Patents by Inventor Chakrapani Subramanyam

Chakrapani Subramanyam 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).

  • Patent number: 9751877
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: September 5, 2017
    Assignee: PFIZER INC.
    Inventors: Martin Youngjin Pettersson, Douglas Scott Johnson, Chakrapani Subramanyam, Christopher John O'Donnell, Christopher William am Ende, Michael Eric Green, Nandini Chaturbhai Patel, Cory Michael Stiff, Tuan Phong Tran, Gregory Wayne Kauffman, Antonia Friederike Stepan, Patrick Robert Verhoest
  • Patent number: 9688698
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: June 27, 2017
    Assignee: PFIZER INC.
    Inventors: David Lawrence Firman Gray, Lei Zhang, Jennifer Elizabeth Davoren, Amy Beth Dounay, Ivan Viktorovich Efremov, Scot Richard Mente, Chakrapani Subramanyam
  • Publication number: 20170165270
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof and N-oxides thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds (N-oxides thereof or or pharmaceutically acceptable salts of the compound or the N-oxides) and the uses of such compounds (N-oxides thereof or or pharmaceutically acceptable salts of the compound or the N-oxides) for the treatment of D1-mediated (or D1-associated) disorders including cognitive and motivational impairments and negative symptoms associated with illnesses such as schizophrenia, depression, bipolar disorder, Parkinson's disease, Mild cognitive impairment (MCI), Alzheimer's disease, lupus, Huntington's disease, Parkinson's, dyskinesia, ADHD, post-traumatic stress disorder, autism spectrum disorder, treatment-resistant depression, major depressive disorder (MDD), drug dependence, Tourette's syndrome, tardive dyskinesias as well as impairments asso
    Type: Application
    Filed: March 1, 2017
    Publication date: June 15, 2017
    Applicant: PFIZER INC.
    Inventors: JOTHAM WADSWORTH COE, JOHN ARTHUR ALLEN, JENNIFER ELIZABETH DAVOREN, AMY BETH DOUNAY, IVAN VIKTOROVICH EFREMOV, DAVID LAWRENCE FIRMAN GRAY, EDWARD RAYMOND GUILMETTE, ANTHONY RICHARD HARRIS, CHRIS JOHN HELAL, JACLYN LOUISE HENDERSON, SCOT RICHARD MENTE, DEANE MILFORD NASON, STEVEN VICTOR O'NEIL, CHAKRAPANI SUBRAMANYAM, WENJIAN XU
  • Patent number: 9617275
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof and N-oxides thereof; processes and intermediates for preparation of; and compositions and uses thereof. The present invention further provides D1 agonists with reduced D1R desensitization, D1 agonists with a reduced ?-arrestin recruitment activity relative to Dopamine, D1 agonists interacting significantly with the Ser188 but not significantly with the Ser202 of a D1R when binding to the D1R, D1 agonists interacting less strongly with the Asp103 and interacting less strongly with the Ser198 of a D1R when binding to the D1R, and their uses.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 11, 2017
    Assignee: Pfizer Inc.
    Inventors: Jotham Wadsworth Coe, John Arthur Allen, Jennifer Elizabeth Davoren, Amy Beth Dounay, Ivan Viktorovich Efremov, David Lawrence Firman Gray, Edward Raymond Guilmette, Anthony Richard Harris, Chris John Helal, Jaclyn Louise Henderson, Scot Richard Mente, Deane Milford Nason, Steven Victor O'Neil, Chakrapani Subramanyam, Wenjian Xu
  • Publication number: 20170037053
    Abstract: The present invention provides, in part, compounds of Formula (I) and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Application
    Filed: April 13, 2015
    Publication date: February 9, 2017
    Applicant: PFIZER INC.
    Inventors: DAVID LAWRENCE FIRMAN GRAY, LEI ZHANG, JENNIFER ELIZABETH DAVOREN, AMY BETH DOUNAY, IVAN VIKTOROVICH EFREMOV, CHEWAH LEE, SCOT RICHARD MENTE, STEVEN VICTOR O'NEIL, BRUCE NELSEN ROGERS, CHAKRAPANI SUBRAMANYAM
  • Publication number: 20170037049
    Abstract: The present invention provides, in part, compounds of Formula (I): and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Application
    Filed: April 15, 2015
    Publication date: February 9, 2017
    Applicant: PFIZER INC.
    Inventors: DAVID LAWRENCE FIRMAN GRAY, JENNIFER ELIZABETH DAVOREN, AMY BETH DOUNAY, IVAN VIKTOROVICH EFREMOV, SCOT RICHARD MENTE, CHAKRAPANI SUBRAMANYAM
  • Publication number: 20170014523
    Abstract: The present invention is directed to novel cytotoxic spliceostatin analogs and derivatives, to antibody drug conjugates thereof, and to methods for using the same to treat medical conditions including cancer.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Inventors: Chakrapani SUBRAMANYAM, Frank Erich KOEHN, Kenneth John DIRICO, Alessandra S. EUSTAQUIO, Michael Eric GREEN, Haiyin HE, Min HE, Christopher John O'DONNELL, Sujiet PUTHENVEETIL, Anokha RATNAYAKE, Jesse Alexander TESKE, Hui Yu YANG
  • Patent number: 9540352
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: January 10, 2017
    Assignee: Pfizer Inc.
    Inventors: David Lawrence Firman Gray, Lei Zhang, Michael Aaron Brodney, Michael Eric Green, Chakrapani Subramanyam
  • Patent number: 9527843
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof and N-oxides of the foregoing; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds, salts or N-oxides, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, impulsivity, compulsive gambling, overeating, autism spectrum disorder, MCI, age-related cognitive decline, dementia, RLS, Parkinson's disease, Huntington's chorea, anxiety, depression, MDD, TRD, and bipolar disorder.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: December 27, 2016
    Assignee: PFIZER INC.
    Inventors: Jennifer Elizabeth Davoren, Amy Beth Dounay, Ivan Viktorovich Efremov, David Lawrence Firman Gray, Scot Richard Mente, Steven Victor O'Neil, Bruce Nelsen Rogers, Chakrapani Subramanyam, Lei Zhang
  • Patent number: 9504669
    Abstract: The present invention is directed to novel cytotoxic spliceostatin analogs and derivatives, to antibody drug conjugates thereof, and to methods for using the same to treat medical conditions including cancer.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: November 29, 2016
    Assignee: Pfizer Inc.
    Inventors: Chakrapani Subramanyam, Frank Erich Koehn, Kenneth John Dirico, Alessandra S. Eustaquio, Michael Eric Green, Haiyin He, Min He, Christopher John O'Donnell, Sujiet Puthenveetil, Anokha Ratnayake, Jesse Alexander Teske, Hui Yu Yang
  • Publication number: 20160271270
    Abstract: The present invention is directed to novel bifunctional CTI-CTI and CBI-CTI dimers of the formula: F1-L1-T-L2-F2 where F1, L1, T, L2 and F2 are as defined herein, useful for the treatment for proliferative diseases, where the inventive dimers can function as stand-alone drugs, payloads in antibody-drug-conjugates (ADCs), and linker-payload compounds useful in connection with the production or administration of such ADCs; and to compositions including the aforementioned dimers, linker-payloads and ADCs, and methods for using these dimers, linker-payloads and ADCs, to treat pathological conditions including cancer.
    Type: Application
    Filed: March 15, 2016
    Publication date: September 22, 2016
    Applicant: Pfizer Inc.
    Inventors: Andreas MADERNA, Chakrapani SUBRAMANYAM, Lawrence N. TUMEY, Zecheng CHEN, Jeffrey M. CASAVANT
  • Publication number: 20160229847
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula II as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Application
    Filed: September 22, 2014
    Publication date: August 11, 2016
    Inventors: Martin Youngjin Pettersson, Christopher William am Ende, Michael Eric Green, Douglas Scott Johnson, Gregory Wayne Kauffman, Christopher William O'Donnell, Nandini Chaturbhai Patel, Antonia Friederike Stepan, Cory Michael Stiff, Chakrapani Subramanyam, Tuan Phong Tran, Patrick Robert Verhoest
  • Publication number: 20160200711
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Application
    Filed: March 22, 2016
    Publication date: July 14, 2016
    Applicant: PFIZER INC.
    Inventors: DAVID LAWRENCE FIRMAN GRAY, LEI ZHANG, MICHALE AARON BRODNEY, MICHAEL ERIC GREEN, CHAKRAPANI SUBRAMANYAM
  • Patent number: 9249186
    Abstract: The present invention is directed to cytotoxic pentapeptides, to antibody drug conjugates thereof, and to methods for using the same to treat cancer.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: February 2, 2016
    Assignee: Pfizer Inc.
    Inventors: Matthew David Doroski, Andreas Maderna, Christopher John O'Donnell, Chakrapani Subramanyam, Beth Vetelino, Russell George Dushin, Pavel Strop, Edmund Idris Graziani
  • Publication number: 20160024088
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Application
    Filed: October 7, 2015
    Publication date: January 28, 2016
    Inventors: Martin Youngjin Pettersson, Douglas Scott Johnson, Chakrapani Subramanyam, Christopher John O'Donnell, Christopher William am Ende, Michael Eric Green, Nandini Chaturbhai Patel, Cory Michael Stiff, Tuan Phong Tran, Gregory Wayne Kauffman, Antonia Friederike Stepan, Patrick Robert Verhoest
  • Publication number: 20160022626
    Abstract: The present invention is directed to novel cytotoxic spliceostatin analogs and derivatives, to antibody drug conjugates thereof, and to methods for using the same to treat medical conditions including cancer.
    Type: Application
    Filed: August 5, 2015
    Publication date: January 28, 2016
    Inventors: Chakrapani SUBRAMANYAM, Frank Erich Koehn, Kenneth John Dirico, Alessandra S. Eustaquio, Michael Eric Green, Haiyin He, Min He, Christopher John O'Donnell, Sujiet Puthenveetil, Anokha Ratnayake, Jesse Alexander Teske, Hui Yu Yang
  • Publication number: 20150344490
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof and N-oxides thereof; processes and intermediates for preparation of; and compositions and uses thereof. The present invention further provides D1 agonists with reduced D1R desensitization, D1 agonists with a reduced ?-arrestin recruitment activity relative to Dopamine, D1 agonists interacting significantly with the Ser188 but not significantly with the Ser202 of a D1R when binding to the D1R, D1 agonists interacting less strongly with the Asp103 and interacting less strongly with the Ser198 of a D1R when binding to the D1R, and their uses.
    Type: Application
    Filed: August 7, 2015
    Publication date: December 3, 2015
    Applicant: PFIZER INC.
    Inventors: JOTHAM WADSWORTH COE, JOHN ARTHUR ALLEN, JENNIFER ELIZABETH DAVOREN, AMY BETH DOUNAY, IVAN VIKTOROVICH EFREMOV, DAVID LAWRENCE FIRMAN GRAY, EDWARD RAYMOND GUILMETTE, ANTHONY RICHARD HARRIS, CHRIS JOHN HELAL, JACLYN LOUISE HENDERSON, SCOT RICHARD MENTE, DEANE MILFORD NASON, STEVEN VICTOR O'NEIL, CHAKRAPANI SUBRAMANYAM, WENJIAN XU
  • Publication number: 20150344474
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof and N-oxides of the foregoing; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds, salts or N-oxides, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, impulsivity, compulsive gambling, overeating, autism spectrum disorder, MCI, age-related cognitive decline, dementia, RLS, Parkinson's disease, Huntington's chorea, anxiety, depression, MDD, TRD, and bipolar disorder.
    Type: Application
    Filed: August 6, 2015
    Publication date: December 3, 2015
    Applicant: PFIZER INC.
    Inventors: JENNIFER ELIZABETH DAVOREN, AMY BETH DOUNAY, IVAN VIKTOROVICH EFREMOV, DAVID LAWRENCE FIRMAN GRAY, SCOT RICHARD MENTE, STEVEN VICTOR O'NEIL, BRUCE NELSEN ROGERS, CHAKRAPANI SUBRAMANYAM, LEI ZHANG
  • Patent number: 9193726
    Abstract: Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: November 24, 2015
    Assignee: Pfizer Inc.
    Inventors: Martin Youngjin Pettersson, Douglas Scott Johnson, Chakrapani Subramanyam, Christopher John O'Donnell, Christopher William am Ende, Michael Eric Green, Nandini Chaturbhai Patel, Cory Michael Stiff, Tuan Phong Tran, Gregory Wayne Kauffman, Antonia Friederike Stepan, Patrick Robert Verhoest
  • Publication number: 20150307494
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), schizotypal personality disorder, cognitive impairment (e.g., cognitive impairment associated with schizophrenia, AD, PD, or pharmacotherapy therapy), ADHD, Parkinson's disease, anxiety, and depression.
    Type: Application
    Filed: April 23, 2015
    Publication date: October 29, 2015
    Applicant: PFIZER INC.
    Inventors: DAVID LAWRENCE FIRMAN GRAY, LEI ZHANG, MICHAEL AARON BRODNEY, MICHAEL ERIC GREEN, CHAKRAPANI SUBRAMANYAM