Patents by Inventor Takushi Kaneko

Takushi Kaneko 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).

  • Antibacterial agents
    Publication number: 20050288273
    Abstract: Compounds of formula I and methods for their preparation are disclosed. Further disclosed are methods of making biologically active compounds of formula I as well as pharmaceutically acceptable compositions comprising compounds of formula I. Compounds of formula I as disclosed herein can be used in a variety of applications including use as antibacterial agents.
    Type: Application
    Filed: February 6, 2004
    Publication date: December 29, 2005
    Inventors: Frederick Boyer, Allison Choy, Louis Chupak, Susan Hagen, Joysula Venkata Prasad, Takushi Kaneko, Ji-Young Kim
  • Antibacterial agents
    Publication number: 20050277630
    Abstract: Compounds of formula I and methods for their preparation are disclosed. Further disclosed are methods of making biologically active compounds of formula I as well as pharmaceutically acceptable compositions comprising compounds of formula I. Compounds of formula I as disclosed herein can be used in a variety of applications including use as antibacterial agents.
    Type: Application
    Filed: February 6, 2004
    Publication date: December 15, 2005
    Inventors: Louis Chupak, Wenhua Jiao, Vera Prasad Josyula, Takushi Kaneko
  • Hygromycin A derivatives
    Patent number: 6867230
    Abstract: This invention relates to compounds of the formula and to pharmaceutically acceptable salts, prodrugs and solvates thereof, wherein R1, R2, R3 and R10 are as defined herein. The compounds of formula 1 are antibacterial and antiprotozoal agents that may be used to treat various bacterial and protozoal infections and disorders related to such infections. The invention also relates to pharmaceutical compositions containing the compounds of formula 1, methods of treating bacterial and protozoal infections by administering the compounds of formula 1.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: March 15, 2005
    Assignee: Pfizer, Inc.
    Inventors: Matthew Merrill Hayward, Michael S. Visser, Robert G. Linde, II, Takushi Kaneko
  • Novel macrolide antibiotics
    Publication number: 20050004047
    Abstract: This invention relates to compounds of the formula wherein a, R1, R2, R3, R4, R5, R6 and X are each as defined above, and to pharmaceutically acceptable salts thereof, useful as potent antibacterial and antiprotozoal agents that may be used to treat various bacterial and protozoal infections and disorders related to such infections. The invention also relates to pharmaceutical compositions containing the compounds of formula I and to methods of treating bacterial and protozoal infections by administering the compounds of formula I.
    Type: Application
    Filed: July 21, 2004
    Publication date: January 6, 2005
    Inventor: Takushi Kaneko
  • Macrolide antibiotics
    Patent number: 6835716
    Abstract: This invention relates to compounds of the formula wherein a, R1, R2, R3, R4, R5, R6 and X are each as defined above, and to pharmaceutically acceptable salts thereof, useful as potent antibacterial and antiprotozoal agents that may be used to treat various bacterial and protozoal infections and disorders related to such infections. The invention also relates to pharmaceutical compositions containing the compounds of formula I and to methods of treating bacterial and protozoal infections by administering the compounds of formula I.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: December 28, 2004
    Assignee: Pfizer, Inc.
    Inventor: Takushi Kaneko
  • Ketolide antibiotics
    Patent number: 6833444
    Abstract: This invention relates to compounds of the formula 1: and to pharmaceutically acceptable salts and solvates thereof wherein X1, X2, R2, R8, R9, R10 and R11 are as defined herein. The compounds of formula 1 are antibacterial and antiprotozoal agents that may be used to treat various bacterial and protozoal infections and disorders related to such infections. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating bacterial and protozoal infections by administering the compounds of formula 1.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: December 21, 2004
    Assignee: Pfizer, Inc.
    Inventors: William T. McMillen, Takushi Kaneko
  • Antibacterial agents
    Publication number: 20040224939
    Abstract: Compounds of formula I and methods for their preparation are disclosed. Further disclosed are methods of making biologically active compounds of formula I as well as pharmaceutically acceptable compositions comprising compounds of formula I. Compounds of formula I as disclosed herein can be used in a variety of applications including use as antibacterial agents.
    Type: Application
    Filed: February 5, 2004
    Publication date: November 11, 2004
    Inventors: Louis S. Chupak, Frederick Earl Boyer, Susan Hagen, Takushi Kaneko, Manjinder Lall, Martin Pettersson, Joysula Venkata Nagendra Vara Prasad
  • Macrolide antibiotics
    Patent number: 6809080
    Abstract: This invention relates to compounds of the formula and to pharmaceutically acceptable salts, prodrugs, and solvates thereof wherein X, Y, R1, R2, R3, R4, and R6 are as defined herein. The compounds of formula I are antibacterial and antiprotozoal agents that may be used to treat various bacterial and protozoal infections and disorders related to such infections. The invention also relates to pharmaceutical compositions containing the compounds of formula I, methods of making the compounds, and to methods of treating bacterial and protozoal infections by administering the compounds.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: October 26, 2004
    Assignee: Pfizer, Inc.
    Inventors: Takushi Kaneko, William Thomas McMillen
  • 4"-substituted-9-deoxo-9A-AZA-9A-homoerythromycin a derivatives
    Publication number: 20040180842
    Abstract: The invention relates to a method of preparing compounds of the formula 1
    Type: Application
    Filed: March 26, 2004
    Publication date: September 16, 2004
    Applicant: Pfizer Inc
    Inventors: Brian Scott Bronk, Michael Anthony Letavic, Takushi Kaneko, Bingwei Vera Yang, Edward Alan Glazer, Hengmiao Cheng
  • 13-methyl erythromycin derivatives
    Patent number: 6777543
    Abstract: The invention relates to compounds of the formula and to pharmaceutically acceptable salts, prodrugs and solvates thereof, wherein R1, R2, R3, R4, R5, R17, Rf, A, X, and Y are as defined herein. The invention also relates to pharmaceutical compositions containing the compounds of formulas 1, methods of using the compounds of formula 1 in the treatment of infections and methods of preparing the compounds of formula 1.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: August 17, 2004
    Assignee: Pfizer, Inc.
    Inventors: Yong-Jin Wu, Wei-Guo Su, Takushi Kaneko, Hamish McArthur
  • 4?-substituted-9-deoxo-9a-aza-9a homoerythromycin a derivative
    Patent number: 6777393
    Abstract: The invention relates to a method of preparing compounds of the formula and to pharmaceutically acceptable salts thereof. The compounds of formula 1 are antibacterial agents that may be used to treat various bacterial and protozoa infections. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating bacterial protozoa infections by administering the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1 and to intermediates useful in such preparation.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: August 17, 2004
    Assignee: Pfizer Inc.
    Inventors: Brian Scott Bronk, Michael Anthony Letavic, Takushi Kaneko, Bingwei Vera Yang, Edward Alan Glazer, Hengmiao Cheng
  • 4''-Substituted-9-deoxo-9a-aza-9a homoerythromycin a derivative
    Publication number: 20040023896
    Abstract: The invention relates to a method of preparing compounds of the formula 1
    Type: Application
    Filed: October 18, 2002
    Publication date: February 5, 2004
    Applicant: Pfizer Inc.
    Inventors: Brian Scott Bronk, Michael Anthony Letavic, Takushi Kaneko, Bingwei Vera Yang, Edward Alan Glazer, Hengmiao Cheng
  • Carbamate and carbazate ketolide antibiotics
    Patent number: 6664238
    Abstract: This invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts and solvates thereof wherein X1, X2, R2, R15, R16 and R6 are as defined herein. The compounds of formula 1 are antibacterial and antiprotozoal agents that may be used to treat various bacterial and protozoal infections and disorders related to such infections. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating bacterial and protozoal infections by administering the compounds of formula 1.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: December 16, 2003
    Assignee: Pfizer Inc.
    Inventors: Wei-Guo Su, Takushi Kaneko, Yong-Jin Wu
  • 13-Methyl erythromycin derivatives
    Publication number: 20030229031
    Abstract: The invention relates to compounds of the formula 1
    Type: Application
    Filed: May 19, 2003
    Publication date: December 11, 2003
    Applicant: Pfizer Inc.
    Inventors: Yong-Jin Wu, Wei-Guo Su, Takushi Kaneko, Hamish McArthur
  • C-4?-substituted macrolide derivatives
    Patent number: 6576749
    Abstract: Compounds are of the formula: and to pharmaceutically acceptable salts thereof. The compounds of formula 1 are potent antibacterial agents that can be used to treat various bacterial infections and disorders related to such infections. The invention also relates to pharmaceutical compositions including the compounds of formula 1 and to methods of treating bacterial infections by administering the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1 and to intermediates useful in such preparation.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: June 10, 2003
    Assignee: Pfizer Inc.
    Inventors: Brian Scott Bronk, Takushi Kaneko, Michael Anthony Letavic, Hengmaio Cheng, Edward Alan Glazer, Bingwei Vera Yang
  • Erythromycin a derivatives
    Publication number: 20030100742
    Abstract: The present invention relates to compounds of the formula 1
    Type: Application
    Filed: November 20, 2002
    Publication date: May 29, 2003
    Applicant: Pfizer Inc.
    Inventors: Takushi Kaneko, William Thomas McMillen, Yong-Jin Wu
  • 13-Methyl erythromycin derivatives
    Publication number: 20030100518
    Abstract: The invention relates to compounds of the formula 1
    Type: Application
    Filed: May 24, 2000
    Publication date: May 29, 2003
    Inventors: Yong-Jin Wu, Wei-Guo Su, Takushi Kaneko, Hamish Mcarthur
  • Hygromycin derivatives
    Patent number: 6562792
    Abstract: The present invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts, prodrugs and solvates thereof, wherein X, Y, V, W1, W2, Z1 and Z2 are as defined herein. The invention also relates to pharmaceutical compositions containing the above compounds and to methods of treating bacterial and protozoal infections in mammals by administering the above compounds.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: May 13, 2003
    Assignee: Pfizer Inc.
    Inventors: Katherine E. Brighty, Robert G. Linde, Takushi Kaneko, Matthew M. Hayward
  • Ketolide antibiotics
    Patent number: 6555524
    Abstract: This invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts, prodrugs, and solvates thereof wherein X1, R1, R2, R8, R9 and R10 are as defined herein. The compounds of formula 1 are antibacterial and antiprotozoal agents that may be used to treat various bacterial and protozoal infections and disorders related to such infections. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating bacterial and protozoal infections by administering the compounds of formula 1.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: April 29, 2003
    Assignee: Pfizer Inc.
    Inventors: Takushi Kaneko, William Thomas McMillen, Wei-Guo Su, Hongjuan Zhao
  • 4-oxo-2-ureido-1,4,5,6-tetrahydro-pyrimidine derivatives
    Publication number: 20030055053
    Abstract: The present invention relates to compounds of the formula 1 1
    Type: Application
    Filed: June 5, 2002
    Publication date: March 20, 2003
    Inventors: Robert G. Linde, Matthew Merrill Hayward, Takushi Kaneko