Patents by Inventor Billy W. Day

Billy W. Day 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: 8541415
    Abstract: Drug candidates for inhibition of HIV-I replication can target Src family kinases (SFK), such as Hck, that interact with Nef protein of the virus. Compounds characterized by such inhibitory activity were identified via an assay for kinase activity of an SFK in a Nef:SFK complex. Illustrative of inhibitors identified using the kinase assay are various 2,3-diaminoquinaxolines and furo[2,3-d]pyrimidines. The inventive inhibitors were found to arrest HIV-I viral replication in vitro.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: September 24, 2013
    Assignee: University of Pittsburgh—of the Commonwealth System of Higher Education
    Inventors: Lori Emert-Sedlak, Toshiaki Kodama, Billy W. Day, Weixiang Dai, Ronald P. Trible, Thomas E. Smithgall
  • Publication number: 20120122992
    Abstract: Compounds that stimulate fibroblast growth factor production, and thus cell growth are provided. Also provided are compositions comprising the compounds and methods of using the compounds. The compounds can be used to treat wounds, to expand cell populations, such as hematopoietic cells, or to grow tissue in vitro, among other uses.
    Type: Application
    Filed: March 19, 2010
    Publication date: May 17, 2012
    Applicant: University of Pittsburgh-Of the Commonwealth Syste
    Inventors: Billy W. Day, Waikok Michael Tsang, Vasiliy N. Korotchenko
  • Publication number: 20110190241
    Abstract: Drug candidates for inhibition of HIV-I replication can target Src family kinases (SFK), such as Hck, that interact with Nef protein of the virus. Compounds characterized by such inhibitory activity were identified via an assay for kinase activity of an SFK in a Nef:SFK complex. Illustrative of inhibitors identified using the kinase assay are various 2,3-diaminoquinaxolines and furo[2,3-d]pyrimidines. The inventive inhibitors were found to arrest HIV-I viral replication in vitro.
    Type: Application
    Filed: May 14, 2009
    Publication date: August 4, 2011
    Inventors: Lori Emert-Sedlak, Toshiaki Kodama, Billy W. Day, Weixiang Dai, Ronald P. Trible, Thomas E. Smithgall
  • Patent number: 7968736
    Abstract: A compound of the following structure: wherein R1 is H, an alkyl group, an aryl group, an alkenyl group, an alkynyl group, or a halogen atom; R2 is H, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; Ra, Rb and Rc are independently an alkyl group or an aryl group; Rd is an alkyl group, an aryl group, an alkoxylalkyl group, —RiSiRaRbRc or a benzyl group, wherein Ri is an alkylene group; Re is an alkyl group, an allyl group, a benzyl group, an aryl group, an alkoxy group, or —NRgRh, wherein Rg and Rh are independently H, an alkyl group or an aryl group; R3 is (CH2)n where n is and integer in the range of 0 to 5, —CH2CH(CH3)—, —CH?CH—, —CH?C(CH3)—, or —C?C—; R4 ?wherein y1 and y2 are 1 and y3, y4 and y5 are independently 0 or 1, Rk1, Rk2, Rk3, Rk4 and Rk5 are independently H, CH3, or OR2a, and Rs1, Rs2, Rs3, and Rs4 are independently H or CH3, wherein R2a is H, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; and R5 is
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: June 28, 2011
    Assignee: University of Pittsburgh—of the Commonwelth Systems of Higher Education
    Inventors: Dennis P. Curran, Youseung Shin, Nakyen Choy, Billy W Day, Raghavan Balachandran, Charitha Madiraju, Tiffany Turner
  • Patent number: 7815894
    Abstract: Compounds, compositions and methods for the diagnosis of Alzheimer's disease. Synthesized Glycerophosphocholine (GPC) may be used as a diagnostic aid to measure progression of Alzheimer's disease. GPC is a membrane phospholipid metabolite that is capable of binding specifically to the ?-turn of beta amyloid (A?) peptide. Compounds including non-radioactive, paramagnetic, and radioactive derivatives of GPC are presented. These compounds possess similar binding properties to original GPC molecules and are useful in medical magnetic resonance imaging and/or positron emission tomography applications. By employing these radiological techniques in conjunction with the compositions of the present invention, the diagnosis and assessment of the progression of Alzheimer's disease may be achieved.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: October 19, 2010
    Inventors: Jay W. Pettegrew, Richard J. McClure, Kanagasabai Panchalingam, Billy W. Day
  • Publication number: 20090036691
    Abstract: A compound of the following structure: wherein R1 is H, an alkyl group, an aryl group, an alkenyl group, an alkynyl group, or a halogen atom; R2 is H, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; Ra, Rb and Rc are independently an alkyl group or an aryl group; Rd is an alkyl group, an aryl group, an alkoxylalkyl group, —RiSiRaRbRc or a benzyl group, wherein Ri is an alkylene group; Re is an alkyl group, an allyl group, a benzyl group, an aryl group, an alkoxy group, or —NRgRh, wherein Rg and Rh are independently H, an alkyl group or an aryl group; R3 is (CH2)n where n is and integer in the range of 0 to 5, —CH2CH(CH3)—, —CH?CH—, —CH?C(CH3)—, or —C?C—; R4 , wherein y1 and y2 are 1 and y3, y4 and y5 are independently 0 or 1, Rk1, Rk2, Rk3, Rk4 and Rk5 are independently H, CH3, or OR2a, and Rs1, Rs2, Rs3, and Rs4 are independently H or CH3, wherein R2a is H, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; and R5 is
    Type: Application
    Filed: September 23, 2008
    Publication date: February 5, 2009
    Inventors: DENNIS P. CURRAN, YOUSEUNG SHIN, NAKYEN CHOY, BILLY W. DAY, RAGHAVAN BALACHANDRAN, CHARITHA MADIRAJU, TIFFANY TURNER
  • Publication number: 20080188651
    Abstract: Dictyostatin and its analogs show great promise as new anticancer agents. The present invention provides dictyostatin analogs, synthetic intermediates for the synthesis of dictyostatin analogs, and synthetic methods for the synthesis of such analogs and intermediates.
    Type: Application
    Filed: January 2, 2008
    Publication date: August 7, 2008
    Inventors: Dennis P. Curran, Youseung Shin, Jean-Hugues Fournier, John Mancuso, Billy W. Day, Arndt Bruckner, Yoshikazu Fukui
  • Patent number: 7321046
    Abstract: Dictyostatin and its analogs show great promise as new anticancer agents. The present invention provides dictyostatin analogs, synthetic intermediates for the synthesis of dictyostatin analogs, and synthetic methods for the synthesis of such analogs and intermediates.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: January 22, 2008
    Assignee: University of Pittsburgh
    Inventors: Dennis P. Curran, Youseung Shin, Jean-Hugues Fournier, John Mancuso, Billy W. Day, Arndt Bruckner, Yoshikazu Fukui
  • Patent number: 7122686
    Abstract: A compound of the following structure: wherein R1 is H, an alkyl group, an aryl group, an alkenyl group, an alkynyl group, or a halogen atom; R2 is H, an alkyl group, an aryl group, a benzyl group, a trityl group, —SiRaRbRc, CH2ORd, or CORe; Ra, Rb and Rc are independently an alkyl group or an aryl group; Rd is an alkyl group, an aryl group, an alkoxylalkyl group, —RiSiRaRbRc or a benzyl group, wherein Ri is an alkylene group; Re is an alkyl group, an allyl group, a benzyl group, an aryl group, an alkoxy group, or —NRgRh, wherein Rg and Rh are independently H, an alkyl group or an aryl group; R3 is (CH2)n where n is and integer in the range of 0 to 5, —CH2CH(CH3)—, —CH?CH—, —CH?C(CH3)—, or —C?C—; R4 is (CH2)p where p is an integer in the range of 4 to 12, —(CHRk1)y1(CHRk2)y2(CHRk3)y3(CHRk4)y4(CHRk5)y5C(Rs1)?C(Rs2)C(Rs3)?C(Rs4)—, —(CHRk1)y1(CHRk2)y2(CHRk3)y3(CHRk4)y4(CHRk5)y5CH(Rs1) CH(Rs2)C(Rs3)?C(Rs4)—, —(CHRk1)y1(CHRk2)y2(CHRk3)y3(CHRk4)y4(CHRk5)y5C(Rs1)?C(Rs2)CH(Rs3)CH(Rs4)—, —(CHRk1)y1(CHRk2)y2(CHR
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: October 17, 2006
    Assignee: University of Pittsburgh
    Inventors: Dennis P. Curran, Youseung Shin, Nakyen Choy, Billy W. Day, Raghavan Balachandran, Charitha Madiraju, Tiffany Turner
  • Publication number: 20040241090
    Abstract: Compounds, compositions and methods for the diagnosis of Alzheimer's disease. Synthesized Glycerophosphocholine (GPC) may be used as a diagnostic aid to measure progression of Alzheimer's disease. GPC is a membrane phospholipid metabolite that is capable of binding specifically to the &bgr;-turn of beta amyloid (A&bgr;) peptide. Compounds including non-radioactive, paramagnetic, and radioactive derivatives of GPC are presented. These compounds possess similar binding properties to original GPC molecules and are useful in medical magnetic resonance imaging and/or positron emission tomography applications. By employing these radiological techniques in conjunction with the compositions of the present invention, the diagnosis and assessment of the progression of Alzheimer's disease may be achieved.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 2, 2004
    Inventors: Jay W. Pettegrew, Richard J. McClure, Kanagasabai Panchalingam, Billy W. Day
  • Publication number: 20040186165
    Abstract: A compound of the following structure: 1
    Type: Application
    Filed: September 5, 2003
    Publication date: September 23, 2004
    Inventors: Dennis P. Curran, Youseung Shin, Nakyen Choy, Billy W. Day, Raghavan Balachandran, Charitha Madiraju, Tiffany Turner
  • Patent number: 6673937
    Abstract: Oxidative cyclization of bis-naphthyl ethers allows concise total syntheses of palmarumycin CP1 and deoxypreussomerin A in 8-9 steps and 15-35% overall yield from 5-hydroxy-8-methoxy-1-tetralone. A small library of palmarumycin analogs was created. Biological evaluation of these naphthoquinone spiroketals against MCF-7 and MDA-MB-231 human breast cancer cells revealed several low-micromolar growth inhibitors. A number of the analogs inhibit the thioredoxin—thioredoxin reductase system.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: January 6, 2004
    Assignee: The University of Pittsburgh
    Inventors: John S. Lazo, Peter Wipf, Billy W. Day
  • Patent number: 6392055
    Abstract: The present invention provides an efficient synthetic strategy for the preparation of analogs that incorporate important structural elements of the marine natural product curacin A, the compositions and various uses of the compositions. The most active of these compounds at nanomolar concentrations inhibit tubulin polymerization, show growth inhibition activity, inhibited colchicines binding to tubulin and block mitotic progression. The compounds of the present invention represent some of the most potent synthetic curacin A analogs synthesized, with an activity profile rivaling that of the natural product despite the simplified structure, greater water solubility, and increased chemical stability.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: May 21, 2002
    Assignee: The University of Pittsburgh
    Inventors: Peter Wipf, Jonathan T. Reeves, Billy W. Day, Raghavan Balachandran
  • Publication number: 20020049221
    Abstract: Oxidative cyclization of bis-naphthyl ethers allows concise total syntheses of palmarumycin CP, and deoxypreussomerin A in 8-9 steps and 15-35% overall yield from 5-hydroxy-8-methoxy-1 -tetralone. A small library of palmarumycin analogs was created. Biological evaluation of these naphthoquinone spiroketals against MCF-7 and MDA-MB-23 1 human breast cancer cells revealed several low-micromolar growth inhibitors. A number of the analogs inhibit the thioredoxin -thioredoxin reductase system.
    Type: Application
    Filed: July 19, 2001
    Publication date: April 25, 2002
    Inventors: John S. Lazo, Peter Wipf, Billy W. Day
  • Publication number: 20020037918
    Abstract: The present invention provides an efficient synthetic strategy for the preparation of analogs that incorporate important structural elements of the marine natural product curacin A, the compositions and various uses of the compositions. The most active of these compounds at nanomolar concentrations inhibit tubulin polymerization, show growth inhibition activity, inhibited colchicines binding to tubulin and block mitotic progression. The compounds of the present invention represent some of the most potent synthetic curacin A analogs synthesized, with an activity profile rivaling that of the natural product despite the simplified structure, greater water solubility, and increased chemical stability.
    Type: Application
    Filed: July 19, 2001
    Publication date: March 28, 2002
    Inventors: Peter Wipf, Jonathan T. Reeves, Billy W. Day, Raghavan Balachandran
  • Patent number: 5015666
    Abstract: Triarylcyclopropane derivatives in which one or more of the aryl groups includes a hydroxy as a substituted or unsubstituted or alkoxy or side chain substituent. The compounds are useful as antiestrogens and anti-tumor agents.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: May 14, 1991
    Assignee: Board of Reagents of the University of Oklahoma
    Inventors: Robert A. Magarian, Joseph T. Pento, Billy W. Day