Patents by Inventor Bogdan Wilk

Bogdan Wilk 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: 20110178311
    Abstract: Processes are provided for purifying a compound of the structure (I): wherein, A, B, T, Q and R1 are defined herein, and wherein the process includes dissolving the compound of formula I in a solution containing acetone, water and a base at about 30° C.; filtering the solution containing the compound of formula I at about 30° C.; and precipitating the purified compound of formula I by adjusting the filtered solution to an acidic pH. Desirably, the compound of formula I is 5-(2-thioxospiro[cyclohexane-1,3-[3H]indol]-5-yl)-1-methylpyrrole-2-carbonitrile or tanaproget.
    Type: Application
    Filed: April 1, 2011
    Publication date: July 21, 2011
    Applicant: Wyeth LLC
    Inventors: Mahmut Levent, Panolil Raveendranath, Bogdan Wilk, Donald Carl Boop, Marinus Cornelis Hofman
  • Publication number: 20080114165
    Abstract: The present invention provides methods for the preparation of {2-[(8,9)-dioxo-2,6-diaza-bicyclo[5.2.0]-non-1(7)-en-2-yl]ethyl} phosphonic acid, and esters thereof.
    Type: Application
    Filed: January 18, 2008
    Publication date: May 15, 2008
    Applicant: WYETH
    Inventors: Bogdan WILK, Galina VID, Weiguo LIU, Xinxu SHI
  • Publication number: 20080071083
    Abstract: Methods for minimizing the formation of thioamide compounds using decoy agents during reactions, such as thionations of carbonyl compounds containing nitrile groups, and the products thereby are provided.
    Type: Application
    Filed: November 16, 2007
    Publication date: March 20, 2008
    Applicant: Wyeth
    Inventor: Bogdan Wilk
  • 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: 20070213526
    Abstract: Processes are provided for purifying a compound of the structure: wherein, A, B, T, Q and R1 are defined herein, and wherein the process includes dissolving the compound of formula I in a solution containing acetone, water and a base at about 30° C.; filtering the solution containing the compound of formula I at about 30° C.; and precipitating the purified compound of formula I by adjusting the filtered solution to an acidic pH. Desirably, the compound of formula I is 5-(2-thioxospiro[cyclohexane-1,3-[3H]indol]-5-yl)-1-methylpyrrole-2-carbonitrile or tanaproget.
    Type: Application
    Filed: March 5, 2007
    Publication date: September 13, 2007
    Applicant: Wyeth
    Inventors: Mahmut Levent, Panolil Raveendranath, Bogdan Wilk, Donald Carl Boop, Marinus Cornelis Hofman
  • Publication number: 20070027327
    Abstract: Processes for preparing oxindoles, which can be utilized in the preparation of a variety of useful compounds, and methods for minimizing or preventing N-alkylation of amide containing compounds, including oxindoles, are provided.
    Type: Application
    Filed: July 27, 2006
    Publication date: February 1, 2007
    Applicant: Wyeth
    Inventors: Yanzhong Wu, Bogdan Wilk, Zhixian Ding, Xinxu Shi, Charles Wu, Panolil Raveendranath, Haris Durutlic
  • Publication number: 20060247236
    Abstract: Micronized tanaproget, purified tanaproget Form I, and micronized, purified tanaproget Form I are provided. Also provided are compositions containing one or more of the prepared tanaproget forms, methods of using one or more of the prepared tanaproget forms, and kits containing one or more of the prepared tanaproget forms.
    Type: Application
    Filed: April 26, 2006
    Publication date: November 2, 2006
    Applicant: Wyeth
    Inventors: Ramarao Chatlapalli, Arwinder Nagi, John Potoski, Jean Helom, Bogdan Wilk, Arkadiy Rubezhov, Vladimir Dragan
  • Publication number: 20060247442
    Abstract: Methods and kits for preventing or minimizing the formation of isatin oximes during formation of an isatin from an isonitrosoacetanilide are provided. Also provided are methods and kits for preventing or minimizing the formation of isatin oxime impurities after formation of an isatin from an isonitrosoacetanilide by using a decoy agent in the quenching and/or extraction steps. The isatins can be prepared using a decoy agent and desirably a strong acid. Further provided are methods for preparing isatin oximes.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 2, 2006
    Applicant: Wyeth
    Inventors: Bogdan Wilk, Panolil Raveendranath, Zhixian Ding, Peter Wehrenberg
  • Publication number: 20060247441
    Abstract: Methods for preparing oxindole and thio-oxindole compounds are provided, which compounds are useful as precursors to useful pharmaceutical compounds. Specifically provided are methods for preparing 5-pyrrole-3,3-oxindole compounds and 5-(7-fluoro-3,3-dimethyl-2-oxo-2,3-dihydro-1H-indol-5-yl)-1-methyl-1H-pyrrole-2-carbonitrile. Also provided are methods for preparing iminobenzo[b]thiophene and benzo[b]thiophenone compounds.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 2, 2006
    Applicant: Wyeth
    Inventor: Bogdan Wilk
  • Publication number: 20060199954
    Abstract: Purified rapamycin and a chemical process for obtaining the purified rapamycin are described.
    Type: Application
    Filed: February 22, 2006
    Publication date: September 7, 2006
    Applicant: Wyeth
    Inventors: Chia-Cheng Shaw, Warren Chew, Bogdan Wilk
  • Publication number: 20060199253
    Abstract: The invention provides a process for recovering CCI-779 from mother liquors.
    Type: Application
    Filed: February 22, 2006
    Publication date: September 7, 2006
    Applicant: Wyeth
    Inventors: Chia-Cheng Shaw, Warren Chew, Bogdan Wilk, Genevieve Fortier
  • Publication number: 20050272702
    Abstract: A convenient preparation of boron-containing compounds, borate salts, pyrrolecarbonitrile boron-containing compounds, N-substituted-pyrrole-2-carbonitrile boron-containing compounds, and derivatives thereof is provided. The present invention also provides for the use of these boron-containing compounds and derivatives thereof in coupling reactions to provide bi-aryl compounds.
    Type: Application
    Filed: April 25, 2005
    Publication date: December 8, 2005
    Applicant: Wyeth
    Inventors: Bogdan Wilk, Arkadiy Rubezhov, Jean Helom
  • Publication number: 20050250766
    Abstract: Methods for purifying a compound of formula I are provided, wherein A, B X, Q, and R1 are defined herein. The methods include mixing the compound of formula I and a solvent; adding a base to the solvent; and precipitating purified compound of formula I.
    Type: Application
    Filed: April 25, 2005
    Publication date: November 10, 2005
    Applicant: Wyeth
    Inventors: Bogdan Wilk, Arkadiy Rubezhov, Anthony Hadfield, Jean Helom
  • Publication number: 20050239779
    Abstract: Methods for preparing cyclic carbamates and thiocarbamates containing cyanopyrrole moieties and of the formula are provided. Z are the same or different and are H, optionally substituted C1 to C6 alkyl, or CORA; RA is H, optionally substituted C1 to C6 alkyl, optionally substituted C1 to C6 alkoxy, or optionally substituted C1 to C6 aminoalkyl; Q are the same or different and are H, OH, NH2, CN, halogen, optionally substituted C1 to C6 alkyl, optionally substituted C2 to C6 alkenyl, optionally substituted C1 to C6 alkynyl, optionally substituted C1 to C6 alkoxy, optionally substituted C1 to C6 aminoalkyl, or CORB; and RB is H, optionally substituted C1 to C6 alkyl, optionally substituted C1 to C6 alkoxy, or optionally substituted C1 to C6 aminoalkyl.
    Type: Application
    Filed: April 25, 2005
    Publication date: October 27, 2005
    Applicant: Wyeth
    Inventor: Bogdan Wilk
  • Publication number: 20050227971
    Abstract: Thioamide compounds, and specifically, thioamide pyrrole compounds, and preparation thereof are provided. These thioamide compounds can be used as progesterone receptor modulators, in contraception, and in the treatment of progesterone-related maladies.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 13, 2005
    Applicant: Wyeth
    Inventor: Bogdan Wilk
  • Publication number: 20050228179
    Abstract: Methods for minimizing the formation of thioamide compounds using decoy agents during reactions, such as thionations of carbonyl compounds containing nitrite groups, are provided.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 13, 2005
    Applicant: Wyeth
    Inventor: Bogdan Wilk
  • Publication number: 20050228199
    Abstract: Processes for coupling phenol and cycloalkyls including combining an optionally substituted phenol, a cycloalkyl substituted with a leaving group, carbonate salt, tetrahydrofuran, and an optional phase transfer agent are provided. Also provided are processes for preparing 3-cyclopentyloxy-4-methoxybenzaldehyde by combining 3-hydroxy-4-methoxybenzaldehyde, a cyclopentyl compound, a carbonate salt, a solvent, and an optional phase transfer agent.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 13, 2005
    Applicant: Wyeth
    Inventors: Bogdan Wilk, Nalukui Mwisiya, Jean Helom
  • Publication number: 20050222432
    Abstract: The instant invention concerns processes for the production of pyrrole-2-carbonitriles such as 1-methylpyrrole-2-carbonitrile. Such processes preferably comprise the steps of reacting a pyrrole with chlorosulfonyl isocyanate in the presence of a solvent and contacting the resulting product with a molar excess of an amide such as N,N-dimethylformamide. The product of this contacting step is then contacted with a molar excess of an organic base to produce a precipitate and a solution phase. The precipitate is then separated from the solution phase and the corresponding pyrrole-2-carbonitrile is isolated from the resulting solution phase.
    Type: Application
    Filed: March 22, 2005
    Publication date: October 6, 2005
    Applicant: Wyeth
    Inventors: Jean Helom, Arkadiy Rubezhov, Anthony Pilcher, Bogdan Wilk
  • Publication number: 20050137438
    Abstract: The present invention provides methods of coupling carbon-containing compounds using a transition metal or transition metal complex on a solid support. The solid support can include alkaline earth metal salts, including carbonate and sulfate salts. The transition metals can include palladium or nickel metal. The method can include combining two carbon containing compounds and a transition metal or transition metal complex on a solid support in the presence of a solvent, desirably an alcohol.
    Type: Application
    Filed: November 22, 2004
    Publication date: June 23, 2005
    Applicant: Wyeth
    Inventor: Bogdan Wilk
  • Publication number: 20050090470
    Abstract: The present invention provides methods for the preparation of {2-[(8,9)-dioxo-2,6-diaza-bicyclo[5.2.0]-non-1 (7)-en-2-yl]ethyl}phosphonic acid, and esters thereof.
    Type: Application
    Filed: October 20, 2004
    Publication date: April 28, 2005
    Applicant: Wyeth
    Inventors: Bogdan Wilk, Galina Vid, Weiguo Liu, Xinxu Shi