Patents by Inventor Arthur J. Elliott

Arthur J. Elliott has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6946554
    Abstract: Derivatives of 9-deazaguanine of the formula I: are prepared by reacting an aldehyde or ketone of the formula II: with a dialkylaminomalonate to produce an enamine. The enamine is then reacted with a base to produce a pyrrole represented by the formula: The pyrrole is reacted with a compound represented by the formula R3OC(O)N?C(Z)NHC(O)OR3 or a derivative of carbamimidoic acid to provide a protected guanidine compound. The guanidine compound is converted to the desired deazaguanine by reaction with 1) trifluoracetic acid or 2) C1-C4 alkoxide or alkali metal or alkaline earth metal hydroxide followed by neutralization with an acid.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: September 20, 2005
    Assignee: BioCryst Pharmaceuticals, Inc.
    Inventors: Arthur J. Elliott, David A. Walsh, Philip E. Morris
  • Publication number: 20040254181
    Abstract: Derivatives of 9-deazaguanine are prepared by reacting an aldehyde or ketone with a dialkylaminomalonate to form the corresponding enamine. The enamine is then reacted with a base to form a cyclic pyrrole. The cyclic pyrrole is reacted with an urea compound or a derivative of carbamimidoic acid to provide a protected guanidino compound. The guanidino is converted to the desired 9-deazaguanine derivative by reacting with trifluoracetic acid or with an alkoxide or hydroxide followed by neutralization with an acid.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 16, 2004
    Applicant: BioCryst Pharmaceuticals, Inc.
    Inventors: Arthur J. Elliott, David A. Walsh, Philip E. Morris
  • Patent number: 6762316
    Abstract: The invention relates to methods for preparing substituted cyclopentene compounds, their intermediates and use as neuraminidase inhibitors.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: July 13, 2004
    Assignee: BioCryst Pharmaceuticals, Inc.
    Inventors: Pooran Chand, Arthur J. Elliott
  • Patent number: 6551468
    Abstract: A process for preparing isoflurane (1-chloro-2,2,2-trifluoroethyl difluoromethyl ether) by reacting PFE (2,2,2-trifluoroethyl difluoromethyl ether) with chlorine in the presence of ultraviolet light and added water, at a low temperature and/or at a high conversion.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: April 22, 2003
    Inventors: William J. O'Donnell, Paul Mazzell, Jr., Lee G. Sprague, Arthur J. Elliott
  • Patent number: 5650511
    Abstract: Derivatives of 9-deazaguanine are prepared by reacting an aldehyde or ketone with a dialkylaminomalonate to form the corresponding enamine. The enamine is then reacted with a base to form a cyclic pyrrole. The cyclic pyrrole is reacted with an urea compound to provide a protected guanidino compound. The guanidino is converted to the desired 9-deazaguanine derivative by reacting with trifluoracetic acid or with an alkoxide or hydroxide followed by neutralization with an acid.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: July 22, 1997
    Assignee: BioCryst Pharmaceuticals, Inc.
    Inventors: Arthur J. Elliott, David A. Walsh
  • Patent number: 4996202
    Abstract: Substituted 8-amino-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepines useful in treating mental disorders and which have activities of prolonged duration are disclosed. Methods for preparing these compounds and methods for their use are also described.
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: February 26, 1991
    Assignee: Schering Corporation
    Inventors: Joel G. Berger, Wei K. Chang, Elijah H. Gold, Arthur J. Elliott
  • Patent number: 4877801
    Abstract: Novel compounds including 1-aryl-1-(1H-imidazol-1-ylmethyl)-1,3-dihydroisobenzofurans such as 1-(4-chlorophenyl)-1-(1H-imidazol-1-ylmethyl)-1,3-dihydroisobenzofuran, and 1-aryl-1-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dihydroisobenzofurans are disclosed. The corresponding benzo[c]thiophenes, isochromans, and isothiochromans and antifungal pharmaceutical compositions containing same, and methods of using said pharmaceutical compositions to elicit an antifungal response in warm blooded animals having a susceptible antifungal infection are also disclosed.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: October 31, 1989
    Assignee: Schering Corporation
    Inventors: Raymond G. Lovey, Arthur J. Elliott
  • Patent number: 4737508
    Abstract: Novel compounds including 1-aryl-1-(1H-imidazol-1-ylmethyl)-1,3-dihydroisobenzofurans such as 1-(4-chlorophenyl)-1-(1H-imidazol-1-ylmethyl)-1,3-dihydroisobenzofuran, and 1-aryl-1-(1H-1,2,4-trizazol-1-ylmethyl)-1,3-dihydroisobenzofurans are disclosed. The corresponding benzo[c]thiopenes, isochromans, and isothiochromans and antifungal pharmaceutical compositions containing same, and methods of using said pharmaceutical compositions to elicit an antifungal response in warm blooded animals having a susceptible antifungal infection are also disclosed.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: April 12, 1988
    Assignee: Schering Corporation
    Inventors: Raymond G. Lovey, Arthur J. Elliott
  • Patent number: 4634797
    Abstract: A process for the coupling of a chloroperfluoroalkane having a --CFCl.sub.2 moiety which comprises heating the alkane at a temperature of about 150.degree. to 260.degree. C. in the presence of at least about 0.1 times the molar amount each of copper and zinc at a mole ratio of copper:zinc from about 2:1 to 1:2. The product is obtained in relatively high yield and conversion.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: January 6, 1987
    Assignee: Halocarbon Products Corporation
    Inventor: Arthur J. Elliott
  • Patent number: 4618718
    Abstract: In the reaction of a 2,2,2-trifluoroethyl halide with ammonia to produce 2,2,2-trifluoroethylamine, the improvement which comprises effecting the reaction with from about 1 to 3 moles of ammonia per mole of the trifluoroethyl halide at a temperature of about 170.degree. to 240.degree. C. and a pressure less than about 300 psig in the presence of a substantially anhydrous inert solvent present in at least about the same molar amount as the trifluoroethyl halide. Advantageously the temperature is from about 200.degree. to 220.degree. C., the pressure is at most about 250 psig, the solvent is N-methylpyrrolidone present in at least about 3 times the molar amount of the trifluoroethyl halide, and the halide is the chloride.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: October 21, 1986
    Assignee: Halocarbon Products Corporation
    Inventors: Arthur J. Elliott, Gary W. Astrologes
  • Patent number: 4160092
    Abstract: 1-Methyl-6-substituted-4-phenyl-quinazolin-2-one-3-oxides and their use as intermediates in the preparation of 3-fluorobenzodiazepines which are useful as tranquilizers, muscle relaxants and sedatives.
    Type: Grant
    Filed: June 16, 1977
    Date of Patent: July 3, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Elena M. Bingham, Arthur J. Elliott