Patents by Inventor Raymond J. Dingledine

Raymond J. Dingledine 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).

  • Publication number: 20220162186
    Abstract: The disclosure relates to Prostnglandin receptor EP2 antagonists, derivatives, compositions, and methods related thereto. In certain embodiments, the disclosure relates to methods of treating or preventing conditions and diseases in which EP2 receptor activation has a physiological role, such as but not limited to, brain injury, inflammatory diseases, epilepsy, neuroinflammation after a seizure, pain, endometriosis, cancer, rheumatoid arthritis, skin inflammation, vascular inflammation, colitis, and neurological disorders by administering a pharmaceutical composition comprising a compound disclosed herein to a subject in need thereof.
    Type: Application
    Filed: March 19, 2020
    Publication date: May 26, 2022
    Inventors: Thota GANESH, Raymond J. DINGLEDINE, Radhika AMARADAHI, Shabber MOHAMMED
  • Patent number: 9079852
    Abstract: Provided are compounds, pharmaceutical compositions and methods of treatment or prophylaxis of disorders associated with NMDA receptor activity, including neuropathic pain, stroke, traumatic brain injury, epilepsy, and related neurologic events or neurodegeneration. Compounds are of the general Formula I, or a pharmaceutically acceptable salt, ester, prodrug or derivative thereof are provided: wherein: each (L)k-Ar1 is a substituted or unsubstituted, mono or bicyclic aryl or heteroaryl; W is a bond, alkyl, or alkenyl; X is a bond, NR1 or O and each R1 and R2 is independently H, alkyl, alkenyl or aralkyl or R1 and R2 taken together form a 5-8 membered ring; R3?-R6 are selected from certain specific substituents or a carbonyl; Y is a bond, O, S, SO, SO2, CH2, NH, N(alkyl), or NHC(?O); and Z is OH, NR6R7, NR8SO2(alkyl), NR8C(O)NR6R7, NR8C(O)O(alkyl), NR8-dihydrothiazole, or NR8-dihydroimidazole or wherein Z can fuse with Ar2 to form selected heterocycles.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: July 14, 2015
    Assignees: Emory University, NeurOp, Inc.
    Inventors: Dennis C. Liotta, James P. Snyder, Stephen F. Traynelis, Lawrence Wilson, Cara Mosley, Raymond J. Dingledine, Scott Myers, Yesim Altas Tahirovic
  • Publication number: 20140031363
    Abstract: Provided are compounds, pharmaceutical compositions and methods of treatment or prophylaxis of disorders associated with NMDA receptor activity, including neuropathic pain, stroke, traumatic brain injury, epilepsy, and related neurologic events or neurodegeneration. Compounds are of the general Formula I, or a pharmaceutically acceptable salt, ester, prodrug or derivative thereof are provided: wherein: each (L)k-Ar1 is a substituted or unsubstituted, mono or bicyclic aryl or heteroaryl; W is a bond, alkyl, or alkenyl; X is a bond, NR1 or O and each R1 and R2 is independently H, alkyl, alkenyl or aralkyl or R1 and R2 taken together form a 5-8 membered ring; R3-R6 are selected from certain specific substituents or a carbonyl; Y is a bond, O, S, SO, SO2, CH2, NH, N(alkyl), or NHC(?O); and Z is OH, NR6R7, NR8SO2(alkyl), NR8C(O)NR6R7, NR8C(O)O(alkyl), NR8-dihydrothiazole, or NR8-dihydroimidazole or wherein Z can fuse with Ar2 to form selected heterocycles.
    Type: Application
    Filed: April 15, 2013
    Publication date: January 30, 2014
    Inventors: Dennis C. Liotta, James P. Snyder, Stephen F. Traynelis, Lawrence Wilson, Cara Mosley, Raymond J. Dingledine, Scott Myers, Yesim Altas Tahirovic
  • Patent number: 8420680
    Abstract: Provided are compounds, pharmaceutical compositions and methods of treatment or prophylaxis of disorders associated with NMDA receptor activity, including neuropathic pain, stroke, traumatic brain injury, epilepsy, and related neurologic events or neurodegeneration. Compounds are of the general Formula I, or a pharmaceutically acceptable salt, ester, prodrug or derivative thereof are provided: wherein: each (L)k-Ar1 is a substituted or unsubstituted, mono or bicyclic aryl or heteroaryl; W is a bond, alkyl, or alkenyl; X is a bond, NR1 or O and each R1 and R2 is independently H, alkyl, alkenyl or aralkyl or R1 and R2 taken together form a 5-8 membered ring; R3?R6 are selected from certain specific substituents or a carbonyl; Y is a bond, O, S, SO, SO2, CH2, NH, N(alkyl), or NHC(?O); and Z is OH, NR6R7, NR8SO2(alkyl), NR8C(O)NR6R7, NR8C(O)O(alkyl), NR8-dihydrothiazole, or NR8-dihydroimidazole or wherein Z can fuse with Ar2 to form selected heterocycles.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: April 16, 2013
    Assignees: Emory University, NeurOp, Inc.
    Inventors: Dennis C. Liotta, James P. Snyder, Stephen F. Traynelis, Lawrence Wilson, Cara Mosley, Raymond J. Dingledine, Yesim Altas Tahirovic, Scott J. Myers
  • Publication number: 20110160223
    Abstract: Provided are pharmaceutical compositions and methods of treatment or prophylaxis of certain neuropsychiatric conditions, in particular mood disorders. The compounds are of the general Formula I-V as described herein.
    Type: Application
    Filed: November 2, 2010
    Publication date: June 30, 2011
    Inventors: Raymond J. Dingledine, Stephen F. Traynelis
  • Publication number: 20100272648
    Abstract: Processes are provided for the identification a compound that is useful to treat or prevent a disorder that lowers the pH in a region of affected tissue comprising assessing the difference in potency, or potency boost, of the compound at physiological pH versus disorder-induced pH in a cell that expresses a human NMDA receptor. The assessment of potency boost can include measuring an IC50 of a compound at physiological pH and at disorder-induced pH (the “potency boost”) until a 95% confidence interval for the potency boost does not change more than 15% with the addition of a new experiment, wherein the measurements are repeated at least 5 times. The processes can be used for the selection of safe NMDA receptor antagonists for the treatment or prevention of a human disorder that lowers the pH in a region affected tissue. Such disorders include, but are not limited to, neuropathic pain, ischemic, Parkinsons disease, epilepsy and traumatic brain injuries.
    Type: Application
    Filed: May 3, 2010
    Publication date: October 28, 2010
    Inventors: Dennis C. Liotta, Raymond J. Dingledine, Stephen F. Traynelis
  • Publication number: 20090253710
    Abstract: Provided are compounds, pharmaceutical compositions and methods of treatment or prophylaxis of disorders associated with NMDA receptor activity, including neuropathic pain, stroke, traumatic brain injury, epilepsy, and related neurologic events or neurodegeneration. Compounds are of the general Formula I, or a pharmaceutically acceptable salt, ester, prodrug or derivative thereof are provided: wherein: each (L)k-Ar1 is a substituted or unsubstituted, mono or bicyclic aryl or heteroaryl; W is a bond, alkyl, or alkenyl; X is a bond, NR1 or O and each R1 and R2 is independently H, alkyl, alkenyl or aralkyl or R1 and R2 taken together form a 5-8 membered ring; R3?R6 are selected from certain specific substituents or a carbonyl; Y is a bond, O, S, SO, SO2, CH2, NH, N(alkyl), or NHC(?O); and Z is OH, NR6R7, NR8SO2(alkyl), NR8C(O)NR6R7, NR8C(O)O(alkyl), NR8-dihydrothiazole, or NR8-dihydroimidazole or wherein Z can fuse with Ar2 to form selected heterocycles.
    Type: Application
    Filed: June 30, 2008
    Publication date: October 8, 2009
    Inventors: Dennis C. Liotta, James P. Snyder, Stephen F. Traynelis, Lawrence Wilson, Cara Mosley, Raymond J. Dingledine, Scott Myers, Yesim Altas Tahirovic
  • Publication number: 20090023791
    Abstract: NMDA receptor blockers, including pH-sensitive NMDA receptor blockers, are provided as neurprotective drugs that are useful in stroke, traumatic brain injury, epilepsy, and other neurologic events that involve acidification of brain or spinal cord tissue. Compositions and methods of this invention are used for treating neurodegeneration resulting from NMDA receptor activation. The compounds described herein have enhanced activity in brain tissue having lower than normal pH due to pathological conditions such as hypoxia resulting from stroke, traumatic brain injury, global ischemia that may occur during cardiac surgery, hypoxia that may occur following cessation of breathing, pre-eclampsia, spinal cord trauma, epilepsy, chrounic pain, vascular dementia and glioma rumors.
    Type: Application
    Filed: May 8, 2008
    Publication date: January 22, 2009
    Applicant: Emory University
    Inventors: Stephen F. Traynelis, Dennis C. Liotta, James P. Snyder, Yesim Altas, David D. Mott, James J. Doherty, JR., Raymond J. Dingledine
  • Patent number: 7375136
    Abstract: NMDA receptor blockers, including pH-sensitive NMDA receptor blockers, are provided as neuroprotective drugs that are useful in stroke, traumatic brain injury, epilepsy, and other neurologic events that involve acidification of brain or spinal cord tissue. Compositions and methods of this invention are used for treating neurodegeneration resulting from NMDA receptor activation. The compounds described herein have enhanced activity in brain tissue having lower-than normal pH due to pathological conditions such as hypoxia resulting from stroke, traumatic brain injury, global ischemia that may occur during cardiac surgery, hypoxia that may occur following cessation of breathing, pre-eclampsia, spinal cord trauma, epilepsy, chronic pain, vascular dementia and glioma tumors.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: May 20, 2008
    Assignee: Emory University
    Inventors: Stephen F. Traynelis, Dennis C. Liotta, James P. Snyder, Yesim Altas, David D. Mott, James J. Doherty, Jr., Raymond J. Dingledine
  • Publication number: 20040138502
    Abstract: NMDA receptor blockers, including pH-sensitive NMDA receptor blockers, are provided as neuroprotective drugs that are useful in stroke, traumatic brain injury, epilepsy, and other neurologic events that involve acidification of brain or spinal cord tissue. Compositions and methods of this invention are used for treating neurodegeneration resulting from NMDA receptor activation. The compounds described herein have enhanced activity in brain tissue having lower-than normal pH due to pathological conditions such as hypoxia resulting from stroke, traumatic brain injury, global ischemia tat may occur during cardiac surgery, hypoxia tat may occur following cessation of breathing, pre-eclampsia, spinal cord trauma, epilepsy, chronic pain, vascular dementia and glioma tumors.
    Type: Application
    Filed: February 25, 2004
    Publication date: July 15, 2004
    Inventors: Stephen F Traynelis, Dennis C Liotta, James P Snyder, Yesim Altas, David D Mott, James J Doherty, Raymond J Dingledine