Patents by Inventor Christopher John Helal
Christopher John Helal 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: 20250129048Abstract: Described herein are compounds of Formula I: I and their pharmaceutically acceptable salts, wherein R1, R2, R3, R4, R7, RF, t1, Y1, and Y2 are defined herein; their use as MC4R antagonists; pharmaceutical compositions containing such compounds and salts; the use of such compounds and salts to treat, for example, cachexia, anorexia, or anorexia nervosa; and intermediates and processes for preparing such compounds and salts.Type: ApplicationFiled: December 5, 2022Publication date: April 24, 2025Applicant: Pfizer Inc.Inventors: Michelle Renee Garnsey, David Andrew Griffith, Christopher John Helal, Daniel Wei-Shung Kung, Yajing Lian, Kevin Alexander Ogilvie, Jana Polivkova, Brian Raymer, Matthew Forrest Sammons, Aaron Christopher Smith, Qingyi Yang
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Patent number: 12049465Abstract: The present invention is directed to compounds of Formula I: or a pharmaceutically acceptable salt thereof, wherein the substituents A, R1, R2, R3a, R3b, R4a, R4b and n are as defined herein. The inventions also directed to pharmaceutical compositions comprising the compounds, methods of treatment using the compounds and methods of preparing the compounds.Type: GrantFiled: August 12, 2022Date of Patent: July 30, 2024Assignee: Pfizer Inc.Inventors: Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Christopher John Helal, Simone Sciabola, Erik Alphie LaChapelle, Travis T. Wager, Ramalakshmi Yegna Chandrasekaran
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Publication number: 20230340530Abstract: The present invention provides methods of protecting ribonucleic acid (RNA) from degradation under certain conditions by contacting the RNA with compounds that contain at least one boron atom. The present invention also provides compositions comprising such compounds and RNA.Type: ApplicationFiled: August 27, 2021Publication date: October 26, 2023Applicant: Pfizer Inc.Inventors: Timothy Leyden Foley, Christopher John Helal
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Publication number: 20230192654Abstract: The present invention provides, in part, compounds of Formula I: or an N-oxide thereof, or a pharmaceutically acceptable salt of the compound or the N-oxide, wherein: X1, X2, R1, R2, m and n are as described herein; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds, N-oxides, or salts, and their uses for treating M4-mediated (or M4-associated) disorders including, e.g., Alzheimer's Disease, Parkinson's Disease, schizophrenia (e.g., its cognitive and negative symptoms), pain, addiction, and a sleep disorder.Type: ApplicationFiled: October 19, 2022Publication date: June 22, 2023Inventors: Lei Zhang, Erik Alphie LaChapelle, Christopher Ryan Butler, Natasha Mariam Kablaoui, Michael Aaron Brodney, Laura Ann McAllister, Qingyi Yang, Christopher John Helal, Damien Webb
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Publication number: 20230146535Abstract: The present invention is directed to compounds of Formula I: or a pharmaceutically acceptable salt thereof, wherein the substituents A, R1, R2, R3a, R3b, R4a, R4b and n are as defined herein. The inventions also directed to pharmaceutical compositions comprising the compounds, methods of treatment using the compounds and methods of preparing the compounds.Type: ApplicationFiled: October 12, 2022Publication date: May 11, 2023Applicant: PFIZER INC.Inventors: Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Christopher John Helal, Simone Sciabola, Erik Alphie LaChapelle, Travis T. Wager, Ramalakshmi Yegna Chandrasekaran
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Publication number: 20230002386Abstract: The present invention is directed to compounds of Formula I: or a pharmaceutically acceptable salt thereof, wherein the substituents A, R1, R2, R3a, R3b, R4a, R4b and n are as defined herein. The inventions also directed to pharmaceutical compositions comprising the compounds, methods of treatment using the compounds and methods of preparing the compounds.Type: ApplicationFiled: August 12, 2022Publication date: January 5, 2023Applicant: PFIZER INC.Inventors: Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Christopher John Helal, Simone Sciabola, Erik Alphie LaChapelle, Travis T. Wager, Ramalakshmi Yegna Chandrasekaran
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Patent number: 11524954Abstract: The present invention provides, in part, compounds of Formula I: or an N-oxide thereof, or a pharmaceutically acceptable salt of the compound or the N-oxide, wherein: X1, X2, R1, R2, m and n are as described herein; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds, N-oxides, or salts, and their uses for treating M4-mediated (or M4-associated) disorders including, e.g., Alzheimer's Disease, Parkinson's Disease, schizophrenia (e.g., its cognitive and negative symptoms), pain, addiction, and a sleep disorder.Type: GrantFiled: March 25, 2019Date of Patent: December 13, 2022Assignee: Pfizer Inc.Inventors: Lei Zhang, Erik Alphie LaChapelle, Christopher Ryan Butler, Natasha Mariam Kablaoui, Michael Aaron Brodney, Laura Ann McAllister, Qingyi Yang, Christopher John Helal, Damien Webb
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Patent number: 11472805Abstract: The present invention is directed to compounds of Formula I: or a pharmaceutically acceptable salt thereof, wherein the substituents A, R1, R2, R3a, R3b, R4a, R4b and n are as defined herein. The inventions also directed to pharmaceutical compositions comprising the compounds, methods of treatment using the compounds and methods of preparing the compounds.Type: GrantFiled: June 9, 2016Date of Patent: October 18, 2022Assignee: PFIZER, INC.Inventors: Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Christopher John Helal, Simone Sciabola, Erik Alphie LaChapelle, Travis T. Wager, Ramalakshmi Yegna Chandrasekaran
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Patent number: 11312713Abstract: The present invention provides novel imidazo[4,5-c]quinoline derivatives of Formula (I), and the pharmaceutically acceptable salts thereof I wherein R1, R2 and R3 are as defined in the specification. The invention is also directed to pharmaceutical compositions comprising the compounds of Formula I and to use of the compounds in the treatment of diseases associated with LRRK2, such as neurodegenerative diseases including Parkinson's disease or Alzheimer's disease, cancer, Crohn's disease or leprosy.Type: GrantFiled: March 6, 2018Date of Patent: April 26, 2022Assignee: Pfizer Inc.Inventors: Michael Aaron Brodney, Thomas Allen Chappie, Jinshan Michael Chen, Jotham Wadsworth Coe, Karen Jean Coffman, Paul Galatsis, Michelle Renee Garnsey, Christopher John Helal, Jaclyn Louise Henderson, Bethany Lyn Kormos, Ravi G. Kurumbail, Luis Angel Martinez-Alsina, Martin Youngjin Pettersson, Matthew Richard Reese, Colin Richard Rose, Antonia Friederike Stepan, Patrick Robert Verhoest, Travis T. Wager, Joseph Scott Warmus, Yuan Zhang
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Publication number: 20210355117Abstract: The present invention provides novel imidazo[4,5-c]quinoline derivatives of Formula (I), and the pharmaceutically acceptable salts thereof I wherein R1, R2 and R3 are as defined in the specification. The invention is also directed to pharmaceutical compositions comprising the compounds of Formula I and to use of the compounds in the treatment of diseases associated with LRRK2, such as neurodegenerative diseases including Parkinson's disease or Alzheimer's disease, cancer, Crohn's disease or leprosy.Type: ApplicationFiled: March 6, 2018Publication date: November 18, 2021Inventors: Michael Aaron BRODNEY, Thomas Allen CHAPPIE, Jinshan Michael CHEN, Jotham Wadsworth COE, Karen Jean COFFMAN, Paul GALATSIS, Michelle Renee GARNSEY, Christopher John HELAL, Jaclyn Louise Henderson, Bethany Lyn KORMOS, Ravi G. KURUMBAIL, Luis Angel MARTINEZ-ALSINA, Martin Youngjin PETTERSSON, Matthew Richard REESE, Colin Richard ROSE, Antonia Friederike STEPAN, Patrick Robert VERHOEST, Travis T. WAGER, Joseph Scott WARMUS, Yuan ZHANG
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Patent number: 11161844Abstract: The present invention provides novel cyclic substituted imidazo[4,5-c]quinoline derivatives of Formula (I), and the pharmaceutically acceptable salts thereof; wherein R1, R2, R4, R5, R6, X and Z are as defined in the specification. The invention is also directed to pharmaceutical compositions comprising the compounds of Formula I and to use of the compounds in the treatment of diseases associated with LRRK2, such as neurodegenerative diseases including Parkinson's disease or Alzheimer's disease, cancer, Crohn's disease or leprosy.Type: GrantFiled: March 1, 2018Date of Patent: November 2, 2021Assignee: PFIZER INC.Inventors: Thomas Allen Chappie, Paul Galatsis, Michelle Renee Garnsey, Christopher John Helal, Jaclyn Louise Henderson, Bethany Lyn Kormos, Ravi G. Kurumbail, Luis Angel Martinez-Alsina, Martin Youngjin Pettersson, Antonia Friederike Stepan, Travis T. Wager
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Publication number: 20210024497Abstract: The present invention provides, in part, compounds of Formula I: or an N-oxide thereof, or a pharmaceutically acceptable salt of the compound or the N-oxide, wherein: X1, X2, R1, R2, m and n are as described herein; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds, N-oxides, or salts, and their uses for treating M4-mediated (or M4-associated) disorders including, e.g., Alzheimer's Disease, Parkinson's Disease, schizophrenia (e.g., its cognitive and negative symptoms), pain, addiction, and a sleep disorder.Type: ApplicationFiled: March 25, 2019Publication date: January 28, 2021Inventors: Lei Zhang, Erik Alphie LaChapelle, Christopher Ryan Butler, Natasha Mariam Kablaoui, Michael Aaron Brodney, Laura Ann McAllister, Qingyi Yang, Christopher John Helal, Damien Webb
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Patent number: 10858373Abstract: The present invention provides, in part, heterocyclic spiro 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 MAGL-mediated diseases and disorders including, e.g., pain, an inflammatory disorder, depression, anxiety, Alzheimer's disease, a metabolic disorder, stroke, or cancer.Type: GrantFiled: June 3, 2019Date of Patent: December 8, 2020Assignee: Pfizer Inc.Inventors: Michael Aaron Brodney, Christopher Ryan Butler, Laura Ann McAllister, Christopher John Helal, Steven Victor O'Neil, Patrick Robert Verhoest
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Patent number: 10738063Abstract: The present invention is directed to PDE4B inhibitors of Formula I: (I) or a pharmaceutically acceptable salt thereof, wherein the substituents R1, R2, R3, and R4 are as defined herein. The invention is also directed to pharmaceutical compositions comprising the compounds, methods of treatment using the compounds, and methods of preparing the compounds.Type: GrantFiled: May 31, 2019Date of Patent: August 11, 2020Assignee: Pfizer Inc.Inventors: Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Christopher John Helal, Simone Sciabola, Erik Alphie LaChapelle, Travis T. Wager, Matthew Merrill Hayward
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Patent number: 10723711Abstract: 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 MAGL-mediated diseases and disorders including, e.g., pain, an inflammatory disorder, traumatic brain injury, depression, anxiety, Alzheimer's disease, a metabolic disorder, stroke, or cancer.Type: GrantFiled: August 21, 2019Date of Patent: July 28, 2020Assignee: Pfizer Inc.Inventors: Christopher Ryan Butler, Laura Ann McAllister, Elizabeth Mary Beck, Michael Aaron Brodney, Adam Matthew Gilbert, Christopher John Helal, Douglas Scott Johnson, Justin Ian Montgomery, Steven Victor O'Neil, Bruce Nelsen Rogers, Patrick Robert Verhoest, Damien Webb
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Patent number: 10669279Abstract: The present invention is directed to compounds of Formula I: or a pharmaceutically acceptable salt thereof, wherein the substituents R1, R3, R6, R7, and b are as defined herein. The invention is also directed to pharmaceutical compositions comprising the compounds, methods of treatment using the compounds, and methods of preparing the compounds.Type: GrantFiled: June 27, 2019Date of Patent: June 2, 2020Assignee: Pfizer Inc.Inventors: Thomas Allen Chappie, Nandini Chaturbhai Patel, Matthew Merrill Hayward, Christopher John Helal, Simone Sciabola, Erik Alphie LaChapelle, Joseph Michael Young, Patrick Robert Verhoest
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Patent number: 10626125Abstract: 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 MAGL-mediated diseases and disorders including, e.g., pain, an inflammatory disorder, depression, anxiety, Alzheimer's disease, a metabolic disorder, stroke, or cancer.Type: GrantFiled: May 23, 2019Date of Patent: April 21, 2020Assignee: Pfizer Inc.Inventors: Michael Aaron Brodney, Christopher Ryan Butler, Laura Ann McAllister, Christopher John Helal, Steven Victor O'Neil, Patrick Robert Verhoest
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Publication number: 20200039977Abstract: The present invention provides novel cyclic substituted imidazo[4,5-c]quinoline derivatives of Formula (I), and the pharmaceutically acceptable salts thereof, wherein R1, R2, R4, R5, R6, X and Z are as defined in the specification. The invention is also directed to pharmaceutical compositions comprising the compounds of Formula I and to use of the compounds in the treatment of diseases associated with LRRK2, such as neurodegenerative diseases including Parkinson's disease or Alzheimer's disease, cancer, Crohn's disease or leprosy.Type: ApplicationFiled: March 1, 2018Publication date: February 6, 2020Inventors: Thomas Allen Chappie, Paul Galatsis, Michelle Renee Garnsey, Christopher John Helal, Jaclyn Louise Henderson, Bethany Lyn Kormos, Ravi G. Kurumbail, Luis Angel Martinez-Alsina, Martin Youngjin Pettersson, Antonia Friederike Stepan, Travis T. Wager
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Publication number: 20190322674Abstract: The present invention is directed to compounds of Formula I: or a pharmaceutically acceptable salt thereof, wherein the substituents R1, R3, R6, R7, and b are as defined herein. The invention is also directed to pharmaceutical compositions comprising the compounds, methods of treatment using the compounds, and methods of preparing the compounds.Type: ApplicationFiled: June 27, 2019Publication date: October 24, 2019Inventors: Thomas Allen Chappie, Nandini Chaturbhai Patel, Matthew Merrill Hayward, Christopher John Helal, Simone Sciabola, Erik Alphie LaChapelle, Joseph Michael Young, Patrick Robert Verhoest
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Publication number: 20190300546Abstract: The present invention is directed to PDE4B inhibitors of Formula I: (I) or a pharmaceutically acceptable salt thereof, wherein the substituents R1, R2, R3, and R4 are as defined herein. The invention is also directed to pharmaceutical compositions comprising the compounds, methods of treatment using the compounds, and methods of preparing the compounds.Type: ApplicationFiled: May 31, 2019Publication date: October 3, 2019Inventors: Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Christopher John Helal, Simone Sciabola, Erik Alphie LaChapelle, Travis T. Wager, Matthew Merrill Hayward