Patents by Inventor Abhijit Roychowdhury
Abhijit Roychowdhury 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: 20190031665Abstract: Present invention relates to novel heterocyclic compounds as indoleamine 2,3-dioxygenase (IDO) and/or tryptophan 2,3-dioxygenase (TDO) modulators. Compounds of the present invention inhibit tryptophan degradation by modulating IDO and/or TDO. The invention further relates to the process of their preparation, pharmaceutical composition and their use in modulating the activity of indoleamine 2,3-dioxygenase (IDO) and/or tryptophan 2,3-dioxygenase (TDO). The compounds of the invention can be used alone or in combination for the treatment of conditions that benefits from the inhibition of tryptophan degradation.Type: ApplicationFiled: January 31, 2017Publication date: January 31, 2019Applicant: Emcure Pharmaceuticals LimitedInventors: Mukund Keshav GURJAR, Abhijit ROYCHOWDHURY, Tushar Pandurang KHALADKAR, Sangmeshwar Prabhakar SAWARGAVE, Ravindra Ashok JANRAO, Vijay Keshav KALHAPURE, Ganesh Devidas URUNKAR, Srinivas GULLAPALLI, Jayanarayan KULATHINGAL, Rammohan Reddy LEKKALA
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Publication number: 20160354430Abstract: This invention relates to a method of treatment of cancer comprising administering compound of Formula (1) or derivatives or pharmaceutically acceptable salts thereof.Type: ApplicationFiled: August 18, 2016Publication date: December 8, 2016Applicant: PIRAMAL ENTERPRISES LIMITEDInventors: Prabhu Dutt Mishra, Sreekumar Sankaranarayanan Eyyammadichiyl, Saji David GEORGE, Shailendra SONAWANE, Narayan Subhash CHAKOR, Abhijit ROYCHOWDHURY, Rajiv SHARMA
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Patent number: 9475842Abstract: This invention relates to an isolated compound of Formula (1) or derivatives or pharmaceutically acceptable salts thereof. The invention also includes all isomeric and tautomeric forms of the compound of Formula (1) or the derivatives thereof. The present invention further relates to processes for the production of the compound of Formula (1) by fermentation of the fungal strain of Actinomycetes (PM0895172/MTCC 684), pharmaceutical compositions comprising the compound of Formula (1) as the active ingredient; and use of the compounds or composition containing them in the treatment of cancer.Type: GrantFiled: May 6, 2013Date of Patent: October 25, 2016Assignee: Piramal Enterprises LimitedInventors: Prabhu Dutt Mishra, Sreekumar Sankaranarayanan Eyyammadichiyl, Saji David George, Shailendra Sonawane, Narayan Subhash Chakor, Abhijit Roychowdhury, Rajiv Sharma
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Patent number: 9433621Abstract: The present invention provides compounds of Formula (I): and tautomers, isomers, and esters of said compounds, and pharmaceutically acceptable salts, solvates, and prodrugs of said compounds, wherein each of R, R1, X, Y, Z, R2, R3, R4, R5, R6, R7, R8, R9, R18, R19 and n is selected independently and as defined herein. Compositions comprising such compounds are also provided. The compounds of the invention are effective as inhibitors of HCV, and are useful, alone and together with other therapeutic agents, in treating or preventing diseases or disorders such as viral infections and virus-related disorders.Type: GrantFiled: February 18, 2011Date of Patent: September 6, 2016Assignees: Merck Sharp & Dohme Corp., Southern Research InstituteInventors: Ashok Arasappan, F. George Njoroge, Cecil D. Kwong, Subramaniam Ananthan, Frank Bennett, Francisco Velazquez, Vinay M. Girijavallabhan, Yuhua Huang, Hollis S. Kezar, III, Joseph A. Maddry, Robert C. Reynolds, Abhijit Roychowdhury, Anita T. Fowler, John A. Secrist, III, Joseph A. Kozlowski, Bandarpalle B. Shankar, Ling Tong, Seong Heon Kim, Malcolm MacCoss, Srikanth Venkatraman, Vishal Verma
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Publication number: 20150119394Abstract: The present invention relates to compounds that are capable of inhibiting, modulating and/or regulating Insulin-Like-Growth Factor I Receptor and Insulin Receptor. The compounds of the instant invention possess a core structure that comprises a sulfonyl indole moiety. The present invention is also related to the pharmaceutically acceptable salts, hydrates and stereoisomers of these compounds.Type: ApplicationFiled: March 14, 2013Publication date: April 30, 2015Inventors: Abhijit Roychowdhury, Rajiv Sharma, Malcolm Mascarenhas, Chandrika B-Rao, Shashikant M. Patil, Sambhaji Chavan, Nitin Lad, Smriti Khanna, Christopher J. Dinsmore
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Publication number: 20150080312Abstract: This invention relates to an isolated, compound of Formula (1) or derivatives or pharmaceutically acceptable salts thereof. The invention also includes all isomeric and tautomeric forms of the compound of Formula (1) or the derivatives thereof. The present invention further relates to processes for the production of the compound of Formula (1) by fermentation of the fungal strain of Actinomycetes (PM0895172/MTCC 684), pharmaceutical compositions comprising the compound of Formula (1) as the active ingredient; and use of the compounds or composition containing them in the treatment of cancer.Type: ApplicationFiled: May 6, 2013Publication date: March 19, 2015Applicant: PIRAMAL ENTERPRISES LIMITEDInventors: Prabhu Dutt Mishra, Sreekumar Sankaranarayanan Eyyammadichiyl, Saji David George, Shailendra Sonawane, Narayan Subhash Chakor, Abhijit Roychowdhury, Rajiv Sharma
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Publication number: 20140242027Abstract: The present invention provides compounds of Formula (I): and tautomers, isomers, and esters of said compounds, and pharmaceutically acceptable salts, solvates, and prodrugs of said compounds, wherein each of R, R1, X, Y, Z, R2, R3, R4, R5, R6, R7, R8, R9, R18, R19 and n is selected independently and as defined herein. Compositions comprising such compounds are also provided. The compounds of the invention are effective as inhibitors of HCV, and are useful, alone and together with other therapeutic agents, in treating or preventing diseases or disorders such as viral infections and virus-related disorders.Type: ApplicationFiled: February 18, 2011Publication date: August 28, 2014Applicants: Southern Research Institute, Merck Sharp & Dohne Corp.Inventors: Ashok Arasappan, F. George Njoroge, Cecil D. Kwong, Subramaniam Ananthan, Frank Bennett, Francisco Velazquez, Vinay Girijavallabhan, Yuhua Huang, Hollis S. Kezer, Joseph Maddry, Robert C. REynold, Abhijit Roychowdhury, Anita T. Fowler, John A. Secrist, III, Ling Tong, Seong Heon Kim, Malcolm MacCoss, Srikanth Venkatraman, vishal Verma
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Patent number: 8715638Abstract: The present invention provides compounds of Formula (A): (Chemical formula should be inserted here as it appears on abstract in paper form) (A) and tautomers, isomers, and esters of said compounds, and pharmaceutically acceptable salts, solvates, and prodrugs of said compounds, wherein wherein each of R, R1, X, Y, Z, R2, R3, R4, R5, R6, R7, R8, R9, R18, R19, R22, R23, and n is selected independently and as defined herein. Compositions comprising such compounds are also provided. The compounds of the invention are effective as inhibitors of HCV, and are useful, alone and together with other therapeutic agents, in treating or preventing diseases or disorders such as viral infections and virus-related disorders.Type: GrantFiled: August 19, 2009Date of Patent: May 6, 2014Assignees: Merck Sharp & Dohme Corp., Southern Research InstituteInventors: Cecil D. Kwong, F. George Njoroge, Subramaniam Ananthan, Jeremy Clark, Feng Geng, Hollis S. Kezar, III, Joseph A. Maddry, John J. Piwinski, Robert C. Reynolds, Abhijit Roychowdhury, John A. Secrist, III, Neng-Yang Shih
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Patent number: 8697694Abstract: The present invention provides compounds of Formula (I): and tautomers, isomers, and esters of said compounds, and pharmaceutically acceptable salts, solvates, and prodrugs of said compounds, wherein each of R, R1, X, Y, Z, R2, R3, R4, R5, R6, R7, R8, R9, R18, R19 and n is selected independently and as defined herein. Compositions comprising such compounds are also provided. The compounds of the invention are effective as inhibitors of HCV, and are useful, alone and together with other therapeutic agents, in treating or preventing diseases or disorders such as viral infections and virus-related disorders.Type: GrantFiled: August 19, 2009Date of Patent: April 15, 2014Assignees: Merck Sharp & Dohme Corp., Southern Research InstituteInventors: Ashok Arasappan, F. George Njoroge, Cecil D. Kwong, Subramaniam Ananthan, Frank Bennett, Jeremy Clark, Hollis S. Kezar, III, Vinay M. Girijavallabhan, Yuhua Huang, Regina Huelgas, Joseph A. Maddry, John J. Piwinski, Robert C. Reynolds, Abhijit Roychowdhury, Anita T. Fowler, Feng Geng, John A. Secrist, III, Neng-Yang Shih, Vishal Verma, Francisco Velazquez, Srikanth Venkatraman
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Publication number: 20140046059Abstract: The present invention relates to a process for the preparation of the compounds of formula (I) which are morpholino sulphonyl indole derivatives. The compounds of formula (I) are capable of inhibiting, modulating or regulating Insulin-Like-Growth Factor I Receptors or Insulin Receptors. The present invention also relates to the processes for preparation of the pharmaceutically acceptable salts of the compounds of formula (I).Type: ApplicationFiled: April 19, 2012Publication date: February 13, 2014Applicant: PIRAMAL ENTERPRISES LIMITEDInventors: Malcolm Mascarenhas, Shashikant Patil, Ravindra Ashok Janrao, Abhijit Roychowdhury
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Publication number: 20140045832Abstract: The present invention relates to compounds that are capable of inhibiting, modulating and/or regulating Insulin-Like-Growth Factor I Receptor and Insulin Receptor. The compounds of the instant invention possess a core structure that comprises a sulfonyl indole moiety. The present invention is also related to the pharmaceutically acceptable salts, hydrates and stereoisomers of these compounds.Type: ApplicationFiled: April 19, 2012Publication date: February 13, 2014Applicants: PIRAMAL ENTERPRISES LIMITED, MERCK SHARP & DOHME CORP.Inventors: Sarala Balachandran, Christopher J. Dinsmore, Abhijit Roychowdhury, Rajiv Sharma, Ram Asrey Vishwakarma
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Patent number: 8541434Abstract: The present invention provides compounds of Formula (I): and tautomers, isomers, and esters of said compounds, and pharmaceutically acceptable salts, solvates, and pro-drugs of said compounds, wherein each of R, R1, X, Y, Z, R2, R3, R4, R5, R6, R7, R8, R9, R18, R19 and n is selected independently and as defined herein. Compositions comprising such compounds are also provided. The compounds of the invention are effective as inhibitors of HCV, and are useful, alone and together with other therapeutic agents, in treating or preventing diseases or disorders such as viral infections and virus-related disorders.Type: GrantFiled: August 19, 2009Date of Patent: September 24, 2013Assignees: Merck Sharp & Dohme Corp., Southern Research InstituteInventors: Cecil D. Kwong, F. George Njoroge, Subramaniam Ananthan, Ashok Arasappan, Frank Bennett, Jeremy Clark, Anita T. Fowler, Feng Geng, Hollis S. Kezar, III, Joseph A. Maddry, John J. Piwinski, Robert C. Reynolds, Abhijit Roychowdhury, John A. Secrist, III, Neng-Yang Shih
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Publication number: 20120107271Abstract: The present invention provides compounds of Formula (I): (Chemical formula should be inserted here as it appears on abstract in paper form) (I) and tautomers, isomers, and esters of said compounds, and pharmaceutically acceptable salts, solvates, and pro-drugs of said compounds, wherein each of R, R1, X, Y, Z, R2, R3, R4, R5, R6, R7, R8, R9, R18, R19 and n is selected independently and as defined herein. Compositions comprising such compounds are also provided. The compounds of the invention are effective as inhibitors of HCV, and are useful, alone and together with other therapeutic agents, in treating or preventing diseases or disorders such as viral infections and virus-related disorders.Type: ApplicationFiled: August 19, 2009Publication date: May 3, 2012Inventors: Cecil D. Kwong, F. George Njoroge, Subramaniam Ananthan, Ashok Arasappan, Frank Bennett, Jeremy Clark, Anita T. Fowler, Feng Geng, Hollis S. Kezar, III, Joseph A. Maddry, John J. Piwinski, Robert C. Reynolds, Abhijit Roychowdhury, John A. Secrist, III, Neng-Yang Shih
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Publication number: 20110318305Abstract: The present invention provides compounds of Formula (I): and tautomers, isomers, and esters of said compounds, and pharmaceutically acceptable salts, solvates, and prodrugs of said compounds, wherein each of R, R1, X, Y, Z, R2, R3, R4, R5, R6, R7, R8, R9, R18, R19 and n is selected independently and as defined herein. Compositions comprising such compounds are also provided. The compounds of the invention are effective as inhibitors of HCV, and are useful, alone and together with other therapeutic agents, in treating or preventing diseases or disorders such as viral infections and virus-related disorders.Type: ApplicationFiled: August 19, 2009Publication date: December 29, 2011Inventors: Ashok Arasappan, F. George Njoroge, Cecil D. Kwong, Subramaniam Ananthan, Frank Bennett, Jeremy Clark, Hollis S. Kezar, III, Vinay M. Girijavallabhan, Yuhua Huang, Regina Huelgas, Joseph A. Maddry, John J. Piwinski, Robert C. Reynolds, Abhijit Roychowdhury, Anita T. Fowler, Feng Geng, John A. Secrist, III, Neng-Yang Shih, Vishal Verma, Francisco Velazquez, Srikanth Venkatraman
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Publication number: 20110286965Abstract: The present invention provides compounds of Formula (A): (Chemical formula should be inserted here as it appears on abstract in paper form) (A) and tautomers, isomers, and esters of said compounds, and pharmaceutically acceptable salts, solvates, and prodrugs of said compounds, wherein wherein each of R, R1, X, Y, Z, R2, R3, R4, R5, R6, R7, R8, R9, R18, R19, R22, R23, and n is selected independently and as defined herein. Compositions comprising such compounds are also provided. The compounds of the invention are effective as inhibitors of HCV, and are useful, alone and together with other therapeutic agents, in treating or preventing diseases or disorders such as viral infections and virus-related disorders.Type: ApplicationFiled: August 19, 2009Publication date: November 24, 2011Inventors: Cecil D. Kwong, F. George Njoroge, Subramaniam Ananthan, Jeremy Clark, Feng Geng, Hollis S. Kezar, III, Joseph A. Maddry, John J. Piwinski, Robert C. Reynolds, Abhijit Roychowdhury, John A. Secrist, III, Neng-Yang Shih