Patents by Inventor Ashwin M. Krishnan

Ashwin M. Krishnan 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).

  • Processes for the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid and salts thereof
    Patent number: 11674163
    Abstract: The present invention relates to processes and intermediates useful in the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (Ia) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: June 13, 2023
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Kuhlman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • PROCESSES FOR THE PREPARATION OF (R)-2-(7-(4-CYCLOPENTYL-3-(TRIFLUOROMETHYL)BENZYLOXY)-1,2,3,4-TETRAHYDROCYCLOPENTA[B]INDOL-3-YL)ACETIC ACID AND SALTS THEREOF
    Publication number: 20220259627
    Abstract: The present invention relates to processes and intermediates useful in the preparation of of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (Ia) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Application
    Filed: September 14, 2021
    Publication date: August 18, 2022
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Kuhlman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • Processes for the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[B]indol-3-yl)acetic acid and salts thereof
    Patent number: 11149292
    Abstract: The present invention relates to processes and intermediates useful in the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (Ia) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: October 19, 2021
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Kuhlman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • PROCESSES FOR THE PREPARATION OF PYRAZOLE DERIVATIVES USEFUL AS MODULATORS OF THE 5-HT2A SEROTONIN RECEPTOR
    Publication number: 20210101885
    Abstract: The present invention relates to processes for preparing pyrazole derivatives of Formula (I) and salts and pharmaceutical compositions of the salts thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to salts of compounds of Formula (I) and pharmaceutical compositions thereof.
    Type: Application
    Filed: August 19, 2020
    Publication date: April 8, 2021
    Inventors: Ashwin M. KRISHNAN, Tawfik GHARBAOUI
  • Processes for the preparation of pyrazole derivatives useful as modulators of the 5-HT2A serotonin receptor
    Patent number: 10787437
    Abstract: The present invention relates to processes for preparing pyrazole derivatives of Formula (I) and salts and pharmaceutical compositions of the salts thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to salts of compounds of Formula (I) and pharmaceutical compositions thereof.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: September 29, 2020
    Assignee: ARENA PHARMACEUTICALS, INC.
    Inventors: Ashwin M. Krishnan, Tawfik Gharbaoui
  • PROCESSES FOR THE PREPARATION OF PYRAZOLE DERIVATIVES USEFUL AS MODULATORS OF THE 5-HT2A SEROTONIN RECEPTOR
    Publication number: 20190023691
    Abstract: The present invention relates to processes for preparing pyrazole derivatives of Formula (I) and salts and pharmaceutical compositions of the salts thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to salts of compounds of Formula (I) and pharmaceutical compositions thereof.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 24, 2019
    Inventors: Ashwin M. KRISHNAN, Tawfik GHARBAOUI
  • Processes for the preparation of pyrazole derivatives useful as modulators of the 5-HT2A serotonin receptor
    Patent number: 10059691
    Abstract: The present invention relates to processes for preparing pyrazole derivatives of Formula (I) and salts and pharmaceutical compositions of the salts thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to salts of compounds of Formula (I) and pharmaceutical compositions thereof.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: August 28, 2018
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Ashwin M. Krishnan, Tawfik Gharbaoui
  • CRYSTALLINE FORMS AND PROCESSES FOR THE PREPARATION OF PHENYL-PYRAZOLES USEFUL AS MODULATERS OF THE 5-HT2A SEROTONIN RECEPTOR
    Publication number: 20180186748
    Abstract: The present invention relates to processes for preparing phenyl-pyrazoles of Formula (I) and salts and pharmaceutical compositions thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to crystalline forms of 5-HT2A serotonin receptor modulators, compositions thereof and methods of using the same.
    Type: Application
    Filed: September 11, 2017
    Publication date: July 5, 2018
    Inventors: Tawfik Gharbaoui, Dipanjan Sengupta, Ashwin M. Krishnan, Nainesh Shah, Ryan M. Hart, Mark Macias, Edward A. Lally
  • PROCESSES FOR THE PREPARATION OF (R)-2-(7-(4-CYCLOPENTYL-3-(TRIFLUOROMETHYL)BENZYLOXY)-1,2,3,4-TETRAHYDROCYCLOPENTA[B]INDOL-3-YL)ACETIC ACID AND SALTS THEREOF
    Publication number: 20170159088
    Abstract: The present invention relates to processes and intermediates useful in the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (Ia) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Application
    Filed: August 16, 2016
    Publication date: June 8, 2017
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Kuhlman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • PROCESSES FOR THE PREPARATION OF PYRAZOLE DERIVATIVES USEFUL AS MODULATORS OF THE 5-HT2A SEROTONIN RECEPTOR
    Publication number: 20170137408
    Abstract: The present invention relates to processes for preparing pyrazole derivatives of Formula (I) and salts and pharmaceutical compositions of the salts thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to salts of compounds of Formula (I) and pharmaceutical compositions thereof.
    Type: Application
    Filed: January 9, 2017
    Publication date: May 18, 2017
    Inventors: Ashwin M. Krishnan, Tawfik Gharbaoui
  • Processes for the preparation of pyrazole derivatives useful as modulators of the 5-HT2A serotonin receptor
    Patent number: 9556149
    Abstract: The present invention relates to processes for preparing pyrazole derivatives of Formula (I) and salts and pharmaceutical compositions of the salts thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to salts of compounds of Formula (I) and pharmaceutical compositions thereof.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: January 31, 2017
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Ashwin M. Krishnan, Tawfik Gharbaoui
  • Processes for the preparation of (R)-2-(7-4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[B]indol-3-yl)acetic acid and salts thereof
    Patent number: 9447041
    Abstract: The present invention relates to processes and intermediates useful in the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (I) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 20, 2016
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Kuhlman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • PROCESSES FOR THE PREPARATION OF (R)-2-(7-(4-CYCLOPENTYL-3-(TRIFLUOROMETHYL)BENZYLOXY)-1,2,3,4-TETRAHYDROCYCLOPENTA[B]INDOL-3-YL)ACETIC ACID AND SALTS THEREOF
    Publication number: 20160016904
    Abstract: The present invention relates to processes and intermediates useful in the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (I) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Application
    Filed: September 30, 2015
    Publication date: January 21, 2016
    Applicant: ARENA PHARMACEUTICALS, INC.
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Kuhlman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • Crystalline forms and processes for the preparation of phenyl-pyrazoles useful as modulators of the 5-HTserotonin receptor
    Patent number: 9199940
    Abstract: The present invention relates to processes for preparing phenyl-pyrazoles of Formula (I) and salts and pharmaceutical compositions thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to crystalline forms of 5-HT2A serotonin receptor modulators, compositions thereof and methods of using the same.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 1, 2015
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Tawfik Gharbaoui, Dipanjan Sengupta, Ashwin M. Krishnan, Nainesh Shah, Ryan M. Hart, Mark Macias, Edward A. Lally
  • Processes for the preparation of (R)-2-(7-4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[B]indol-3-yl)acetic acid and salts thereof
    Patent number: 9175320
    Abstract: The present invention relates to processes and intermediates useful in the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (Ia) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: November 3, 2015
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Kuhlman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • PROCESSES FOR THE PREPARATION OF PYRAZOLE DERIVATIVES USEFUL AS MODULATORS OF THE 5-HT2A SEROTONIN RECEPTOR
    Publication number: 20150045372
    Abstract: The present invention relates to processes for preparing pyrazole derivatives of Formula (I) and salts and pharmaceutical compositions of the salts thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to salts of compounds of Formula (I) and pharmaceutical compositions thereof.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Inventors: Ashwin M. Krishnan, Tawfik Gharbaoui
  • PROCESSES FOR THE PREPARATION OF (R)-2-(7-(4-CYCLOPENTYL-3-(TRIFLUOROMETHYL)BENZYLOXY)-1,2,3,4-TETRAHYDROCYCLOPENTA[B]INDOL-3-YL)ACETIC ACID AND SALTS THEREOF
    Publication number: 20140357690
    Abstract: The present invention relates to processes and intermediates useful in the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (Ia) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Application
    Filed: August 20, 2014
    Publication date: December 4, 2014
    Applicant: ARENA PHARMACEUTICALS, INC.
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Kuhlman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • Processes for the preparation of ()-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid and salts thereof
    Patent number: 8853419
    Abstract: The present invention relates to processes and intermediates useful in the preparation of (R)-2-(7-(4-cyclopentyl-3-(trifluoromethyl)benzyloxy)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetic acid of Formula (Ia) and salts thereof, an S1P1 receptor modulator that is useful in the treatment of S1P1 receptor-associated disorders, for example, diseases and disorders mediated by lymphocytes, transplant rejection, autoimmune diseases and disorders, inflammatory diseases and disorders (e.g., acute and chronic inflammatory conditions), cancer, and conditions characterized by an underlying defect in vascular integrity or that are associated with angiogenesis such as may be pathologic (e.g., as may occur in inflammation, tumor development and atherosclerosis).
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: October 7, 2014
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Antonio Garrido Montalban, Daniel J. Buzard, John A. DeMattei, Tawfik Gharbaoui, Stephen R. Johannsen, Ashwin M. Krishnan, Young Mi Khulman, You-An Ma, Michael John Martinelli, Suzanne Michiko Sato, Dipanjan Sengupta
  • CRYSTALLINE FORMS AND PROCESSES FOR THE PREPARATION OF PHENYL-PYRAZOLES USEFUL AS MODULATORS OF THE 5-HT2A SEROTONIN RECEPTOR
    Publication number: 20130296321
    Abstract: The present invention relates to processes for preparing phenyl-pyrazoles of Formula (I) and salts and pharmaceutical compositions thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to crystalline forms of 5-HT2A serotonin receptor modulators, compositions thereof and methods of using the same.
    Type: Application
    Filed: July 3, 2013
    Publication date: November 7, 2013
    Inventors: Tawfik Gharbaoui, Dipanjan Sengupta, Ashwin M. Krishnan, Nainesh Shah, Ryan M. Hart, Mark Macias, Edward A. Lally, Jonathan Duffield
  • Crystalline forms and processes for the preparation of phenyl-pyrazoles useful as modulators of the 5-HTserotonin receptor
    Patent number: 8481535
    Abstract: The present invention relates to processes for preparing phenyl-pyrazoles of Formula (I) and salts and pharmaceutical compositions thereof, useful as modulators of 5-HT2A serotonin receptor activity. The present invention also relates to intermediates used in the processes, and their preparation. The present invention also relates to crystalline forms of 5-HT2A serotonin receptor modulators, compositions thereof and methods of using the same.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: July 9, 2013
    Assignee: Arena Pharmaceuticals, Inc.
    Inventors: Tawfik Gharbaoui, Dipanjan Sengupta, Ashwin M. Krishnan, Nainesh Shah, Ryan M. Hart, Mark Macias, Edward A. Lally, Jonathan Duffield