Patents by Inventor David J. Kucera

David J. Kucera 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).

  • HIV protease inhibitors, compositions containing the same, their pharmaceutical uses and materials for their synthesis
    Patent number: 7179918
    Abstract: Compounds of the formula: where the formula variables are as defined herein, are disclosed that advantageously inhibit or block the biological activity of the HIV protease. These compounds, as well as pharmaceutical compositions containing these compounds, are useful for treating patients or hosts infected with the HIV virus. Intermediates and synthetic methods for preparing such compounds are also described.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: February 20, 2007
    Assignee: Agouron Pharmaceuticals, Inc.
    Inventors: Stacie S. Canan Koch, Therese N. Alexander, Benjamin J. Burke, Tanya M. Jewell, David J. Kucera, Maria Angelica Linton, Lennert J. Mitchell, Jr., Siegfried H. Reich, Donald J. Skalitzky, John H. Tatlock, Michael D. Varney, Scott C. Virgil, Stephen E. Webber, Stephen T. Worland, Mark Barvian, Gary Bolton, Frederick Earl Boyer, Jr., Jeffrey J. Machak, Tod Holler, Sean T. Murphy, Michael Melnick, Vara Prasad Josyula
  • ?-Lactams, methods for the preparation of taxanes, and sidechain-bearing taxanes
    Patent number: 7176326
    Abstract: Novel ?-lactams finding utility as intermediates in the preparation of sidechain-bearing taxanes such as taxol and taxol derivatives. The present invention also relates to novel methods of coupling ?-lactams to form such sidechain-bearing taxanes, and to novel sidechain-bearing taxanes.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: February 13, 2007
    Assignee: Bristol-Myers Squibb Company
    Inventors: John K. Thottathil, Ivan D. Trifunovich, David J. Kucera, Wen-Sen Li
  • Process for preparing the antiviral agent [1S-(1alpha,3 alpha,4beta )]-2-amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one
    Patent number: 7034152
    Abstract: Processes are disclosed for preparing the antiviral agent entecavir. A resin adsorption process for the isolation and purification of entecavir is also disclosed. Various intermediates useful in the preparation of entecavir are also disclosed.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: April 25, 2006
    Assignee: Bristol-Myers Squibb Company
    Inventors: Yadagiri R. Pendri, Chung-Pin H. Chen, Sunil S. Patel, Jeffrey M. Evans, Jing Liang, David R. Kronenthal, Gerald L. Powers, Siva Josyula Prasad, Jeffrey T. Bien, Zhongping Shi, Ramesh N. Patel, Amit Banerjee, Yeung Yu Chan, Sushil K. Rijhwani, Ambarish K. Singh, Shaopeng Wang, Milan Stojanovic, David J. Kucera, Richard P. Polniaszek, Charles Lewis, John Thottathil, Dhileepkumar Krishnamurty, Maotang X. Zhou, Purushotham Vemishetti
  • HIV protease inhibitors, compositions containing the same, their pharmaceutical uses and materials for their synthesis
    Patent number: 6953858
    Abstract: Compounds of the formula: where the formula variables are as defined herein, are disclosed that advantageously inhibit or block the biological activity of the HIV protease. These compounds, as well as pharmaceutical compositions containing these compounds, are useful for treating patients or hosts infected with the HIV virus. Intermediates and synthetic methods for preparing such compounds are also described.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: October 11, 2005
    Assignee: Agouron Pharmaceuticals, Inc.
    Inventors: Stacie S. Canan Koch, Therese N. Alexander, Mark Barvian, Gary Bolton, Frederick Earl Boyer, Jr., Benjamin J. Burke, Tod Holler, Tanya M. Jewell, Vara Prasad Josyula, David J. Kucera, Maria Angelica Linton, Jeffrey J. Machak, Lennert J. Mitchell, Jr., Sean T. Murphy, Siegfried H. Reich, Donald J. Skalitzky, John H. Tatlock, Michael D. Varney, Scott C. Virgil, Stephen E. Webber, Stephen T. Worland, Michael Melnick
  • Process for preparing the antiviral agent [1S-(1alpha,3 alpha,4beta)]-2-amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one
    Publication number: 20040192912
    Abstract: Processes are disclosed for preparing the antiviral agent entecavir. A resin adsorption process for the isolation and purification of entecavir is also disclosed. Various intermediates useful in the preparation of entecavir are also disclosed.
    Type: Application
    Filed: December 11, 2003
    Publication date: September 30, 2004
    Inventors: Yadagiri R. Pendri, Chung-Pin H. Chen, Sunil S. Patel, Jeffrey M. Evans, Jing Liang, David R. Kronenthal, Gerald L. Powers, Siva Josyula Prasad, Jeffrey T. Bien, Zhongping Shi, Ramesh N. Patel, Amit Banerjee, Yeung Yu Chan, Sushil K. Rijhwani, Ambarish K. Singh, Shaopeng Wang, Milan Stojanovic, David J. Kucera, Richard P. Polniaszek, Charles Lewis, John Thottathil, Dhileepkumar Krishnamurty, Maotang X. Zhou, Purushotham Vemishetti
  • HIV protease inhibitors, compositions containing the same, their pharmaceutical uses and materials for their synthesis
    Publication number: 20030225071
    Abstract: Compounds of the formula: 1
    Type: Application
    Filed: June 11, 2002
    Publication date: December 4, 2003
    Inventors: Stacie S. Canan Koch, Therese N. Alexander, Mark Barvian, Gary Bolton, Fredrick E. Boyer, Benjamin J. Burke, Tod Holler, Tanya M. Jewell, Vara Prasad Josyula, David J. Kucera, Maria A. Linton, Jeffrey J. Machak, Lennert J. Mitchell, Sean T. Murphy, Siegfried H. Reich, Donald J. Skalitzky, John H. Tatlock, Michael D. Varney, Scott C. Virgil, Stephen E. Webber, Stephen T. Worland, Michael Melnick
  • HIV protease inhibitors, compositions containing the same, their pharmaceutical uses and materials for their synthesis
    Publication number: 20030153507
    Abstract: Compounds of the formula: 1
    Type: Application
    Filed: June 11, 2002
    Publication date: August 14, 2003
    Inventors: Stacie S. Canan-Koch, Therese N. Alexander, Mark Barvian, Gary Bolton, Frederick E. Boyer, Benjamin J. Burke, Tod Holler, Tanya M. Jewell, Vara Prasad Josyula, David J. Kucera, Maria A. Linton, Jeffrey J. Machak, Lennert J. Mitchell, Sean T. Murphy, Siegfried H. Reich, Donald J. Skalitzky, John H. Tatlock, Michael D. Varney, Scott C. Virgil, Stephen E. Webber, Stephen T. Worland, Michael Melnick
  • Method for the preparation of novel sidechain-bearing taxanes and intermediates thereof
    Patent number: 6515151
    Abstract: Methods for the preparation of sidechain-bearing taxanes, comprising the preparation of an oxazoline compound, coupling the oxazoline compound with a taxane having a hydroxyl group directly bonded at C-13 thereof to form an oxazoline sidechain-bearing taxane, and opening the oxazoline ring of the oxazoline sidechain-bearing taxane so formed. Compounds prepared by the methods of the present invention are also disclosed.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: February 4, 2003
    Assignee: Bristol-Myers Squibb Company
    Inventors: Michael A. Poss, Jerome L. Moniot, Ivan D. Trifunovich, David J. Kucera, John K. Thottahil, Shu-Hui Chen, Jianmei Wei
  • Novel beta-lactams, methods for the preparation of taxanes, and sidechain-bearing taxanes
    Publication number: 20020137927
    Abstract: Novel &bgr;-lactams finding utility as intermediates in the preparation of sidechain-bearing taxanes such as taxol and taxol derivatives. The present invention also relates to novel methods of coupling &bgr;-lactams to form such sidechain-bearing taxanes, and to novel sidechain-bearing taxanes.
    Type: Application
    Filed: December 5, 2001
    Publication date: September 26, 2002
    Inventors: John K. Thottathil, Ivan D. Trifunovich, David J. Kucera, Wen-Sen Li
  • &bgr;-lactams, methods for the preparation of taxanes, and sidechain-bearing taxanes
    Patent number: 6350886
    Abstract: Novel &bgr;-lactams finding utility as intermediates in the preparation of sidechain-bearing taxanes such as taxol and taxol derivatives. The present invention also relates to novel methods of coupling &bgr;-lactams to form such sidechain-bearing taxanes, and to novel sidechain-bearing taxanes.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: February 26, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: John K. Thottathil, Ivan D. Trifunovich, David J. Kucera, Wen-Sen Li
  • &bgr;-lactams, methods for the preparation of taxanes, and sidechain-bearing taxanes
    Patent number: 6350887
    Abstract: Novel &bgr;-lactams finding utility as intermediates in the preparation of sidechain-bearing taxanes such as taxol and taxol derivatives. The present invention also relates to novel methods of coupling &bgr;-lactams to form such sidechain-bearing taxanes, and to novel sidechain-bearing taxanes.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: February 26, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: John K. Thottathil, Ivan D. Trifunovich, David J. Kucera, Wen-Sen Li
  • &bgr;-lactams, methods for the preparation of taxanes, and sidechain-bearing taxanes
    Patent number: 6310201
    Abstract: Novel &bgr;-lactams finding utility as intermediates in the preparation of sidechain-bearing taxes such as tall and tall derivatives. The present invention also relates to novel methods of coupling &bgr;-lactams to form such sidechain-bearing taxes, and to novel sidechain-bearing taxes.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: October 30, 2001
    Assignee: Bristol-Myers Squibb Company
    Inventors: John K. Thottathil, Ivan D. Trifunovich, David J. Kucera, Wen-Sen Li
  • Methods for the preparation of novel sidechain-bearing taxanes and intermediates
    Patent number: 6090951
    Abstract: Novel methods for the preparation of sidechain-bearing taxanes, comprising the preparation of an oxazoline compound, coupling the oxazoline compound with a taxane having a hydroxyl group directly bonded at C-13 thereof to form an oxazoline sidechain-bearing taxane, and opening the oxazoline ring of the oxazoline sidechain-bearing taxane so formed. Novel compounds prepared by the methods of the present invention are also provided.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: July 18, 2000
    Inventors: Michael A. Poss, Jerome L. Moniot, Ivan D. Trifunovich, David J. Kucera, John K. Thottahil, Shu-Hui Chen, Jianmei Wei
  • Methods for the preparation of novel sidechain-bearing taxanes
    Patent number: 5973160
    Abstract: Novel methods for the preparation of sidechain-bearing taxanes, comprising the preparation of an oxazoline compound, coupling the oxazoline compound with a taxane having a hydroxyl group directly bonded at C-13 thereof to form an oxazoline sidechain-bearing taxane, and opening the oxazoline ring of the oxazoline sidechain-bearing taxane so formed. Novel compounds prepared by the methods of the present invention are also provided.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: October 26, 1999
    Inventors: Michael A. Poss, Jerome L. Moniot, Ivan D. Trifunovich, David J. Kucera, John K. Thottahil, Shu-Hui Chen, Jianmei Wei
  • Phosphorus bearing taxanes intermediates
    Patent number: 5808102
    Abstract: Novel methods for the preparation of sidechain-bearing taxanes, comprising the preparation of an oxazoline compound, coupling the oxazoline compound with a taxane having a hydroxyl group directly bonded at C-13 thereof to form an oxazoline sidechain-bearing taxane, and opening the oxazoline ring of the oxazoline sidechain-bearing taxane so formed. Novel compounds prepared by the methods of the present invention are also provided.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: September 15, 1998
    Assignee: Bristol-Myers Squibb Company
    Inventors: Michael A. Poss, Jerome L. Moniot, Ivan D. Trifunovich, David J. Kucera, John K. Thottahil, Shu-Hui Chen, Jianmei Wei