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).
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Publication number: 20110178311Abstract: 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: ApplicationFiled: April 1, 2011Publication date: July 21, 2011Applicant: Wyeth LLCInventors: Mahmut Levent, Panolil Raveendranath, Bogdan Wilk, Donald Carl Boop, Marinus Cornelis Hofman
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Publication number: 20080114165Abstract: 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: ApplicationFiled: January 18, 2008Publication date: May 15, 2008Applicant: WYETHInventors: Bogdan WILK, Galina VID, Weiguo LIU, Xinxu SHI
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Publication number: 20080071083Abstract: 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: ApplicationFiled: November 16, 2007Publication date: March 20, 2008Applicant: WyethInventor: Bogdan Wilk
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Publication number: 20080039639Abstract: 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: ApplicationFiled: April 18, 2007Publication date: February 14, 2008Applicant: WyethInventors: Alexander Gontcharov, Antonia Nikitenko, Panolil Raveendranath, Chia-Cheng Shaw, Bogdan Wilk, Dahui Zhou
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Publication number: 20070213526Abstract: 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: ApplicationFiled: March 5, 2007Publication date: September 13, 2007Applicant: WyethInventors: Mahmut Levent, Panolil Raveendranath, Bogdan Wilk, Donald Carl Boop, Marinus Cornelis Hofman
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Publication number: 20070027327Abstract: 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: ApplicationFiled: July 27, 2006Publication date: February 1, 2007Applicant: WyethInventors: Yanzhong Wu, Bogdan Wilk, Zhixian Ding, Xinxu Shi, Charles Wu, Panolil Raveendranath, Haris Durutlic
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Publication number: 20060247236Abstract: 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: ApplicationFiled: April 26, 2006Publication date: November 2, 2006Applicant: WyethInventors: Ramarao Chatlapalli, Arwinder Nagi, John Potoski, Jean Helom, Bogdan Wilk, Arkadiy Rubezhov, Vladimir Dragan
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Publication number: 20060247442Abstract: 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: ApplicationFiled: April 27, 2006Publication date: November 2, 2006Applicant: WyethInventors: Bogdan Wilk, Panolil Raveendranath, Zhixian Ding, Peter Wehrenberg
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Publication number: 20060247441Abstract: 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: ApplicationFiled: April 27, 2006Publication date: November 2, 2006Applicant: WyethInventor: Bogdan Wilk
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Publication number: 20060199954Abstract: Purified rapamycin and a chemical process for obtaining the purified rapamycin are described.Type: ApplicationFiled: February 22, 2006Publication date: September 7, 2006Applicant: WyethInventors: Chia-Cheng Shaw, Warren Chew, Bogdan Wilk
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Publication number: 20060199253Abstract: The invention provides a process for recovering CCI-779 from mother liquors.Type: ApplicationFiled: February 22, 2006Publication date: September 7, 2006Applicant: WyethInventors: Chia-Cheng Shaw, Warren Chew, Bogdan Wilk, Genevieve Fortier
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Publication number: 20050272702Abstract: 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: ApplicationFiled: April 25, 2005Publication date: December 8, 2005Applicant: WyethInventors: Bogdan Wilk, Arkadiy Rubezhov, Jean Helom
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Publication number: 20050250766Abstract: 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: ApplicationFiled: April 25, 2005Publication date: November 10, 2005Applicant: WyethInventors: Bogdan Wilk, Arkadiy Rubezhov, Anthony Hadfield, Jean Helom
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Publication number: 20050239779Abstract: 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: ApplicationFiled: April 25, 2005Publication date: October 27, 2005Applicant: WyethInventor: Bogdan Wilk
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Publication number: 20050227971Abstract: 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: ApplicationFiled: April 7, 2005Publication date: October 13, 2005Applicant: WyethInventor: Bogdan Wilk
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Publication number: 20050228179Abstract: 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: ApplicationFiled: April 7, 2005Publication date: October 13, 2005Applicant: WyethInventor: Bogdan Wilk
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Publication number: 20050228199Abstract: 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: ApplicationFiled: April 7, 2005Publication date: October 13, 2005Applicant: WyethInventors: Bogdan Wilk, Nalukui Mwisiya, Jean Helom
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Publication number: 20050222432Abstract: 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: ApplicationFiled: March 22, 2005Publication date: October 6, 2005Applicant: WyethInventors: Jean Helom, Arkadiy Rubezhov, Anthony Pilcher, Bogdan Wilk
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Publication number: 20050137438Abstract: 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: ApplicationFiled: November 22, 2004Publication date: June 23, 2005Applicant: WyethInventor: Bogdan Wilk
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Publication number: 20050090470Abstract: 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: ApplicationFiled: October 20, 2004Publication date: April 28, 2005Applicant: WyethInventors: Bogdan Wilk, Galina Vid, Weiguo Liu, Xinxu Shi