Patents by Inventor Thavalakulamgara K. Sasikumar
Thavalakulamgara K. Sasikumar 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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Patent number: 8664411Abstract: Disclosed are novel gamma secretase inhibitors of the formula. Also disclosed are methods of inhibiting gamma-secretase, methods of treating neurodegenerative diseases, and methods of treating Alzheimer's Disease. Also disclosed are processes for preparing alkenes in one reaction step using a mixture of an aldehyde (or ketone) and an alkyl substituted with two electron withdrawing groups, and reacting the mixture with: (a) a sulfonyl halide (e.g., a sulfonyl chloride) and a basic tertiary amine, or, (b) a sulfonyl anhydride and a basic amine, or (c) an aryl-C(O)-halide and a basic tertiary amine, or (d) an aryl-C(O)—O—C(O)-aryl and a basic tertiary amine, or (e) an heteroaryl-C(O)-halide and a basic tertiary amine, or (f) a heteroaryl-C(O)—O—C(O)-heteroaryl and a basic tertiary amine.Type: GrantFiled: July 1, 2008Date of Patent: March 4, 2014Assignee: Merck Sharp & Dohme Corp.Inventors: Wen-Lian Wu, Thomas A. Bara, Duane A. Burnett, John W. Clader, Martin S. Domalski, Yan Jin, Hubert B. Josien, Hongmei Li, Xian Liang, Dmitri A. Pissarnitski, Thavalakulamgara K. Sasikumar, Jesse K. Wong, Ruo Xu, Zhiqiang Zhao, Paul McNamara
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Benzenesulfonyl-chromane, thiochromane, tetrahydronaphthalene and related gamma secretase inhibitors
Patent number: 8618123Abstract: Disclosed are novel gamma secretase inhibitors of the formula (I): or a pharmaceutically acceptable salt, solvate, or ester thereof, wherein L1, n, X, Ar, Y, Z, Q, and Q1 are as defined herein. Also disclosed are methods for inhibiting gamma secretase, methods for treating Alzheimer's disease, methods of treating one or more neurodegenerative diseases, and methods of inhibiting the deposition of amyloid protein (e.g., amyloid beta protein) in, on or around neurological tissue (e.g., the brain) using the compounds of formula 1.0.Type: GrantFiled: July 15, 2008Date of Patent: December 31, 2013Assignee: Merck Sharp & Dohme Corp.Inventors: Thavalakulamgara K. Sasikumar, Duane A. Burnett, Theodros Asberom, Wen-Lian Wu, Hongmei Li, Ruo Xu, Hubert B. Josien -
Benzenesulfonyl-chromane, thiochromane, tetrahydronaphthalene and related gamma secretase inhibitors
Patent number: 8569521Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substituents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.Type: GrantFiled: October 6, 2011Date of Patent: October 29, 2013Assignee: Merck Sharp & Dohme Corp.Inventors: Theodros Asberom, Thomas A. Bara, Chad E. Bennett, Duane A. Burnett, Mary Anne Caplen, John W. Clader, David J. Cole, Martin S. Domalski, Hubert B. Josien, Chad E. Knutson, Hongmei Li, Mark D. McBriar, Dmitri A. Pissarnitski, Li Qiang, Murali Rajagopalan, Thavalakulamgara K. Sasikumar, Jing Su, Haiqun Tang, Wen-Lian Wu, Ruo Xu, Zhiqiang Zhao -
BENZENESULFONYL-CHROMANE, THIOCHROMANE, TETRAHYDRONAPHTHALENE AND RELATED GAMMA SECRETASE INHIBITORS
Publication number: 20120264736Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substituents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.Type: ApplicationFiled: October 6, 2011Publication date: October 18, 2012Applicant: Schering CorporationInventors: Theodros Asberom, Thomas A. Bara, Chad E. Bennett, Duane A. Burnett, Mary Ann Caplen, John W. Clader, David J. Cole, Martin S. Domalski, Hubert B. Josien, Chad E. Knutson, Hongmei Li, Mark D. McBriar, Dmitri A. Pissarnitski, Li Qiang, Murali Rajagopalan, Thavalakulamgara K. Sasikumar, Jing Su, Haiqun Tang, Wen-Lian Wu, Ruo Xu, Zhiqiang Zhao -
Benzenesulfonyl-chromane, thiochromane, tetrahydronaphthalene and related gamma secretase inhibitors
Patent number: 8067621Abstract: This invention discloses novel gamma secretase inhibitors of the formula: R2 and R3, or R2 and R4, or R3 and R4, together with the atoms to which they are bound, can form a fused cycloalkyl or fused heterocycloalkyl ring. The cycloalkyl ring or the heterocycloalkyl ring can be optionally substituted with one or more substitutents. One or more compounds of formula (I), or formulations comprising such compounds, may be useful, e.g. in treating Alzheimer's Disease.Type: GrantFiled: January 18, 2007Date of Patent: November 29, 2011Assignee: Schering CorporationInventors: Theodros Asberom, Thomas A. Bara, Chad E. Bennett, Duane A. Burnett, Mary Ann Caplen, John W. Clader, David J. Cole, Martin S. Domalski, Hubert B. Josien, Chad E. Knutson, Hongmei Li, Mark D. McBriar, Dmitri A. Pissarnitski, Li Qiang, Murali Rajagopalan, Thavalakulamgara K. Sasikumar, Jing Su, Haiqun Tang, Wen-Lian Wu, Ruo Xu, Zhiqiang Zhao -
Publication number: 20110236400Abstract: Disclosed are novel gamma secretase inhibitors of the formula. Also disclosed are methods of inhibiting gamma-secretase, methods of treating neurodegenerative diseases, and methods of treating Alzheimer's Disease. Also disclosed are processes for preparing alkenes in one reaction step using a mixture of an aldehyde (or ketone) and an alkyl substituted with two electron withdrawing groups, and reacting the mixture with: (a) a sulfonyl halide (e.g., a sulfonyl chloride) and a basic tertiary amine, or, (b) a sulfonyl anhydride and a basic amine, or (c) an aryl-C(O)-halide and a basic tertiary amine, or (d) an aryl-C(O)—O—C(O)-aryl and a basic tertiary amine, or (e) an heteroaryl-C(O)-halide and a basic tertiary amine, or (f) a heteroaryl-C(O)—O—C(O)-heteroaryl and a basic tertiary amine.Type: ApplicationFiled: July 1, 2008Publication date: September 29, 2011Inventors: Wen-Lian Wu, Thomas A. Bara, Duane A. Burnett, John W. Clader, Martin S. Domalski, Yan Jin, Hubert B. Josien, Hongmei Li, Xian Liang, Dmitri A. Pissarnitski, Thavalakulamgara K. Sasikumar, Jesse K. Wong, Ruo Xu, Zhiqiang Zhao, Paul E. McNamara
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Patent number: 7989464Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1-R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.Type: GrantFiled: January 21, 2009Date of Patent: August 2, 2011Assignee: Schering CorporationInventors: Julius J. Matasi, Deen Tulshian, Duane A. Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Domalski
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BENZENESULFONYL-CHROMANE, THIOCHROMANE, TETRAHYDRONAPHTHALENE AND RELATED GAMMA SECRETASE INHIBITORS
Publication number: 20110110948Abstract: Disclosed are novel gamma secretase inhibitors of the formula (I): or a pharmaceutically acceptable salt, solvate, or ester thereof, wherein L1, n, X, Ar, Y, Z, Q, and Q1 are as defined herein. Also disclosed are methods for inhibiting gamma secretase, methods for treating Alzheimer's disease, methods of treating one or more neurodegenerative diseases, and methods of inhibiting the deposition of amyloid protein (e.g., amyloid beta protein) in, on or around neurological tissue (e.g., the brain) using the compounds of formula 1.0.Type: ApplicationFiled: July 15, 2008Publication date: May 12, 2011Applicant: SCHERING CORPORATIONInventors: Thavalakulamgara K. Sasikumar, Duane A. Burnett, Theodros Asberom, Wen-Lian Wu, Hongmei Li, Ruo Xu, Hubert B. Josien -
Patent number: 7598259Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1-R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.Type: GrantFiled: December 13, 2005Date of Patent: October 6, 2009Assignee: Schering CorporationInventors: Julius J Matasi, Deen Tulshian, Duane A Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Domalski
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Publication number: 20090192178Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1-R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.Type: ApplicationFiled: January 21, 2009Publication date: July 30, 2009Inventors: Julius J. Matasi, Deen Tulshian, Duane A. Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Domalski
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Patent number: 7511146Abstract: The present invention discloses compounds of formula I wherein Ar, Y, m, n, R1 and R4 are herein defined, said compounds being novel antagonists for melanin-concentrating hormone (MCH), as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such MCH antagonists as well as methods of using them to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes.Type: GrantFiled: August 26, 2004Date of Patent: March 31, 2009Assignee: Schering CorporationInventors: Duane A. Burnett, Wen-Lian Wu, Thavalakulamgara K. Sasikumar, William J. Greenlee, Mary Ann Caplen, Tao Guo, Rachael Catherine Hunter
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Publication number: 20090082336Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1-R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.Type: ApplicationFiled: November 4, 2008Publication date: March 26, 2009Inventors: Julius J. Matasi, Deen Tulshian, Duane A. Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Donalski
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Patent number: 7504391Abstract: The present invention provides compounds, which, are novel antagonists for D1/D5 receptors as well as methods for preparing such compounds. In another embodiment, the invention provides pharmaceutical compositions comprising such D1/D5 receptor antagonists as well as methods of using them to treat CNS disorders, obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes.Type: GrantFiled: May 20, 2004Date of Patent: March 17, 2009Assignee: Schering CorporationInventors: Duane A. Burnett, William J. Greenlee, Brian McKittrick, Jing Su, Zhaoning Zhu, Thavalakulamgara K. Sasikumar, Robert Mazzola, Li Qiang, Yuanzan Ye
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Patent number: 7498441Abstract: The present invention discloses compounds which are novel antagonists for melanin-concentrating hormone (MCH), as well as methods for preparing such compounds. In other aspects, the invention is directed to pharmaceutical compositions comprising such MCH antagonists as well as methods of using them to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes. Compounds of the invention generally have the structure: where the substituents are as defined herein.Type: GrantFiled: February 26, 2004Date of Patent: March 3, 2009Assignee: Schering CorporationInventors: Thavalakulamgara K. Sasikumar, Wen-Lian Wu, Duane A. Burnett, Li Qiang
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Patent number: 7485648Abstract: In its many embodiments, the present invention provides tricyclic compounds of formula I (wherein J1-J4, X, and R1—R5 are as defined herein) useful as metabotropic glutamate receptor (mGluR) antagonists, particularly as selective metabotropic glutamate receptor 1 antagonists, pharmaceutical compositions containing the compounds, and methods of treatment using the compounds and compositions to treat diseases associated with metabotropic glutamate receptor (e.g., mGluR1) such as, for example, pain, migraine, anxiety, urinary incontinence and neurodegenerative diseases such Alzheimer's disease.Type: GrantFiled: June 14, 2005Date of Patent: February 3, 2009Assignee: Schering CorporationInventors: Julius J. Matasi, Deen Tulshian, Duane A. Burnett, Wen-Lian Wu, Peter Korakas, Lisa S. Silverman, Thavalakulamgara K. Sasikumar, Li Qiang, Martin S. Domalski
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Patent number: 7361769Abstract: The present invention discloses compounds of formula I wherein m, n, p, R1, R2 and X, are herein defined, the compounds being novel antagonists for melanin-concentrating hormone (MCH), as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such MCH antagonists as well as methods of using them to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes.Type: GrantFiled: July 14, 2005Date of Patent: April 22, 2008Assignee: Schering CorporationInventors: Jing Su, Brian A. McKittrick, Haiqun Tang, Thavalakulamgara K. Sasikumar, Li Qiang
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Patent number: 7211574Abstract: The present invention provides compounds, which, are novel antagonists for D1/D5 receptors as well as methods for preparing such compounds. In another embodiment, the invention provides pharmaceutical compositions comprising such D1/D5 receptor antagonists as well as methods of using them to treat CNS disorders, obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes.Type: GrantFiled: August 27, 2003Date of Patent: May 1, 2007Assignee: Schering CorporationInventors: Wen-Lian Wu, Duane A. Burnett, William J. Greenlee, Thavalakulamgara K. Sasikumar
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Patent number: 7109207Abstract: The present invention discloses compounds which, are novel antagonists for melanin-concentrating hormone (MCH), as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such MCH antagonists as well as methods of using them to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes.Type: GrantFiled: June 26, 2003Date of Patent: September 19, 2006Assignee: Schering CorporationInventors: Duane A. Burnett, Wen-Lian Wu, Thavalakulamgara K. Sasikumar, Martin S. Domalski
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Patent number: 7030113Abstract: The present invention discloses compounds of formula I wherein Ar, Z, m, n, p, R1 and R8 are herein defined, said compounds being novel antagonists for melanin-concentrating hormone (MCH), as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such MCH antagonists as well as methods of using them to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes.Type: GrantFiled: September 30, 2004Date of Patent: April 18, 2006Assignee: Schering CorporationInventors: Thavalakulamgara K. Sasikumar, Duane A. Burnett
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Publication number: 20040176355Abstract: The present invention discloses compounds which are novel antagonists for melanin-concentrating hormone (MCH), as well as methods for preparing such compounds. In other aspects, the invention is directed to pharmaceutical compositions comprising such MCH antagonists as well as methods of using them to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes.Type: ApplicationFiled: February 26, 2004Publication date: September 9, 2004Applicant: Schering CorporationInventors: Thavalakulamgara K. Sasikumar, Wen-Lian Wu, Duane A. Burnett, Li Qiang