Patents by Inventor Leslie Gunatilaka

Leslie Gunatilaka 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: 20210047363
    Abstract: Disclosed are compounds suitable for enhancing cancer treatment, for example, a compound of formula (I): (I) wherein R1 is as defined herein. Also disclosed is a method of enhancing the response of cancer cells in a mammal to treatment with an apoptosis inducing ligand, a method of inducing apoptosis in cancer cells in a mammal, and a method of treating prostate cancer in mammal in need thereof comprising administration of a compound described herein.
    Type: Application
    Filed: March 6, 2019
    Publication date: February 18, 2021
    Applicants: The United States of America,as represented by the Secretary,Department of Health and Human Services, Arizona Board of Regents on Behalf of the University of Arizona
    Inventors: Thomas J. Sayers, Poonam Tewary, Leslie Gunatilaka, Alan D. Brooks, Kithsiri Wijeratne, Yaming Xu
  • Patent number: 10849912
    Abstract: Disclosed is a method of enhancing the response of cancer cells in a mammal to treatment with an apoptosis inducing ligand, which method comprises contacting the cancer cells with an apoptosis inducing ligand in conjunction with an effective amount of a compound of the formula: (I), wherein R1-R14 are as described herein. Also disclosed is a method of inducing apoptosis in cancer cells in a mammal, comprising contacting the cancer cells with the compound described herein and also contacting the cancer cells with an apoptosis inducing ligand, whereby apoptosis is induced in the cancer cells.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: December 1, 2020
    Assignees: The United States of America, as represented by the Secretary, Department of Health and Human Services, Arizona Board of Regents on Behalf of the University of Arizona
    Inventors: Thomas Joseph Sayers, Alan David Brooks, Curtis J. Henrich, Poonam Tewary, James Brislin McMahon, Leslie Gunatilaka, Ya-Ming Xu, Kithsiri Wijeratne
  • Publication number: 20190046543
    Abstract: Disclosed is a method of enhancing the response of cancer cells in a mammal to treatment with an apoptosis inducing ligand, which method comprises contacting the cancer cells with an apoptosis inducing ligand in conjunction with an effective amount of a compound of the formula: (I), wherein R1-R14 are as described herein. Also disclosed is a method of inducing apoptosis in cancer cells in a mammal, comprising contacting the cancer cells with the compound described herein and also contacting the cancer cells with an apoptosis inducing ligand, whereby apoptosis is induced in the cancer cells.
    Type: Application
    Filed: February 9, 2017
    Publication date: February 14, 2019
    Applicants: The United States of America, as represented by the Secretary, Department of Healthe and Human, Arizona Board of Regents on Behalf of the University of Arizona
    Inventors: Thomas Joseph Sayers, Alan David Brooks, Curtis J. Henrich, Poonam Tewary, James Brislin McMahon, Leslie Gunatilaka, Ya-Ming Xu, Kithsiri Wijeratne
  • Publication number: 20170066797
    Abstract: The present invention provides a novel class of withanolides that have been isolated from W. somnifera under aeroponic conditions or produced semi-synthetically from withanolide natural products. The invention also provides pharmaceutical compositions thereof and methods for using the same in proliferative diseases, neurodegenerative diseases, autoimmune, and inflammatory diseases.
    Type: Application
    Filed: June 7, 2016
    Publication date: March 9, 2017
    Applicants: Whitehead Institute for Biomedical Research, Arizona Board of Regents on behalf of the University of Arizona
    Inventors: Leslie Gunatilaka, Ekanayake Mudiyanselage Kithsiri Wijeratne, Ya-Ming Xu, Luke Whitesell, Susan L. Lindquist
  • Publication number: 20110230551
    Abstract: The present invention provides a novel class of withanolides that have been isolated from W. somnifera under aeroponic conditions or produced semi-synthetically from withanolide natural products. The invention also provides pharmaceutical compositions thereof and methods for using the same in proliferative diseases, neurodegenerative diseases, autoimmune, and inflammatory diseases.
    Type: Application
    Filed: September 15, 2009
    Publication date: September 22, 2011
    Inventors: Leslie Gunatilaka, Ekanayake Mudiyanselage Kithsiri Wijeratne, Ya-Ming Xu, Luke Whitesell, Susan L. Lindquist
  • Patent number: 6002023
    Abstract: The present invention relates to 2-debenzoyl-2-acyl taxol derivatives, analogues thereof and methods for making same.Compounds of the present invention include compounds having the general formula: ##STR1## wherein R.sub.1 is an alkyl or substituted alkyl; R.sub.2 is selected from the group consisting of H and C(O)R.sub.a ; R.sub.3 is selected from the group consisting of H, protecting groups, R.sub.b, and C(O)R.sub.b ; R.sub.4 is selected from the group consisting of H and C(O)R.sub.c, and wherein R.sub.a, R.sub.b, and R.sub.c are independently selected from the group consisting of alkyls, substituted alkyls, alkenyls, alkynyls, aryls, and substituted aryls; provided that R.sub.a is other than phenyl and 3-hydroxyphenyl.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: December 14, 1999
    Assignee: Virginia Tech Intellectural Properties, Inc.
    Inventors: David G. I. Kingston, Ashok Gopal Chaudhary, Milind Moreshwar Gharpure, John Matthew Rimoldi, A.A. Leslie Gunatilaka
  • Patent number: 5703247
    Abstract: Compounds having the general formula: ##STR1## wherein R.sub.1 is an alkyl or substituted alkyl; R.sub.2 is selected from the group consisting of H and C(O)R.sub.a ; R.sub.3 is selected from the group consisting of H, protecting groups, R.sub.b, and C(O)R.sub.b ; R.sub.4 is selected from the group consisting of H and C(O)R.sub.c, and wherein R.sub.a, R.sub.b, and R.sub.c are independently selected from the group consisting of alkyls, substituted alkyls, alkenyls, alkynyls, aryls, and substituted aryls; provided that R.sub.a is other than phenyl and 3-hydroxyphenyl.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: December 30, 1997
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: David G. I. Kingston, Ashok Gopal Chaudhary, Milind Moreshwar Gharpure, John Matthew Rimoldi, A. A. Leslie Gunatilaka
  • Patent number: 5614645
    Abstract: The present invention relates a method of making to 2-debenzoyl-2-acyl taxol derivatives, and analogues thereof.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 25, 1997
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: David G. I. Kingston, Ashok G. Chaudhary, Milind M. Gharpure, John M. Rimoldi, A. A. Leslie Gunatilaka
  • Patent number: 5470866
    Abstract: The natural product cephalomannine can be converted to the important anticancer natural product taxol by a simple process involving the steps of dihydroxylation to give cephalomannine-diols, diol cleavage, benzoylation at the 2'-position and reaction with a 1,2-diamine. The same process when applied to mixtures of taxol and cephalomannine makes it possible to separate taxol from cephalomannine-diols by simple flash-chromatography after the dihydroxylation step. If the benzoylation step is avoided in the above sequence of conversions, the process leads to the free amine (N-debenzoyltaxol). In addition, the selection of an acylating reagent other than that with the benzoyl group for acylation of the free amine (N-debenzoyltaxol), allows the preparation of taxol analogs with other N-acyl substituents.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: November 28, 1995
    Assignee: Virginia Polytechnic Institute and State University
    Inventors: David G. I. Kingston, Anthony A. Molinero, A. A. Leslie Gunatilaka