Patents by Inventor Choung U. Kim

Choung U. Kim 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).

  • Publication number: 20020156300
    Abstract: The present invention provides new synthetic methods and compositions. In particular, new methods of preparing intermediates useful in the synthesis of neuraminidase inhibitors and compositions useful as intermediates that are themselves useful in the synthesis of neuraminidase inhibitors are provided.
    Type: Application
    Filed: September 27, 2001
    Publication date: October 24, 2002
    Applicant: GILEAD SCIENCES, INC.
    Inventors: Kenneth M. Kent, Choung U. Kim, Lawrence R. McGee, John D. Munger, Ernest J. Prisbe, Michael J. Postich, John C. Rohloff, Daphne E. Kelly, Matthew A. Williams, Lijun Zhang
  • Publication number: 20020058823
    Abstract: The present invention provides new synthetic methods and compositions. In particular, new methods of preparing intermediates useful in the synthesis of neuraminidase inhibitors and compositions useful as intermediates that are themselves useful in the synthesis of neuraminidase inhibitors are provided.
    Type: Application
    Filed: December 19, 2000
    Publication date: May 16, 2002
    Applicant: GILEAD SCIENCES, INC.
    Inventors: Kenneth M. Kent, Choung U. Kim, Lawrence R. McGee, John D. Munger, Ernest J. Prisbe, Michael J. Postich, John C. Rohloff, Daphne E. Kelly, Matthew A. Williams, Lijun Zhang
  • Patent number: 6376674
    Abstract: Novel compounds are described. The compounds generally comprise an acidic group, a basic group, a substituted amino or N-acyl and a group having an optionally hydroxylated alkane moiety. Pharmaceutical compositions comprising the inhibitors of the invention are also described. Methods of inhibiting neuraminidase in samples suspected of containing neuraminidase are also described. Antigenic materials, polymers, antibodies, conjugates of the compounds of the invention with labels, and assay methods for detecting neuraminidaseactivity are also described.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: April 23, 2002
    Assignee: Gilead Sciences, Inc.
    Inventors: Choung U. Kim, Matthew A. Williams
  • Patent number: 6225341
    Abstract: Novel compounds are described. The compounds generally comprise an acidic group, a basic group, a substituted amino or N-acyl and a group having an optionally hydroxylated alkane moiety. Pharmaceutical compositions comprising the inhibitors of the invention are also described. Methods of inhibiting neuraminidase in samples suspected of containing neuraminidase are also described. Antigenic materials, polymers, antibodies, conjugates of the compounds of the invention with labels, and assay methods for detecting neuraminidase activity are also described.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: May 1, 2001
    Assignee: Gilead Sciences, Inc.
    Inventors: Norbert W. Bischofberger, Choung U. Kim, Willard Lew, Hongtao Liu, Matthew A. Williams
  • Patent number: 6204398
    Abstract: The present invention provides new synthetic methods and compositions. In particular, new methods of preparing intermediates such as those having formulas (I)-(IV), useful in the synthesis of neuraminidase inhibitors and compositions useful as intermediates that are themselves useful in the synthesis of neuraminidase inhibitors are provided.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: March 20, 2001
    Assignee: Gilead Sciences, Inc.
    Inventors: Kenneth M. Kent, Choung U. Kim, Lawrence R. McGee, John D. Munger, Ernest J. Prisbe, Michael J. Postich, John C. Rohloff, Daphne E. Kelly, Matthew A. Williams, Lijun Zhang
  • Patent number: 6111132
    Abstract: Novel compounds of Formula (I) are described. R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are described in this specification.Synthetic intermediates and pharmaceutical compositions comprising the inhibitors of the invention are also described. Methods of inhibiting neuraminidase in samples suspected of containing neuraminidase are also described. Assay methods for detecting neuraminidase activity are also described.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: August 29, 2000
    Assignee: Gilead Sciences, Inc.
    Inventors: Choung U. Kim, Willard Lew
  • Patent number: 6069249
    Abstract: Novel compounds are provided that comprise esters of antiviral phosphonomethoxy nucleotide analogs with carbonates and/or carbamates having the structure --OC(R.sup.2).sub.2 OC(O)X(R).sub.a, wherein R.sup.2 independently is H, C.sub.1 -C.sub.12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro or OR.sup.3 in which R.sup.3 is C.sub.1 -C.sub.12 alkyl; X is N or O; R is independently H, C.sub.1 -C.sub.12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro, --O--, --N.dbd., --NR.sup.4 --, --N(R.sup.4).sub.2 -- or OR.sup.3, R.sup.4 independently is --H or C.sub.1 -C.sub.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: May 30, 2000
    Assignee: Gilead Sciences, Inc.
    Inventors: Murty N. Arimilli, Kenneth C. Cundy, Joseph P. Dougherty, Choung U. Kim, Reza Oliyai, Valentino J. Stella
  • Patent number: 6057459
    Abstract: The present invention provides new synthetic methods and compositions. In particular, new methods of preparing intermediates useful in the synthesis of neuraminidase inhibitors and compositions useful as intermediates that are themselves useful in the synthesis of neuraminidase inhibitors are provided.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: May 2, 2000
    Assignee: Gilead Sciences, Inc.
    Inventors: Kenneth M. Kent, Choung U. Kim, Lawrence R. McGee, John D. Munger, Jr., Ernest J. Prisbe, Michael J. Postich, John C. Rohloff, Daphne E. St. John, Matthew A. Williams, Lijun Zhang
  • Patent number: 6043230
    Abstract: Novel compounds are provided that comprise esters of antiviral phosphonomethoxy nucleotide analogs with carbonates and/or carbamates having the structure -OC(R.sup.2).sub.2 OC(O) X(R).sub.a, wherein R.sup.2 independently is H, C.sub.1 -C.sub.12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro or OR.sup.3 in which R.sup.3 is C.sub.1 -C12 alkyl; X is N or O; R is independently H, C.sub.1 -C.sub.12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, axido, nitro, --O--, --N.dbd., --NR.sup.4 --, --N(R.sup.4).sub.2 -- or OR.sup.3, R.sup.4 independently is --H or C.sub.1 -C.sub.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: March 28, 2000
    Assignee: Gilead Sciences, Inc.
    Inventors: Murty N. Arimilli, Kenneth C. Cundy, Joseph P. Dougherty, Choung U. Kim, Reza Oliyai, Valentino J. Stella
  • Patent number: 6034118
    Abstract: Tri- and tetra substituted thiepane compositions having use as immunogens, therapeutics, diagnostics and for other industrial purposes are disclosed. The compositions inhibit proteolytic activity of viral enzymes and are useful for the inhibition of such enzymes as well as in assays for the detection of such enzymes. Embodiments in which antigenic polypeptides are bonded to the compositions are useful in raising antibodies against the thiepane haptens or the polypeptide. Labeled thiepanes of this invention are useful as diagnostic reagents.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: March 7, 2000
    Assignee: Gilead Sciences, Inc.
    Inventors: Norbert W. Bischofberger, Choung U. Kim, Steven H. Krawczyk, Lawrence R. McGee, Michael J. Postich, Wenjin Yang
  • Patent number: 5994377
    Abstract: Novel compounds are described. The compounds generally comprise an acidic group, a basic group, a substituted amino or N-acyl and a group having an optionally hydroxylated alkane moiety. Pharmaceutical compositions comprising the inhibitors of the invention are also described. Methods of inhibiting neuraminidase in samples suspected of containing neuraminidase are also described. Antigenic materials, polymers, antibodies, conjugates of the compounds of the invention with labels, and assay methods for detecting neuraminidase activity are also described.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: November 30, 1999
    Assignee: Gilead Sciences, Inc.
    Inventors: Choung U. Kim, Matthew A. Williams
  • Patent number: 5977089
    Abstract: Compounds are provided that comprise esters of antiviral phosphonomethoxy nucleotide analogs with carbonates and/or carbamates having the structure --OC(R.sup.2).sub.2 OC(O)X(R).sub.a, wherein R.sup.2 independently is H, C.sub.1 -C.sub.12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro or OR.sup.3 in which R.sup.3 is C.sub.1 -C.sub.12 alkyl; X is N or O; R is independently H, C.sub.1 -C.sub.12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro, --O--, --N.dbd., --NR.sup.4 --, --N(R.sup.4).sub.2 -- or OR.sup.3, R.sup.4 independently is --H or C.sub.1 -C.sub.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: November 2, 1999
    Assignee: Gilead Sciences, Inc.
    Inventors: Murty N. Arimilli, Kenneth C. Cundy, Joseph P. Dougherty, Choung U. Kim, Reza Oliyai, Valentino J. Stella
  • Patent number: 5958973
    Abstract: The present invention is directed to compositions of the formula: ##STR1## wherein: R.sub.2 is H, or an alkyl group having 1 to 3 carbon atoms and 0 to 2 hydroxyls;R.sub.3 is H, or hydroxyl;R.sub.4 is H, or forms a hydrolyzable ester or amide with --CO.sub.2 --;R.sub.5 are H, or are taken together to form .dbd.NH; andR.sub.6 comprises an amine, or a group having 1 to 12 carbon atoms and 1 to 3 amine groups. The invention is also directed to methods of inhibiting the activity of neuraminidase using the compounds of the invention.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 28, 1999
    Assignee: Gilead Sciences, Inc.
    Inventors: Norbert W. Bischofberger, Choung U. Kim, Willard Lew, Hongtao Liu, John C. Martin, Sundaramoorthi Swaminathan, Matthew A. Williams
  • Patent number: 5952375
    Abstract: Novel compounds are described. The compounds generally comprise an acidic group, a basic group, a substituted amino or N-acyl and a group having an optionally hydroxylated alkane moiety. Pharmaceutical compositions comprising the inhibitors of the invention are also described. Methods of inhibiting neuraminidase in samples suspected of containing neuraminidase are also described. Antigenic materials, polymers, antibodies, conjugates of the compounds of the invention with labels, and assay methods for detecting neuraminidase activity are also described.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: September 14, 1999
    Assignee: Gilead Sciences, Inc.
    Inventors: Norbert W. Bischofberger, Choung U. Kim, Willard Lew, Hongtao Liu, Matthew A. Williams
  • Patent number: 5922695
    Abstract: Novel compounds are provided that comprise esters of antiviral phosphonomethoxy nucleotide analogs with carbonates and/or carbamates having the structure --OC(R.sup.2).sub.2 OC(O)X(R).sub.a, wherein R.sup.2 independently is H, C.sub.1 -C.sub.12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro or OR.sup.3 in which R.sup.3 is C.sub.1 -C12 alkyl; X is N or O; R is independently H, C.sub.1 -C.sub.12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro, --O--, --N.dbd., --NR.sup.4 --, --N(R.sup.4).sub.2 -- or OR.sup.3, R.sup.4 independently is --H or C.sub.1 -C.sub.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: July 13, 1999
    Assignee: Gilead Sciences, Inc.
    Inventors: Murty N. Arimilli, Kenneth C. Cundy, Joseph P. Dougherty, Choung U. Kim, Reza Oliyai, Valentino J. Stella
  • Patent number: 5886213
    Abstract: The present invention provides new synthetic methods and compositions. In particular, new methods of preparing intermediates useful in the synthesis of neuraminidase inhibitors and compositions useful as intermediates that are themselves useful in the synthesis of neuraminidase inhibitors are provided.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: March 23, 1999
    Assignee: Gilead Sciences, Inc.
    Inventors: Kenneth M. Kent, Choung U. Kim, Lawrence R. McGee, John D. Munger, Ernest J. Prisbe, Michael J. Postich, John C. Rohloff, Daphne E. Kelly, Matthew A. Williams, Lijun Zhang
  • Patent number: 5866601
    Abstract: Novel carbocyclic compounds are described. The compounds generally comprise an acidic group, a basic group, a substituted amino or N-acyl and a group having an optionally hydroxylated alkane moiety. Pharmaceutical compositions comprising the inhibitors of the invention are also described. Methods of inhibiting neuraminidase in samples suspected of containing neuraminidase are also described. Antigenic materials, polymers, antibodies, conjugates of the compounds of the invention with labels, and assay methods for detecting neuraminidase activity are also described.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 2, 1999
    Assignee: Gilead Sciences, Inc.
    Inventors: Willard Lew, Choung U. Kim, Hongtao Liu, Matthew A. Williams
  • Patent number: 5859284
    Abstract: The present invention provides new synthetic methods and compositions. In particular, new methods of preparing intermediates useful in the synthesis of neuraminidase inhibitors and compositions useful as intermediates that are themselves useful in the synthesis of neuraminidase inhibitors are provided.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: January 12, 1999
    Assignee: Gilead Sciences, Inc.
    Inventors: Kenneth M. Kent, Choung U. Kim, Lawrence R. McGee, John D. Munger, Jr., Ernest J. Prisbe, Michael J. Postich, John C. Rohloff, Daphne E. St. John, Matthew A. Williams, Lijun Zhang
  • Patent number: 5811450
    Abstract: Tri- and tetra substituted thiepane compositions having use as immunogens, therapeutics, diagnostics and for other industrial purposes are disclosed. The compositions inhibit proteolytic activity of viral enzymes and are useful for the inhibition of such enzymes as well as in assays for the detection of such enzymes. Embodiments in which antigenic polypeptides are bonded to the compositions are useful in raising antibodies against the thiepane haptens or the polypeptide. Labeled thiepanes of this invention are useful as diagnostic reagents.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: September 22, 1998
    Assignee: Gilead Sciences, Inc.
    Inventors: Norbert W. Bischofberger, Choung U. Kim, Steven H. Krawczyk, Lawrence R. McGee, Michael J. Postich, Wenjin Yang
  • Patent number: 5763483
    Abstract: Novel carbocyclic compounds are described. The compounds generally comprise an acidic group, a basic group, a substituted amino or N-acyl and a group having an optionally hydroxylated alkane moiety. Pharmaceutical compositions comprising the inhibitors of the invention are also described. Methods of inhibiting neuraminidase in samples suspected of containing neuraminidase are also described. Antigenic materials, polymers, antibodies, conjugates of the compounds of the invention with labels, and assay methods for detecting neuraminidase activity are also described.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: June 9, 1998
    Assignee: Gilead Sciences, Inc.
    Inventors: Norbert W. Bischofberger, Choung U. Kim, Willard Lew, Hongtao Liu, Matthew A. Williams