Patents by Inventor Helen Tsenwhei Lee

Helen Tsenwhei Lee 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: 8623883
    Abstract: This invention provides quinazoline compounds of the formula: wherein: R1 is halo; R2 is H or halo; R3 is a) C1-C3 alkyl, optionally substituted by halo; or b) —(CH2)n-morpholino, —(CH2)n-piperidine, —(CH2)n-piperazine, —(CH2)n-piperazine-N(C1-C3 alkyl), —(CH2)n-pyrrolidine, or —(CH2)n-imidazole; n is 1 to 4; R4 is —(CH2)m-Het; Het is morpholine, piperidine, piperazine, piperazine-N(C1-C3 alkyl), imidazole, pyrrolidine, azepane, 3,4-dihydro-2H-pyridine, or 3,6-dihydro-2H-pyridine, each optionally substituted by alkyl, halo, OH, NH2, NH(C1-C3 alkyl) or N(C1-C3 alkyl)2; m is 1-3; and X is O, S or NH; or a pharmaceutically acceptable salt thereof, as well as processes and intermediate compounds for making them, useful pharmaceutical compositions and methods of using the compounds in the treatment of proliferative diseases.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: January 7, 2014
    Assignee: Warner-Lambert Company LLC
    Inventors: Stephen Alan Fakhoury, Helen Tsenwhei Lee, Jessica Elizabeth Reed, Kevin Matthew Schlosser, Karen Elaine Sexton, Haile Tecle, Roy Thomas Winters
  • Publication number: 20130274275
    Abstract: This invention provides quinazoline compounds of the formula: wherein: R1 is halo; R2 is H or halo; R3 is a) C1-C3 alkyl, optionally substituted by halo; or b) —(CH2)n-morpholino, —(CH2)n-piperidine, —(CH2)n-piperazine, —(CH2)n-piperazine-N(C1-C3 alkyl), —(CH2)n-pyrrolidine, or —(CH2)n-imidazole; n is 1 to 4; R4 is —(CH2)m-Het; Het is morpholine, piperidine, piperazine, piperazine-N(C1-C3 alkyl), imidazole, pyrrolidine, azepane, 3,4-dihydro-2H-pyridine, or 3,6-dihydro-2H-pyridine, each optionally substituted by alkyl, halo, OH, NH2, NH(C1-C3 alkyl) or N(C1-C3 alkyl)2; m is 1-3; and X is O, S or NH; or a pharmaceutically acceptable salt thereof, as well as processes and intermediate compounds for making them, useful pharmaceutical compositions and methods of using the compounds in the treatment of proliferative diseases.
    Type: Application
    Filed: June 10, 2013
    Publication date: October 17, 2013
    Inventors: Stephen Alan FAKHOURY, Helen Tsenwhei LEE, Jessica Elizabeth REED, Kevin Matthew SCHLOSSER, Karen Elaine SEXTON, Haile TECLE, Roy Thomas WINTERS
  • Patent number: 8466165
    Abstract: This invention provides quinazoline compounds of the formula: wherein: R1 is halo; R2 is H or halo; R3 is a) C1-C3 alkyl, optionally substituted by halo; or b) —(CH2)n-morpholino, —(CH2)n-piperidine, —(CH2)n-piperazine, —(CH2)n-piperazine-N(C1-C3 alkyl), —(CH2)n-pyrrolidine, or —(CH2)n-imidazole; n is 1 to 4; R4 is —(CH2)m-Het; Het is morpholine, piperidine, piperazine, piperazine-N(C1-C3 alkyl), imidazole, pyrrolidine, azepane, 3,4-dihydro-2H-pyridine, or 3,6-dihydro-2H-pyridine, each optionally substituted by alkyl, halo, OH, NH2, NH(C1-C3 alkyl) or N(C1-C3 alkyl)2; m is 1-3; and X is O, S or NH; or a pharmaceutically acceptable salt thereof, as well as processes and intermediate compounds for making them, useful pharmaceutical compositions and methods of using the compounds in the treatment of proliferative diseases.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: June 18, 2013
    Assignee: Warner-Lambert Company LLC
    Inventors: Stephen Alan Fakhoury, Helen Tsenwhei Lee, Jessica Elizabeth Reed, Kevin Matthew Schlosser, Karen Elaine Sexton, Haile Tecle, Roy Thomas Winters
  • Patent number: 7772243
    Abstract: This invention provides quinazoline compounds of the formula: wherein: R1 is halo; R2 is H or halo; R3 is a) C1-C3 alkyl, optionally substituted by halo; or b) —(CH2)n-morpholino, —(CH2)n-piperidine, —(CH2)n-piperazine, —(CH2)n—-piperazine-N(C1-C3 alkyl), —(CH2)n-pyrrolidine, or —(CH2)n-imidazole; n is 1 to 4; R4 is —(CH2)m-Het; Het is morpholine, piperidine, piperazine, piperazine-N(C1-C3 alkyl), imidazole, pyrrolidine, azepane, 3,4-dihydro-2H-pyridine, or 3,6-dihydro-2H-pyridine, each optionally substituted by alkyl, halo, OH, NH2, NH(C1-C3 alkyl) or N (C1-C3 alkyl)2; m is 1-3; and X is O, S or NH; or a pharmaceutically acceptable salt thereof, as well as processes and intermediate compounds for making them, useful pharmaceutical compositions and methods of using the compounds in the treatment of proliferative diseases.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: August 10, 2010
    Assignee: Warner-Lambert Company LLC
    Inventors: Stephen Alan Fakhoury, Helen Tsenwhei Lee, Jessica Elizabeth Reed, Kevin Matthew Schlosser, Karen Elaine Sexton, Haile Tecle, Roy Thomas Winters
  • Publication number: 20100190977
    Abstract: This invention provides quinazoline compounds of the formula: wherein: R1 is halo; R2 is H or halo; R3 is a) C1-C3 alkyl, optionally substituted by halo; or b) —(CH2)n-morpholino, —(CH2)n-piperidine, —(CH2)n-piperazine, —(CH2)n-piperazine-N(C1-C3 alkyl), —(CH2)n-pyrrolidine, or —(CH2)n-imidazole; n is 1 to 4; R4 is —(CH2)m-Het; Het is morpholine, piperidine, piperazine, piperazine-N(C1-C3 alkyl), imidazole, pyrrolidine, azepane, 3,4-dihydro-2H-pyridine, or 3,6-dihydro-2H-pyridine, each optionally substituted by alkyl, halo, OH, NH2, NH(C1-C3 alkyl) or N(C1-C3 alkyl)2; m is 1-3; and X is O, S or NH; or a pharmaceutically acceptable salt thereof, as well as processes and intermediate compounds for making them, useful pharmaceutical compositions and methods of using the compounds in the treatment of proliferative diseases.
    Type: Application
    Filed: April 5, 2010
    Publication date: July 29, 2010
    Inventors: Stephen Alan Fakhoury, Helen Tsenwhei Lee, Jessica Elizabeth Reed, Kevin Matthew Schlosser, Karen Elaine Sexton, Haile Tecle, Roy Thomas Winters
  • Publication number: 20040259926
    Abstract: The present invention provides benzo[b]thiophenes of Formula I: 1
    Type: Application
    Filed: June 3, 2004
    Publication date: December 23, 2004
    Inventors: Michelle M. Bruendl, Michael Connolly, Annise Paige Goodman, Rocco Dean Gogliotti, Helen Tsenwhei Lee, Mark Stephen Plummer, Karen Elaine Sexton, Aurash B. Shahripour, Greg Reichard, Melean Visnick, Michael William Wilson
  • Publication number: 20040248954
    Abstract: The present invention provides benzo[b]thiophenes of Formula I: 1
    Type: Application
    Filed: June 3, 2004
    Publication date: December 9, 2004
    Inventors: Rocco Dean Gogliotti, Helen Tsenwhei Lee, Karen Elaine Sexton, Melean Visnick
  • Publication number: 20040248953
    Abstract: The present invention provides benzo[b]thiophenes of Formula I: 1
    Type: Application
    Filed: June 3, 2004
    Publication date: December 9, 2004
    Inventors: Rocco Dean Gogliotti, Helen Tsenwhei Lee, Karen Elaine Sexton, Melean Visnick
  • Patent number: 6780883
    Abstract: The present invention provides compounds having the Formula I The present invention also provides pharmaceutical compositions comprising a compound of Formula I and methods of treatment of atherosclerosis, obesity, restenosis, coronary heart disease, hyperlipoproteinemia, hypercholesterolemia, and hypertriglyceridemia.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: August 24, 2004
    Assignee: Warner-Lambert Company
    Inventors: Richard John Booth, Helen Tsenwhei Lee, Jason Keith Pontrello, Randy Ranjee Ramharack, Bruce David Roth
  • Publication number: 20030171377
    Abstract: The present invention provides compounds of Formula (I): 1
    Type: Application
    Filed: August 22, 2002
    Publication date: September 11, 2003
    Inventors: Christopher Franklin Bigge, Alexander James Bridges, Agustin Casimiro-Garcia, Stephen Alan Fakhoury, Helen Tsenwhei Lee, Jessica Reed, Robert Schaum, Kevin Matthew Schlosser, Karen Sexton, Hairong Zhou
  • Patent number: 6602886
    Abstract: The small nonpeptides of the instant invention are tachykinin antagonists. The compounds are highly selective and functional NK3 antagonists expected to be useful in the treatment of pain, depression, anxiety, panic, schizophrenia, neuralgia, addiction disorders, inflammatory diseases, gastrointestinal disorders, vascular disorders, and neuropathological disorders.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: August 5, 2003
    Assignee: Warner-Lambert Company
    Inventors: Michael Huai Gu Chen, Fu-Zon Chung, Helen Tsenwhei Lee
  • Publication number: 20030073838
    Abstract: The small nonpeptides of the instant invention are tachykinin antagonists. The compounds are highly selective and functional NK3 antagonists expected to be useful in the treatment of pain, depression, anxiety, panic, schizophrenia, neuralgia, addiction disorders, inflammatory diseases, gastrointestinal disorders, vascular disorders, and neuropathological disorders.
    Type: Application
    Filed: June 21, 2002
    Publication date: April 17, 2003
    Inventors: Michael Huai Gu Chen, Fu-Zon Chung, Helen Tsenwhei Lee
  • Patent number: 6506751
    Abstract: Disclosed are compounds of the Formula I wherein: Z is C or nothing, provided that when Z is nothing, R3 and R4 are nothing; A is S, S═O or O═S═O; R1 and R2 are independently hydrogen, lower alkyl, halogen, hydroxy or lower alkoxy, (un)substituted aryl, (un)substituted arylalkyl, (un)substituted heteroaryl or(un)substituted heteroarylakyl; R3 and R4 independently represent hydrogen, lower alkyl, cycloalkyl, aminoalkyl, mono- or dialkylaminoalkyl, (un)substituted aryl or (un)substituted heteroaryl; R5 represents a (un)substituted carbocyclic group containing from 3-7 members, up to two of which members are optionally hetero atoms; or R5 is (CR6R7)—(CH2)n—XR8R9; X is S or N; R6, R7, R8, R9, and n are as defined in the specification. The compounds are useful in the treatment and prevention of the AIDS virus. Intermediates useful in the preparation of the final products, pharmaceutical compositions containing the final products are also taught.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: January 14, 2003
    Assignee: Millennium Pharmaceuticals, Inc.
    Inventors: Stephanie Elizabeth Ault Justus, Helen Tsenwhei Lee, Jason Keith Pontrello, Bruce David Roth, Karen Elaine Sexton, Michael William Wilson
  • Publication number: 20020156281
    Abstract: The present invention provides compounds having the Formula I 1
    Type: Application
    Filed: December 12, 2001
    Publication date: October 24, 2002
    Inventors: Richard John Booth, Helen Tsenwhei Lee, Jason Keith Pontrello, Randy Ranjee Ramharack, Bruce David Roth
  • Patent number: 6458815
    Abstract: The present invention provides compounds having the Formula I The present invention also provides methods of treating or preventing atherosclerosis, coronary heart disease, and restenosis using the compounds of Formula I, and pharmaceutical compositions comprising the compounds of Formula I.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: October 1, 2002
    Assignee: Warner-Lambert Company
    Inventors: Helen Tsenwhei Lee, Randy Ranjee Ramharack, Bruce David Roth, Karen Elaine Sexton
  • Patent number: 6433178
    Abstract: The small nonpeptides of the instant invention are tachykinin antagonists. The compounds are highly selective and functional NK3 antagonists expected to be useful in the treatment of pain, depression, anxiety, panic, schizophrenia, neuralgia, addiction disorders, inflammatory diseases, gastrointestinal disorders, vascular disorders, and neuropathological disorders.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: August 13, 2002
    Assignee: Warner-Lambert Company
    Inventors: Michael Huai Gu Chen, Fu-Zon Chung, Helen Tsenwhei Lee
  • Publication number: 20010037023
    Abstract: The small nonpeptides of the instant invention are tachykinin antagonists. The compounds are highly selective and functional NK3 antagonists expected to be useful in the treatment of pain, depression, anxiety, panic, schizophrenia, neuralgia, addiction disorders, inflammatory diseases, gastrointestinal disorders, vascular disorders, and neuropathological disorders.
    Type: Application
    Filed: June 4, 2001
    Publication date: November 1, 2001
    Inventors: Michael Huai Gu Chen, Fu-Zon Chung, Helen Tsenwhei Lee
  • Patent number: 6284795
    Abstract: The present invention provides compounds having the Formula I The present invention also provides methods of treating or preventing atherosclerosis, coronary heart disease, and restenosis using the compounds of Formula I, and pharmaceutical compositions comprising the compounds of Formula I.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: September 4, 2001
    Assignee: Warner-Lambert Company
    Inventors: Helen Tsenwhei Lee, Randy Ranjee Ramharack, Bruce David Roth, Karen Elaine Sexton
  • Publication number: 20010018523
    Abstract: The present invention provides compounds having the Formula I 1
    Type: Application
    Filed: April 13, 2001
    Publication date: August 30, 2001
    Inventors: Helen Tsenwhei Lee, Randy Ranjee Ramharack, Bruce David Roth, Karen Elaine Sexton
  • Patent number: 6093744
    Abstract: The instant invention is new compounds of Formula I ##STR1## their use as cerebrovascular agents in diseases such as stroke, peripheral vascular disease, restenosis, and as agents for regulating plasma cholesterol concentrations, for treating hypercholesterolemia and atherosclerosis, and for lowering the serum or plasma level of Lp(a). A pharmaceutical composition is also claimed.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: July 25, 2000
    Assignee: Warner-Lambert Company
    Inventors: Helen Tsenwhei Lee, Joseph Armand Picard, William Howard Roark, Bruce David Roth, Drago Robert Sliskovic