Patents by Inventor Antonia Nikitenko

Antonia Nikitenko 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: 20090023930
    Abstract: Methods for preparing compound of formula (I) are described, wherein R1-R3 are defined herein, as are methods for preparing the intermediates formed therein. Also described are methods for enantioselectively preparing a chiral compound of the following structure, wherein R2 and R3 are defined herein.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 22, 2009
    Applicant: Wyeth
    Inventors: Asaf Alimardanov, Antonia Nikitenko, Gregg Feigelson, John Potoski
  • Publication number: 20090023903
    Abstract: A novel trifluoroacetylating agent, i.e., N-trifluoroacetylmorpholine, is described. This reagent is useful in the preparation of phenyl and heterocyclic sulfonamide compounds. Methods are therefore described for preparing sulfonamide compounds of the following structure, wherein R1 and R2 are defined herein, using N-trifluoroacetylmorpholine. The sulfonamide compounds that may be prepared as described herein include 5-chloro-thiophene-2-sulfonic acid [(1S,2R)-2-(3,5-difluoro-phenyl)-3,3,3-trifluoro-1-hydroxymethyl-propyl]-amide using N-trifluoroacetylmorpholine.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 22, 2009
    Applicant: Wyeth
    Inventors: Terrence Joseph Connolly, Anita Wai-Yin Chan, Zhixian Ding, Mousumi Ghosh, Xinxu Shi, Jianxin Ren, Eric Hansen, Roger Farr, Michael MacEwan, Asaf Alimardanov, Antonia Nikitenko, John Potoski
  • Publication number: 20080146645
    Abstract: Processes are disclosed for preparing indolinone phenylaminopropanol derivatives, particularly chiral indolinone phenylaminopropanol derivatives of the general formula: The processes disclosed may be used to prepare, inter alia, 7-fluoro-1-[(1S, 2R)-1-(3-fluorophenyl)-2-hydroxy-3-(methylamino)propyl]-3,3-dimethyl-1,3-dihydro-2H-indol-2-one and 7-fluoro-1-[(1S, 2R)-1-(3,5-difluorophenyl)-2-hydroxy-3-(methylamino)propyl]-3,3-dimethyl-1,3-dihydro-2H-indol-2-one. Intermediates of the processes are also disclosed.
    Type: Application
    Filed: August 22, 2007
    Publication date: June 19, 2008
    Applicant: Wyeth
    Inventors: Anita Wai-Yin Chan, Zhixian Ding, Mousumi Ghosh, Mahmut Levent, Panolil Raveendranath, Jianxin Ren, Maotang Zhou, Asaf Alimardanov, Alexander V. Gontcharov, Antonia A. Nikitenko, John R. Potoski, Girija Raveendranath, Vijay Raveendranath, Sanjay Raveendranath
  • Publication number: 20080081910
    Abstract: The present invention provides cycloalkylfused indole, benzothiophene, benzofuran, and indene derivatives, and methods for using them to, for example, treat, prevent and/or ameliorate central nervous system diseases by antagonizing 5-HT1A receptors and modulating serotonin levels.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 3, 2008
    Applicant: Wyeth
    Inventors: Annmarie Sabb, Robert Vogel, Gary Stack, Deborah Evrard, Amedeo Failli, Lalitha Krishnan, Anita Chan, Jianxin Ren, Charles Guinosso, Reinhardt Baudy, Jean Sze, Yanfang Li, Charles Stanton, Antonia Nikitenko
  • Publication number: 20080039639
    Abstract: Methods of preparing compounds of formula I or pharmaceutically acceptable salts thereof are provided: wherein each of R1, R2, R3, R4, x, m, n, and Ar are as defined, and described in classes and subclasses herein, which are agonists or partial agonists of the 2C subtype of brain serotonin receptors. The compounds, and compositions containing the compounds, can be used to treat a variety of central nervous system disorders such as schizophrenia.
    Type: Application
    Filed: April 18, 2007
    Publication date: February 14, 2008
    Applicant: Wyeth
    Inventors: Alexander Gontcharov, Antonia Nikitenko, Panolil Raveendranath, Chia-Cheng Shaw, Bogdan Wilk, Dahui Zhou
  • Publication number: 20080009634
    Abstract: There is provided a process for the preparation of bicyclicheteroaryl carboxaldehydes having the structural Formula I where X and Y are defined in the specification The bicyclic heteroaryl carboxaldehydes are useful as intermediates in the preparation of ?-lactamase inhibitors.
    Type: Application
    Filed: June 18, 2007
    Publication date: January 10, 2008
    Applicant: Wyeth Holdings Corporation
    Inventors: Michael Winkley, Anita Chan, Ivo Jirkovsky, Kenneth Kremer, Joseph Zeldis, Antonia Nikitenko, Henry Strong, Tarek Mansour, Gulnaz Khafizova, Aranapakam Venkatesan
  • Patent number: 7297704
    Abstract: The present invention provides cycloalkylfused indole, benzothiophene, benzofuran, and indene derivatives, and methods for using them to, for example, treat, prevent and/or ameliorate central nervous system diseases by antagonizing 5-HT1A receptors and modulating serotonin levels.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: November 20, 2007
    Assignee: Wyeth
    Inventors: Annmarie Louise Sabb, Robert Lewis Vogel, Gary Paul Stack, Deborah Ann Evrard, Amedeo Arturo Failli, Lalitha Krishnan, Anita Wai-Yin Chan, Jianxin Ren, Charles J. Guinosso, Reinhardt Bernhard Baudy, Jean Yi-ching Sze, Yanfang Li, Charles John Stanton, III, Antonia Nikitenko
  • Publication number: 20070129377
    Abstract: Processes are disclosed for preparing substituted aryl cycloalkanol derivatives, particularly chiral substituted aryl cycloalkanol derivatives of the general formula:
    Type: Application
    Filed: December 4, 2006
    Publication date: June 7, 2007
    Applicant: Wyeth
    Inventors: Alexander Gontcharov, Antonia Nikitenko, Jean Schmid, John Potoski
  • Publication number: 20060205759
    Abstract: The present invention provides cycloalkylfused indole, benzothiophene, benzofuran, and indene derivatives, and methods for using them to, for example, treat, prevent and/or ameliorate central nervous system diseases by antagonizing 5-HT1A receptors and modulating serotonin levels.
    Type: Application
    Filed: February 16, 2006
    Publication date: September 14, 2006
    Applicant: Wyeth
    Inventors: Annmarie Sabb, Robert Vogel, Gary Stack, Deborah Evrard, Amedeo Failli, Lalitha Krishnan, Anita Chan, Jianxin Ren, Charles Guinosso, Reinhardt Baudy, Jean Sze, Yanfang Li, Charles Stanton, Antonia Nikitenko
  • Patent number: 6960686
    Abstract: The present invention provides a new process and intermediates for the production of antiviral compound 4?,4-bis-{4,6-bis-[3-(bis-carbamoyl-methyl-1-sulfamoyl)-phenylamino]-[1,3,5]triazin-2-ylamino}-biphenyl-2,2?-disulfonic acid and its pharmaceutically acceptable salts.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: November 1, 2005
    Assignee: Wyeth
    Inventors: Silvio Iera, Christopher A. Demerson, Jacqueline F. Lunetta, Maria Papamichelakis, Michael F. MacEwan, Wayne G. McMahon, John R. Potoski, Arthur G. Mohan, Antonia Nikitenko