Patents by Inventor Timothy L. Macdonald

Timothy L. Macdonald 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: 10369120
    Abstract: The present invention provides novel T type calcium channel inhibitors of formula (I), the use thereof in the treatment of a disease or condition in a mammal associated with influx of extracellular calcium via T type calcium channels, wherein R1 is C1-C4 alkyl, hydroxy, or C1-C4 alkoxy; Z is NH, NCH3, O, S, or CH2; Y is NH, O, or CH2 with the proviso that Y and Z are not the same; R2 is H, halo, NH2, C1-C4 alkyl, hydroxy, or C1-C4 alkoxy; m and n are independently selected from integers ranging from 1-5 with the proviso that m+n=an integer ranging from 2-9; and R3 is H, halo, NH2, C1-C4 alkyl, hydroxy, or C1-C4 alkoxy.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: August 6, 2019
    Assignee: University of Virginia Patent Foundation
    Inventors: Lloyd S. Gray, Timothy L. Macdonald, Doris M. Haverstick, Jaclyn R. Patterson, William F. McCalmont
  • Patent number: 9908849
    Abstract: Imidamide (amidine) analogs that can inhibit the activity of sphingosine kinase 1 and sphingosine kinase 2 (SphK1 & SphK2) are provided. The compounds can prevent angiogenesis in tumors.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: March 6, 2018
    Assignee: University of Virginia Patent Foundation
    Inventors: Kevin R. Lynch, Timothy L. Macdonald, Thomas P. Mathews, Andrew Kennedy, Yugesh Kharel
  • Patent number: 9688668
    Abstract: The invention relates to inhibitors of Sphingosine Kinase enzymatic activity, and methods of treating diseases and disorders by administering inhibitors of Sphingosine Kinase enzymatic activity.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: June 27, 2017
    Assignee: University of Virginia Patent Foundation
    Inventors: Webster L. Santos, Kevin R. Lynch, Timothy L. Macdonald, Andrew Kennedy, Yugesh Kharel, Mithun Rajendra Raje, Joseph Houck
  • Publication number: 20170166525
    Abstract: Imidamide (amidine) analogs that can inhibit the activity of sphingosine kinase 1 and sphingosine kinase 2 (SphK1 & SphK2) are provided. The compounds can prevent angiogenesis in tumors.
    Type: Application
    Filed: August 19, 2016
    Publication date: June 15, 2017
    Inventors: Kevin R. Lynch, Timothy L. Macdonald, Thomas P. Mathews, Andrew Kennedy, Yugesh Kharel
  • Patent number: 9421177
    Abstract: Imidamide (amidine) analogs that can inhibit the activity of sphingosine kinase 1 and sphingosine kinase 2 (SphK1 & SphK2) are provided. The compounds can prevent angiogenesis in tumors.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: August 23, 2016
    Assignee: University of Virginia Patent Foundation
    Inventors: Kevin R. Lynch, Timothy L. Macdonald, Thomas P. Mathews, Andrew Kennedy, Yugesh Kharel
  • Patent number: 9376430
    Abstract: The invention provides novel antimicrobial chemical entities based on a nitrothiazolide backbone that exhibit antibacterial and antiparasitic action against a wide range of human pathogens. The new classes of compounds show extended action against Gram positive bacteria including MRSA drug resistant pathogens. In the Gram-positive organisms, they specifically target and functionally inhibit microbial attachment to surfaces and biofilm formation. In Gram-negative bacteria, including enteroaggregative E. coli strains, these compounds function as pilicides by inhibiting the assembly of pilin subunits into adhesive filaments. Several of these compounds show potent antimicrobial action against Gram positive bacteria, perhaps involving novel targets. Many of the benzothiophene derivatives exhibit antimicrobial activity in the low micrograms per ml range and in blocking biofilm formation in the nanomolar range; ranges considered are well within the range of utility as therapeutics.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: June 28, 2016
    Assignee: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: Paul S. Hoffman, Richard L. Guerrant, Timothy L. Macdonald, Thomas Eric Ballard, Jr.
  • Publication number: 20160136115
    Abstract: The present invention provides novel T type calcium channel inhibitors of formula (I), the use thereof in the treatment of a disease or condition in a mammal associated with influx of extracellular calcium via T type calcium channels, wherein R1 is C1-C4 alkyl, hydroxy, or C1-C4 alkoxy; Z is NH, NCH3, O, S, or CH2; Y is NH, O, or CH2 with the proviso that Y and Z are not the same; R2 is H, halo, NH2, C1-C4 alkyl, hydroxy, or C1-C4 alkoxy; m and n are independently selected from integers ranging from 1-5 with the proviso that m+n=an integer ranging from 2-9; and R3 is H, halo, NH2, C1-C4 alkyl, hydroxy, or C1-C4 alkoxy.
    Type: Application
    Filed: November 5, 2015
    Publication date: May 19, 2016
    Inventors: Lloyd S. Gray, Timothy L. Macdonald, Doris M. Haverstick, Jaclyn R. Patterson, William F. McCalmont
  • Patent number: 9333193
    Abstract: The invention provides for the use of antimicrobial chemical entities based on a nitrothiazolide backbone that exhibit anti-mycobacteria activity, including the mycobacterium causing tuberculosis. Multiple compounds were synthesized and screened for anti-tuberculosis activity. Disclosed herein are a series of compounds with anti-tuberculosis activity, including six leads that completely inhibited bacterial growth at 5 micrograms per ml or less. Three of these compounds were tested to determine MIC and these ranged between 1 and 4 micrograms per ml against both drug susceptible Mycobacterium tuberculosis strains and strains that are multi-drug resistant (MDR) including XDR strains. The compounds developed are derived from parent compound nitazoxanide, which had no inhibitory activity in the stringent testing format used herein.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: May 10, 2016
    Assignee: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: Paul S. Hoffman, Timothy L. MacDonald, Eric R. Houpt, Thomas E. Ballard, Jr.
  • Patent number: 9278098
    Abstract: Phthalazine analogs of a Lisofylline (LSF) and synthetic methods for preparation of such analogs are provided. Compounds of the invention have structural formula III: wherein 1) R3a is hydrogen and R3b is selected from C5-22alkyl, C2-22alkenyl, or C2-22alkynyl; or a pharmaceutically acceptable salt thereof; or 2) R3b is hydrogen and R3a is selected from C9alkyl, C15-22alkyl, C9-22alkenyl, or C2-22alkynyl; or a pharmaceutically acceptable salt thereof; or 3) R3a and R3b are the same or different and are selected from C9alkyl, C15-22alkyl, C4-22alkenyl, or C2-22alkynyl; or a pharmaceutically acceptable salt thereof. The analogs of LSF provided have the ability to protect cell viability, particularly the ability to protect pancreatic ?-cells, to induce insulin secretion.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: March 8, 2016
    Assignee: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: Timothy L. MacDonald, Jerry L. Nadler, Peng Cui
  • Patent number: 9212127
    Abstract: The present invention provides novel T type calcium channel inhibitors of formula (I), the use thereof in the treatment of a disease or condition in a mammal associated with influx of extracellular calcium via T type calcium channels, wherein R1 is C1-C4 alkyl, hydroxy, or C1-C4 alkoxy; Z is NH, NCH3, O, S, or CH2; Y is NH, O, or CH2 with the proviso that Y and Z are not the same; R2 is H, halo, NH2, C1-C4 alkyl, hydroxy, or C1-C4 alkoxy; m and n are independently selected from integers ranging from 1-5 with the proviso that m+n=an integer ranging from 2-9; and R3 is H, halo, NH2, C1-C4 alkyl, hydroxy, or C1-C4 alkoxy.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: December 15, 2015
    Assignee: University of Virginia Patent Foundation
    Inventors: Lloyd S. Gray, Timothy L. MacDonald, Doris M. Haverstick, Jaclyn R. Patterson, William F. McCalmont
  • Publication number: 20150210675
    Abstract: The invention relates to inhibitors of Sphingosine Kinase enzymatic activity, and methods of treating diseases and disorders by administering inhibitors of Sphingosine Kinase enzymatic activity.
    Type: Application
    Filed: February 8, 2013
    Publication date: July 30, 2015
    Inventors: Santos L. Webster, Kevin R. Lynch, Timothy L. Macdonald, Andrew Kennedy, Yugesh Kharel, Mithun Rajendra Raje, Joseph Houck
  • Publication number: 20150164892
    Abstract: Analogs of a Lisofylline (LSF), and synthetic methods for preparation of such analogs are provided. The analogs of LSF provided have the ability to protect cell viability, particularly the ability to protect pancreatic ?-cells.
    Type: Application
    Filed: October 27, 2014
    Publication date: June 18, 2015
    Inventors: Timothy L. MACDONALD, Jerry L. NADLER, Peng CUI
  • Patent number: 8987321
    Abstract: The present invention provides analogs of a Lysofylline (LSF), and synthetic methods for the preparation of such analogs. The have the active side chain moiety (5-R-hydroxyhexyl) of LSF and can have greater potency and oral bioavailability than LSF.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: March 24, 2015
    Assignee: University of Virginia Patent Foundation
    Inventors: Timothy L. MacDonald, Jerry L. Nadler, Peng Cui
  • Publication number: 20150018330
    Abstract: The invention provides novel antimicrobial chemical entities based on a nitrothiazolide backbone that exhibit antibacterial and antiparasitic action against a wide range of human pathogens. The new classes of compounds show extended action against Gram positive bacteria including MRSA drug resistant pathogens. In the Gram-positive organisms, they specifically target and functionally inhibit microbial attachment to surfaces and biofilm formation. In Gram-negative bacteria, including enteroaggregative E. coli strains, these compounds function as pilicides by inhibiting the assembly of pilin subunits into adhesive filaments. Several of these compounds show potent antimicrobial action against Gram positive bacteria, perhaps involving novel targets. Many of the benzothiophene derivatives exhibit antimicrobial activity in the low micrograms per ml range and in blocking biofilm formation in the nanomolar range; ranges considered are well within the range of utility as therapeutics.
    Type: Application
    Filed: July 30, 2014
    Publication date: January 15, 2015
    Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: Paul S. Hoffman, Richard L. Guerrant, Timothy L. MacDonald, Thomas Eric Ballard, JR.
  • Patent number: 8871764
    Abstract: Analogs of a Lisofylline (LSF), and synthetic methods for the preparation of such analogs are provided. The analogs of LSF provided have the ability to protect cell viability, particularly the ability to protect pancreatic ?-cells.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: October 28, 2014
    Assignee: University of Virginia Patent Foundation
    Inventors: Timothy L. MacDonald, Jerry L. Nadler, Peng Cui
  • Patent number: 8835644
    Abstract: The invention provides novel antimicrobial chemical entities based on a nitrothiazolide backbone that exhibit antibacterial and antiparasitic action against a wide range of human pathogens. The new classes of compounds show extended action against Gram positive bacteria including MRSA drug resistant pathogens. In the Gram-positive organisms, they specifically target and functionally inhibit microbial attachment to surfaces and biofilm formation. In Gram-negative bacteria, including enteroaggregative E. coli strains, these compounds function as pilicides by inhibiting the assembly of pilin subunits into adhesive filaments. Several of these compounds show potent antimicrobial action against Gram positive bacteria, perhaps involving novel targets. Many of the benzothiophene derivatives exhibit antimicrobial activity in the low micrograms per ml range and in blocking biofilm formation in the nanomolar range; ranges considered are well within the range of utility as therapeutics.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: September 16, 2014
    Assignee: University of Virginia Patent Foundation
    Inventors: Paul S. Hoffman, Richard L. Guerrant, Timothy L. Macdonald, Thomas Eric Ballard, Jr.
  • Patent number: 8686046
    Abstract: Amidine analogs that can inhibit the activity of sphingosine kinase 1 and sphingosine kinase 2 (SphK1 & SphK2) are provided. The compounds can prevent angiogenesis in tumor cells.
    Type: Grant
    Filed: October 2, 2010
    Date of Patent: April 1, 2014
    Assignee: University of Virginia Patent Foundation
    Inventors: Kevin R. Lynch, Timothy L. Macdonald, Yugesh Kharel, Thomas P. Mathews, Brian R. Wamhoff
  • Publication number: 20140018355
    Abstract: The present invention provides analogs of a Lysofylline (LSF), and synthetic methods for the preparation of such analogs. The have the active side chain moiety (5-R-hydroxyhexyl) of LSF and can have greater potency and oral bioavailability than LSF.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 16, 2014
    Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: Timothy L. MACDONALD, Jerry L. NADLER, Peng CUI
  • Publication number: 20130317070
    Abstract: The invention provides for the use of antimicrobial chemical entities based on a nitrothiazolide backbone that exhibit anti-mycobacteria activity, including the mycobacterium causing tuberculosis. Multiple compounds were synthesized and screened for anti-tuberculosis activity. Disclosed herein are a series of compounds with anti-tuberculosis activity, including six leads that completely inhibited bacterial growth at 5 micrograms per ml or less. Three of these compounds were tested to determine MIC and these ranged between 1 and 4 micrograms per ml against both drug susceptible Mycobacterium tuberculosis strains and strains that are multi-drug resistant (MDR) including XDR strains. The compounds developed are derived from parent compound nitazoxanide, which had no inhibitory activity in the stringent testing format used herein.
    Type: Application
    Filed: September 20, 2011
    Publication date: November 28, 2013
    Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION D/B/A UNIVERSITY OF VIRGINIA LICENSING & VENTURES GROUP
    Inventors: Paul S. Hoffman, Timothy L. MacDonald, Eric R. Houpt, Thomas E. Ballard
  • Patent number: 8481580
    Abstract: The present invention provides analogs of a Lysofylline (LSF), and synthetic methods for the preparation of such analogs. The have the active side chain moiety (5-R-hydroxyhexyl) of LSF and can have greater potency and oral bioavailability than LSF.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: July 9, 2013
    Assignee: University of Virginia Patent Foundation
    Inventors: Timothy L. Macdonald, Jerry L. Nadler, Peng Cui