Patents by Inventor Mikhail Chafeev

Mikhail Chafeev 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: 20110251224
    Abstract: This invention is directed to spiro-oxindole compounds of formula (I): wherein k, j, Q, R1, R2a, R2b, R2c, R2d, R3a, R3b, R3c, and R3d are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, which are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain. Pharmaceutical compositions comprising the compounds and methods of preparing and using the compounds are also disclosed.
    Type: Application
    Filed: April 1, 2011
    Publication date: October 13, 2011
    Inventors: Mikhail Chafeev, Nagasree Chakka, Sultan Chowdhury, Robert Fraser, Jianmin Fu, Duanjie Hou, Tom Hsieh, Rajender Kamboj, Shifeng Liu, Vandna Ralna, Mehran Seid Bagherzadeh, Jianyu Sun, Shaoyi Sun, Serguei Sviridov
  • Publication number: 20110237567
    Abstract: This invention is directed to tricyclic spiro-oxindole derivatives of formula (I), wherein j, k, m, n, w, q, Y, Q, X, R1, R2 and R3 are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, which are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain. Pharmaceutical compositions comprising the compounds and methods of preparing and using the compounds are also disclosed.
    Type: Application
    Filed: October 12, 2007
    Publication date: September 29, 2011
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Sultan Chowdhury, Jianmin Fu, Ranjender Kamboj
  • Publication number: 20110237783
    Abstract: Pharmaceutical compositions and compounds are provided. The compounds of the invention demonstrate anti-proliferative activity, and may promote apoptosis in cells lacking normal regulation of cell cycle and death. In one embodiment of the invention, pharmaceutical compositions of the compounds in combination with a physiologically acceptable carrier are provided. The pharmaceutical compositions are useful in the treatment of hyperproliferative disorders, which disorders include tumor growth, lymphoproliferative diseases, angiogenesis. The compounds of the invention are substituted pyrazoles and pyrazolines.
    Type: Application
    Filed: December 23, 2010
    Publication date: September 29, 2011
    Applicant: Valocor Therapeutics, Inc.
    Inventors: Zaihui Zhang, Timothy S. Daynard, Mikhail A. Chafeev, Shisen Wang, Gregory B. Chopiuk, Serguei V. Sviridov
  • Publication number: 20110172282
    Abstract: This invention is directed to methods of using spiro-oxindole compounds of formula (I): wherein k, j, Q, R1, R2a, R2b, R2c, R2d, R3a, R3b, R3c, and R3d are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, for the treatment and/or prevention of hypercholesterolemia, benign prostatic hyperplasia, pruritis and cancer.
    Type: Application
    Filed: October 12, 2007
    Publication date: July 14, 2011
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Sultan Chowdhury, Robert Fraser, Jianmin Fu, Rajender Kamboj, Duanjie Hou, Shifeng Liu, Mehran Seid Bagherzadeh, Serguei Sviridov, Shaoyi Sun, Jianyu Sun, Nagasree Chakka, Tom Hsieh, Vandna Raina
  • Publication number: 20110112162
    Abstract: This invention is directed to spiro-oxindole compounds, as stereoisomers, enantiomers, tautomers thereof or mixtures thereof; or pharmaceutically acceptable salts, solvates or prodrugs thereof, for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain.
    Type: Application
    Filed: October 13, 2009
    Publication date: May 12, 2011
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Sultan Chowdhury, Lauren Fraser, Jianmin Fu, Jonathan Langille, Shifeng Liu, Jianyu Sun, Shaoyi Sun, Serguei Sviridov, Mark Wood, Alla Zenova
  • Publication number: 20110087027
    Abstract: This invention is directed to methods of preparing certain spiro-oxindole derivatives, which are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 14, 2011
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Jean-Jacques Cadieux, Mikhail Chafeev, Sultan Chowdhury, Jianmin Fu, Qi Jia, Stefanie Abel, Emad El-Sayed, Elke Huthmann, Thomas Isarno
  • Patent number: 7919484
    Abstract: This invention is directed to the use of SCD-1 inhibitors of the formula (I): where x, y, V, W, G, J, L, M, R2, R3, R5, R5a, R6, R6a, R7, R7a, R8 and R8a are defined herein, in combination with other drug therapies to treat adverse weight gain.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: April 5, 2011
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Rajender Kamboj, Michael D. Winther, Robert Fraser, Mikhail Chafeev, Sultan Chowdhury, Jian-Min Fu, Duanjie Hou, Shifeng Liu, Vandna Raina, Mehran Seid Bagherzadeh, Serguei Sviridov, Kashinath Sadalapure, Shaoyi Sun, Vishnumurthy Kodumuru, Nagasree Chakka, Zaihui Zhang, Melwyn Abreo, Mikhail A. Kondratenko, Daniel F. Harvey, Cindy J. Hudson, Wenbao Li, Chi Tu, Sengen Sun, Mark W. Holladay, Heinz W. Gschwend
  • Publication number: 20110034500
    Abstract: This invention is directed to spiroheterocyclic compounds of formula (I): wherein k, j, p, Q, R1, R3a, R3b, R3e, and R3d are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, that are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain. Pharmaceutical compositions comprising the compounds and methods of using the compounds are also disclosed.
    Type: Application
    Filed: August 12, 2010
    Publication date: February 10, 2011
    Applicant: Xenon Pharmaceuticals Inc.
    Inventors: Mikhail Chafeev, Sultan Chowdhury, Robert Fraser, Jianmin Fu, Rajender Kamboj, Shifeng Liu, Mehran Seid Bagherzadeh, Jianyu Sun, Serguei Sviridov
  • Patent number: 7875728
    Abstract: Pharmaceutical compositions and compounds are provided. The compounds of the invention demonstrate anti-proliferative activity, and may promote apoptosis in cells lacking normal regulation of cell cycle and death. In one embodiment of the invention, pharmaceutical compositions of the compounds in combination with a physiologically acceptable carrier are provided. The pharmaceutical compositions are useful in the treatment of hyperproliferative disorders, which disorders include tumor growth, lymphoproliferative diseases, angiogenesis. The compounds of the invention are substituted pyrazoles and pyrazolines.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: January 25, 2011
    Assignee: Valocor Therapeutics, Inc.
    Inventors: Zaihui Zhang, Timothy S Daynard, Mikhail A Chafeev, Shisen Wang, Gregory B Chopiuk, Serguei V Sviridov
  • Publication number: 20100331386
    Abstract: This invention is directed to the (S)-enantiomer of the compound of formula (I): or a pharmaceutically acceptable solvate or prodrug thereof. This (S)-enantiomer is useful for the treatment of diseases or conditions, such as pain, which are ameliorated or alleviated by the modulation of voltage-gated sodium channels.
    Type: Application
    Filed: June 28, 2010
    Publication date: December 30, 2010
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Jianmin Fu, Jean-Jacques Cadieux
  • Publication number: 20100240713
    Abstract: This invention is directed to compounds of formula (I), wherein m, formula (II), R1, R2 and R3 are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, for the treatment of iron disorders. This invention is also directed to pharmaceutical compositions comprising the compounds and methods of using the compounds to treat iron disorders.
    Type: Application
    Filed: June 5, 2008
    Publication date: September 23, 2010
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Jean-Jacques Cadieux, Mikhail Chafeev, Julia Fonarev, Jianmin Fu, Rajender Kamboj, Vishnumurthy Kodumuru, Serguei Sviridov, Zaihui Zhang
  • Patent number: 7799798
    Abstract: This invention is directed to spiroheterocyclic compounds of formula (I) wherein k, j, p, Q, R1, R3a, R3b, R3c, and R3d are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, that are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain. Pharmaceutical compositions comprising the compounds and methods of using the compounds are also disclosed.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: September 21, 2010
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Mikhail Chafeev, Sultan Chowdhury, Robert Fraser, Jianmin Fu, Rajender Kamboj, Shifeng Liu, Mehran Seid Bagherzadeh, Jianyu Sun, Serguei Sviridov
  • Patent number: 7754711
    Abstract: Methods of treating an SCD-mediated disease or condition in a mammal, preferably a human, are disclosed, wherein the methods comprise administering to a mammal in need thereof a compound of formula (Ia): where x, y, W, V, R2, R3, R4, R5, R6, R6a, R7, R7a, R8, R8a, R9 and R9a are defined herein. Pharmaceutical compositions comprising the compounds of formula (I) are also disclosed.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: July 13, 2010
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Nagasree Chakka, Mikhail Chafeev, Sultan Chowdhury, Jian-Min Fu, Duanjie Hou, Rajender Kamboj, Vishnumurthy Kodumuru, Shifeng Liu, Vandna Raina, Shaoyi Sun, Serguei Sviridov, Michael D. Winther, Zaihui Zhang, Melwyn Abreo, Mark W. Holladay, Wenbao Li, Sengen Sun, Chi Tu, Heinz W. Gschwend
  • Publication number: 20100173967
    Abstract: This invention is directed to methods of using spiro-oxindole compounds of formula (I): wherein k, j, Q, R1, R2a, R2b, R2c, R2d, R3a, R3b, R3c, and R3d are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, for the treatment and/or prevention of hypercholesterolemia, benign prostatic hyperplasia, pruritis and cancer.
    Type: Application
    Filed: October 12, 2007
    Publication date: July 8, 2010
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Sultan Chowdhury, Robert Fraser, Jianmin Fu, Rajender Kamboj, Duanjie Hou, Shifeng Liu, Mehran Seid Bagherzadeh, Serguei Sviridov, Shaoyi Sun, Jianyu Sun, Nagasree Chakka, Tom Hsieh, Vandna Raina
  • Publication number: 20100160291
    Abstract: This invention is directed to tricyclic spiro-oxindole derivatives of formula (I), wherein j, k, m, n, w, q, Y, Q, X, R1, R2 and R3 are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, which are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain. Pharmaceutical compositions comprising the compounds and methods of preparing and using the compounds are also disclosed.
    Type: Application
    Filed: October 12, 2007
    Publication date: June 24, 2010
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Sultan Chowdhury, Jianmin Fu, Ranjender Kamboj
  • Publication number: 20100137299
    Abstract: This invention is directed to spiro-oxindole compounds, as stereoisomers, enantiomers, tautomers thereof or mixtures thereof; or pharmaceutically acceptable salts, solvates or prodrugs thereof, for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain.
    Type: Application
    Filed: October 13, 2009
    Publication date: June 3, 2010
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Sultan Chowdhury, Lauren Fraser, Jianmin Fu, Jonathan Langille, Shifeng Liu, Jianyu Sun, Shaoyi Sun, Serguei Sviridov, Mark Wood, Alla Zenova, Qi Jia, Jean-Jacques Cadieux, Simon J. Gauthier, Amy Frances Douglas, Tom Hsieh, Nagasree Chakka, Zoran Cikojevic
  • Publication number: 20100130487
    Abstract: This invention is directed to spiro-oxindole compounds of formula (I): wherein k, j, Q, R1, R2a, R2b, R2c, R2d, R3a, R3b, R3c, and R3d are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, which are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain. Pharmaceutical compositions comprising the compounds and methods of preparing and using the compounds are also disclosed.
    Type: Application
    Filed: December 30, 2009
    Publication date: May 27, 2010
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Nagasree Chakka, Sultan Chowdhury, Robert Fraser, Jianmin Fu, Duanjie Hou, Tom Hsieh, Rajender Kamboj, Shifeng Liu, Vandna Raina, Mehran Seid Bagherzadeh, Jianyu Sun, Shaoyi Sun, Serguei Sviridov
  • Publication number: 20100125072
    Abstract: This invention is directed to spiro-oxindole compounds of formula (I): wherein k, j, Q, R1, R2a, R2b, R2c, R2d, R3a, R3b, R3c, and R3d are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, which are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain. Pharmaceutical compositions comprising the compounds and methods of preparing and using the compounds are also disclosed.
    Type: Application
    Filed: December 30, 2009
    Publication date: May 20, 2010
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Nagasree Chakka, Sultan Chowdhury, Robert Fraser, Jianmin Fu, Duanjie Hou, Tom Hsieh, Rajender Kamboj, Shifeng Liu, Vandna Raina, Mehran Seid Bagherzadeh, Jianyu Sun, Shaoyi Sun, Serguei Sviridov
  • Publication number: 20100099728
    Abstract: This invention is directed to spiro-oxindole compounds, as stereoisomers, enantiomers, tautomers thereof or mixtures thereof; or pharmaceutically acceptable salts, solvates or prodrugs thereof, for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain.
    Type: Application
    Filed: October 13, 2009
    Publication date: April 22, 2010
    Applicant: XENON PHARMACEUTICALS INC.
    Inventors: Mikhail Chafeev, Sultan Chowdhury, Lauren Fraser, Jianmin Fu, Jonathan Langille, Shifeng Liu, Jianyu Sun, Shaoyi Sun, Serguei Sviridov, Mark Wood, Alla Zenova
  • Patent number: 7700641
    Abstract: This invention is directed to spiro-oxindole compounds of formula (I): wherein k, j, Q, R1, R2a, R2b, R2c, R2d, R3a, R3b, R3c, and R3d are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, which are useful for the treatment and/or prevention of sodium channel-mediated diseases or conditions, such as pain. Pharmaceutical compositions comprising the compounds and methods of preparing and using the compounds are also disclosed.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: April 20, 2010
    Assignee: Xenon Pharmaceuticals Inc.
    Inventors: Mikhail Chafeev, Nagasree Chakka, Sultan Chowdhury, Robert Fraser, Jianmin Fu, Duanjie Hou, Tom Hsieh, Rajender Kamboj, Shifeng Liu, Vandna Raina, Mehran Seid Bagherzadeh, Jianyu Sun, Shaoyi Sun, Serguei Sviridov