Patents by Inventor Ernest J. Prisbe
Ernest J. Prisbe 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).
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Patent number: 7803788Abstract: A novel method has led to the identification of novel mixed ester-amidates of PMPA for retroviral or hepadnaviral therapy, including compounds of structure (5a) having substituent groups as defined herein. Compositions of these novel compounds in pharmaceutically acceptable excipients and their use in therapy and prophylaxis are provided.Type: GrantFiled: April 28, 2008Date of Patent: September 28, 2010Assignee: Gilead Sciences, Inc.Inventors: Mark W. Becker, Harlan H. Chapman, Tomas Cihlar, Eugene J. Eisenberg, Gong-Xin He, Michael R. Kernan, William A. Lee, Ernest J. Prisbe, John C. Rohloff, Mark L. Sparacino
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Publication number: 20090149648Abstract: Nucleotide analogs characterized by the presence of an amidate linked amino acid or an ester linked group which is bonded to the phosphorus atom of phosphonate nucleotide analogs are disclosed. The analogs comprise a phosphoamidate or ester bond that is hydrolyzed in vivo to yield a corresponding phosphonate nucleotide analog. Methods and intermediates for their synthesis and use are described.Type: ApplicationFiled: September 16, 2008Publication date: June 11, 2009Applicant: Gilead Sciences, Inc.Inventors: Norbert W. Bischofberger, Robert J. Jones, Murty N. Armilli, Kuei-Ying Lin, Michael S. Louie, Lawrence R. McGee, Ernest J. Prisbe, William A. Lee, Kenneth C. Cundy
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Patent number: 7439350Abstract: Nucleotide analogs characterized by the presence of an amidate linked amino acid or an ester linked group which is bonded to the phosphorus atom of phosphonate nucleotide analogs are disclosed. The analogs comprise a phosphoamidate or ester bond that is hydrolyzed in vivo to yield a corresponding phosphonate nucleotide analog. Methods and intermediates for their synthesis and use are described.Type: GrantFiled: June 29, 2004Date of Patent: October 21, 2008Assignee: Gilead Sciences, Inc.Inventors: Norbert W. Bischofberger, Robert J. Jones, Murty N. Arimilli, Kuei-Ying Lin, Michael S. Louie, Lawrence R. McGee, Ernest J. Prisbe, William A. Lee, Kenneth C. Cundy
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Publication number: 20080227754Abstract: A novel method has led to the identification of novel mixed ester-amidates of PMPA for retroviral or hepadnaviral therapy, including compounds of structure (5a) having substituent groups as defined herein. Compositions of these novel compounds in pharmaceutically acceptable excipients and their use in therapy and prophylaxis are provided.Type: ApplicationFiled: April 28, 2008Publication date: September 18, 2008Inventors: Mark W. Becker, Harlan H. Chapman, Tomas Cihlar, Eugene J. Eisenberg, Gong-Xin He, Michael R. Kernan, William A. Lee, Ernest J. Prisbe, John C. Rohloff, Mark L. Sparacino
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Patent number: 7390791Abstract: A novel method has led to the identification of novel mixed ester-amidates of PMPA for retroviral or hepadnaviral therapy, including compounds of structure (5a) having substituent groups as defined herein. Compositions of these novel compounds in pharmaceutically acceptable excipients and their use in therapy and prophylaxis are provided.Type: GrantFiled: March 11, 2004Date of Patent: June 24, 2008Assignee: Gilead Sciences, Inc.Inventors: Mark W. Becker, Harlan H. Chapman, Tomas Cihlar, Eugene J. Eisenberg, Gong-Xin He, Michael R. Kernan, William A. Lee, Ernest J. Prisbe, John C. Rohloff, Mark L. Sparacino
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Publication number: 20040242465Abstract: Nucleotide analogs characterized by the presence of an amidate linked amino acid or an ester linked group which is bonded to the phosphorus atom of phosphonate nucleotide analogs are disclosed. The analogs comprise a phosphoamidate or ester bond that is hydrolyzed in vivo to yield a corresponding phosphonate nucleotide analog. Methods and intermediates for their synthesis and use are described.Type: ApplicationFiled: June 29, 2004Publication date: December 2, 2004Inventors: Norbert W. Bischofberger, Robert J. Jones, Murty N. Arimilli, Kuei-Ying Lin, Michael S. Louie, Lawrence R. McGee, Ernest J. Prisbe, William A. Lee, Kenneth C. Cundy
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Publication number: 20040018150Abstract: A novel method is provided for screening prodrugs of methoxyphosphonate nucleotide analogues to identify prodrugs selectively targeting desired tissues with antiviral or antitumor activity. This method has led to the identification of novel mixed ester-amidates of PMPA for retroviral or hepadnaviral therapy, including compounds of structure (5a) having substituent groups as defined herein. Compositions of these novel compounds in pharmaceutically acceptable excipients and their use in therapy and prophylaxis are provided. Also provided is an improved method for the use of magnesium alkoxide for the preparation of starting materials and compounds for use herein.Type: ApplicationFiled: January 14, 2003Publication date: January 29, 2004Inventors: Mark W. Becker, Harlan H. Chapman, Tomas Cihlar, Eugene J. Eisenberg, Gong-Xi He, Michael R. Kernan, William A. Lee, Ernest J. Prisbe, John C. Rohloff, Mark L. Sparacino
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Publication number: 20030219727Abstract: A novel method is provided for screening prodrugs of methoxyphosphonate nucleotide analogues to identify prodrugs selectively targeting desired tissues with antiviral or antitumor activity.Type: ApplicationFiled: June 16, 2003Publication date: November 27, 2003Inventors: Mark W. Becker, Harlan H. Chapman, Tomas Cihlar, Eugene J. Eisenberg, Gong-Xin He, Michael R. Kernan, William A. Lee, Ernest J. Prisbe, John C. Rohloff, Mark L. Sparacino
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Patent number: 6518438Abstract: 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: GrantFiled: September 27, 2001Date of Patent: February 11, 2003Assignee: 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
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Publication number: 20020156300Abstract: 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: ApplicationFiled: September 27, 2001Publication date: October 24, 2002Applicant: 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
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Patent number: 6465649Abstract: Disclosed are methods for the dealkylation of phosphonate esters by use of trimethylchlorosilane as the dealkylating agent. In particular, this invention is directed to the discovery that high yields for the dealkylation of phosphonate esters can be achieved within relatively short reaction times by the use of trimethylchlorosilane provided that the dealkylation procedure occurs in a sealed vessel containing a compatible solvent.Type: GrantFiled: August 17, 2000Date of Patent: October 15, 2002Assignee: Gilead Sciences, Inc.Inventors: Arnold J. Gutierrez, Ernest J. Prisbe, John C. Rohloff
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Patent number: 6451340Abstract: The invention provides crystalline forms of adefovir dipivoxil and methods to prepare the crystals. The compositions and methods of the present invention have desirable properties for large scale synthesis of crystalline adefovir dipivoxil or for its formulation into therapeutic dosages. Invention compositions include an anhydrous crystal form of adefovir dipivoxil.Type: GrantFiled: September 10, 2001Date of Patent: September 17, 2002Assignee: Gilead Sciences, Inc.Inventors: Murty N. Arimilli, Daphne E. Kelly, Thomas T. K. Lee, Lawrence V. Manes, John D. Munger, Jr., Ernest J. Prisbe, Lisa M. Schultze
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Publication number: 20020119443Abstract: A novel method is provided for screening prodrugs of methoxyphosphonate nucleotide analogues to identify prodrugs selectively targeting desired tissues with antiviral or antitumor activity.Type: ApplicationFiled: July 20, 2001Publication date: August 29, 2002Applicant: GILEAD SCIENCES, INC.Inventors: Mark W. Becker, Harlan H. Chapman, Tomas Cihlar, Eugene J. Eisenberg, Gong-Xin He, Michael R. Kernan, William A. Lee, Ernest J. Prisbe, John C. Rohloff, Mark L. Sparacino
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Publication number: 20020058823Abstract: 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: ApplicationFiled: December 19, 2000Publication date: May 16, 2002Applicant: 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
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Publication number: 20020045599Abstract: The invention provides crystalline forms of adefovir dipivoxil and methods to prepare the crystals. The compositions and methods of the present invention have desirable properties for large scale synthesis of crystalline adefovir dipivoxil or for its formulation into therapeutic dosages. Invention compositions include an anhydrous crystal form of adefovir dipivoxil.Type: ApplicationFiled: September 10, 2001Publication date: April 18, 2002Applicant: Gilead Sciences, Inc.Inventors: Murty N. Arimilli, Daphne E. Kelly, Thomas T.K. Lee, Lawrence V. Manes, John D. Munger, Ernest J. Prisbe, Lisa M. Schultze
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Publication number: 20010041794Abstract: Nucleotide analogs characterized by the presence of an amidate linked amino acid or an ester linked group which is bonded to the phosphorus atom of phosphonate nucleotide analogs are disclosed. The analogs comprise a phosphoamidate or ester bond that is hydrolyzed in vivo to yield a corresponding phosphonate nucleotide analog. Methods and intermediates for their synthesis and use are described.Type: ApplicationFiled: March 7, 2001Publication date: November 15, 2001Applicant: GILEAD SCIENCES, INC.Inventors: Norbert W. Bischofberger, Robert J. Jones, Murty N. Arimilli, Kuei-Ying Lin, Michael S. Louie, Lawrence R. McGee, Ernest J. Prisbe, William A. Lee, Kenneth C. Cundy
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Patent number: 6225460Abstract: Nucleotide analogs characterized by the presence of an amidate linked amino acid or an ester linked group which is bonded to the phosphorus atom of phosphonate nucleotide analogs are disclosed. The analogs comprise a phosphoamidate or ester bond that is hydrolyzed in vivo to yield a corresponding phosphonate nucleotide analog. Methods and intermediates for their synthesis and use are described.Type: GrantFiled: February 10, 1999Date of Patent: May 1, 2001Assignee: Gilead Sciences, Inc.Inventors: Norbert W. Bischofberger, Robert J. Jones, Murty N. Arimilli, Kuei-Ying Lin, Michael S. Louie, Lawrence R. McGee, Ernest J. Prisbe, William A. Lee, Kenneth C. Cundy
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Patent number: 6204398Abstract: 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: GrantFiled: April 28, 1999Date of Patent: March 20, 2001Assignee: 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
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Patent number: 6057459Abstract: 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: GrantFiled: October 20, 1998Date of Patent: May 2, 2000Assignee: 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
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Patent number: 5886179Abstract: Nucleotide phosphonate esters characterized by the presence of an ester linked group which is bonded to the phosphorus atom of phosphonate nucleotide analogs are disclosed. The analogs comprise an ester bond that is hydrolyzed in vivo to yield a corresponding phosphonate nucleotide analog. Methods and intermediates for their synthesis and use are described.Type: GrantFiled: December 29, 1995Date of Patent: March 23, 1999Assignee: Gilead Sciences, Inc.Inventors: Murty N. Arimilli, Norbert W. Bischofberger, Robert J. Jones, William A. Lee, Ernest J. Prisbe