: 6218391
    Abstract: Corticotropin releasing factor (CRF) antagonists of Formula (I) and their use in treating psychiatric disorders and neurological diseases including major depression, anxiety-related disorders, post-traumatic stress disorders, supranuclear palsy and eating disorders.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: April 17, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: Argyrios Georgios Arvanitis, Richard E. Olson, Charles R. Arnold, III, William E. Frietze
  • Patent number: 6214847
    Abstract: The present invention relates to processes for the synthesis of a crystalline polymorph of 10,10-Bis((2-fluoro-4-pyridinyl)methyl)-9(10H)-Anthracenone in high purity. The product is useful in the synthesis of pharmaceutical compounds for the reduction of cholinergic system dysfunction.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: April 10, 2001
    Assignee: Dupont Pharmaceuticals Company
    Inventors: Jaan A. Pesti, Joseph M. Fortunak, George F. Huhn, Michael Maurin, Jianguo Yin
  • Patent number: 6214851
    Abstract: This invention relates generally to N-adamant-1-yl-N′-[4-chlorobenzothiazol-2-yl] urea, pharmaceutical compositions comprising the same, and methods of using the same in the treatment of inflammation and as an anticancer radiosensitizing agent.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: April 10, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: John J. V. Duncia, Daniel S. Gardner, IV, Joseph B Santella, III
  • Patent number: 6214834
    Abstract: This invention relates to novel heterocycles which are useful as antagonists of the &agr;v&bgr;3 integrin and related cell surface adhesive protein receptors, to pharmaceutical compositions containing such compounds, to iontophoretic delivery of such compounds, and to methods of using these compounds, alone or in combination with other therapeutic agents, for the inhibition of cell adhesion, the treatment of angiogenic disorders, inflammation, bone degradation, cancer metastasis, diabetic retinopathy, thrombosis, restenosis, macular degeneration, and other conditions mediated by cell adhesion and/or cell migration and/or angiogenesis.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: April 10, 2001
    Assignee: Dupont Pharmaceuticals Company
    Inventors: Prabhakar K. Jadhav, Douglas G. Batt, Munir A. Hussain, William J. Pitts, Arnold J. Repta
  • Patent number: 6207697
    Abstract: The present application describes inhibitors of factor Xa of formula I: or pharmaceutically acceptable salt forms thereof, wherein W, W1, W2, and W3 may be N or C and J, Ja, and Jb combine to form a substituted carbocycle or heterocycle.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: March 27, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: Qi Han, Celia Dominguez, Eugene C. Amparo, Jeongsook M. Park, Mimi L. Quan, Karen A. Rossi
  • Patent number: 6204262
    Abstract: The present invention relates to 1,3-benzodiazepin-2-ones and 1,3-benzoxazepin-2-ones of formula I: or stereoisomeric forms, stereoisomeric mixtures, or pharmaceutically acceptable salt forms thereof, which are useful as inhibitors of HIV reverse transcriptase, and to pharmaceutical compositions and diagnostic kits comprising the same, and methods of using the same for treating viral infection or as an assay standard or reagent.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: March 20, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: James D. Rodgers, Anthony J. Cocuzza, Donna M. Bilder
  • Patent number: 6194569
    Abstract: Processes for the preparation of [S-(R,S)]-N-[1,3-benzodioxol-5-yl)butyl]-3,3-diethyl-2[4-[4-methyl-1-piperazinyl)carbonyl]phenoxy]-4-oxo-l-azetidine carboxamide, a useful inhibitor of human leukocyte elastase (HLE), are described. The process including (a) contacting a compound of formula (II): with a compound of formula (III): in a first polar solvent system in the presence of an aqueous base and a phase transfer catalyst, to form the title compound, or a salt form thereof.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: February 27, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: Patrick J. Sheeran, Luigi Anzalone, Hui-Yin Li, Joseph M. Fortunak, Louis Storace
  • Patent number: 6191159
    Abstract: The present application describes disubstituted pyrazolines and triazolines of formulae I and II: or pharmaceutically acceptable salt forms thereof, wherein one of M1 and M2 maybe N and D may be a variety of N-containing groups, which are useful as inhibitors of factor Xa.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: February 20, 2001
    Assignee: Dupont Pharmaceuticals Company
    Inventor: Donald J. P. Pinto
  • Patent number: 6191131
    Abstract: Corticotropin releasing factor (CRF) antagonists of formula I or II: and their use in treating anxiety, depression, and other psychiatric, neurological disorders as well as treatment of immunological, cardiovascular or heart-related diseases and colonic hypersensitivity associated with psychopathological disturbance and stress.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: February 20, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: Liqi He, Paul Gilligan, Robert Chorvat, Argyrios Georgios Arvanitis
  • Patent number: 6187797
    Abstract: The present application describes oxygen and sulfur containing heteroaromatics and derivatives thereof of formula or pharmaceutically acceptable salt or prodrug forms thereof, wherein J is O or S and D may be C(═NH)NH2, which are useful as inhibitors of factor Xa.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: February 13, 2001
    Assignee: Dupont Pharmaceuticals Company
    Inventors: James Russell Pruitt, John Matthew Fevig, Mimi Lifen Quan, Donald Joseph Phillip Pinto
  • Patent number: 6187918
    Abstract: Novel chiral aminoalcohol catalysts and methods for their preparation are provided. The first catalyst is prepared via selective hydrogenation of one of two benzene rings in a precursor. The aminoalcohol promotes the asymmetric addition of organozinc reagents to aldehydes to afford optically active alcohols or their esters. The second catalyst is prepared by selective dialkylation of 3-exo-aminoisoborneol with a 2-haloethyl ether. The aminoalcohol promotes the addition of organozinc reagents to aliphatic aldehydes containing a &bgr;-branch with greatly enhanced enantioselectivity relative to DAIB.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: February 13, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventor: William A. Nugent
  • Patent number: 6185453
    Abstract: This invention relates to novel methods and devices for iontophoretically administering therapeutic doses of integrin receptor antagonists in a controlled manner through the skin. Such integrin receptor antagonists include but are not limited to antagonists of the IIb/IIIa and &agr;v&bgr;3 integrins and related cell surface adhesive protein receptors. The present invention includes iontophoretic delivery devices comprising integrin inhibitors. Such methods and devices are useful, alone or in combination with other therapeutic agents, for the treatment of thromboembolic disorders, angiogenic disorders, inflammation, bone degradation, cancer metastasis, diabetic retinopathy, restenosis, macular degeneration, and other conditions mediated by cell adhesion and/or cell migration and/or angiogenesis.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: February 6, 2001
    Assignee: DuPont Pharmaceuticals Company
    Inventors: Munir A. Hussain, Arnold J. Repta