Patents by Inventor Jin-Jun Liu

Jin-Jun Liu 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: 20060084804
    Abstract: Quinazoline thiazolinone derivatives which demonstrate CDK1 antiproliferative activity and are useful as anti-cancer agents.
    Type: Application
    Filed: October 5, 2005
    Publication date: April 20, 2006
    Inventors: Li Chen, Shaoqing Chen, Jin-Jun Liu
  • Publication number: 20060079511
    Abstract: The present invention provides compounds of formula I wherein R1, R2, R3, R4, and R5 are described herein. The invention also provides syntheses for preparation of such compounds and pharmaceutical compositions containing them. The invention further provides methods for inhibiting kinases, in particular CDK2, for inhibiting angiogenesis, and for treating cancers, in particular breast, colon, prostate, and lung cancer.
    Type: Application
    Filed: October 5, 2005
    Publication date: April 13, 2006
    Inventors: Jin-Jun Liu, Kin-Chun Luk, Giacomo Pizzolato, Yi Ren, Kshitij Thakkar, Peter Wovkulich, Zhuming Zhang
  • Patent number: 6916923
    Abstract: Disclosed is a novel method for synthesizing pyrazolobenzodiazepines of formula I using intermediates of formula Pyrazolobenzodiazepines of formula I are useful in the treatment and control of solid tumors.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: July 12, 2005
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Qingjie Ding, Jin-Jun Liu, Giacomo Pizzolato, Peter Michael Wovkulich
  • Patent number: 6838558
    Abstract: Disclosed are novel pyrazolobenzodiazepines having the formula These compounds are useful in the preparation of the pyrazolobenzodiazepines of formula I, which are useful in the treatment and control of solid tumors.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: January 4, 2005
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Qingjie Ding, Jin-Jun Liu, Giacomo Pizzolato, Chung-Chen Wei, Peter Michael Wovkulich
  • Publication number: 20040204427
    Abstract: Disclosed are novel pyrimido compounds that are selective inhibitors of both KDR and FGFR kinases. These compounds and their pharmaceutically acceptable salts are anti-proliferative agents useful in the treatment or control of solid tumors, in particular breast, colon, lung and prostate tumors. Also disclosed are pharmaceutical compositions containing these compounds and methods of treating cancer.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 14, 2004
    Inventors: Yi Chen, Apostolos Dermatakis, Jin-Jun Liu, Kin-Chun Luk, Christophe Michoud, Pamela Loreen Rossman
  • Publication number: 20040198976
    Abstract: Disclosed is a novel method for synthesizing pyrazolobenzodiazepines of formula I 1
    Type: Application
    Filed: April 19, 2004
    Publication date: October 7, 2004
    Inventors: Qingjie Ding, Jin-Jun Liu, Giacomo Pizzolato, Peter Michael Wovkulich
  • Publication number: 20040122029
    Abstract: Disclosed are novel dihydropridinone compounds that are selective inhibitors of both KDR and FGFR kinases. These compounds and their pharmaceutically acceptable salts are anti-proliferative agents useful in the treatment or control of solid tumors, in particular breast, colon lung and prostate tumors. Also, disclosed are pharmaceutical compositions containing these compounds and methods of treating cancer.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 24, 2004
    Inventors: Jin-Jun Liu, Kin-Chun Luk
  • Publication number: 20040038995
    Abstract: Disclosed are novel pyrimido compounds that are selective inhibitors of both KDR an FGFR kinases and are selective against LCK. These compounds and their pharmaceutically acceptable salts are anti-proliferative agents useful in the treatment or control of solid tumors, in particular breast, colon, lung and prostate tumors. Also disclosed are pharmaceutical compositions containing these compounds and methods of treating cancer.
    Type: Application
    Filed: July 21, 2003
    Publication date: February 26, 2004
    Inventors: Yi Chen, Andrzej Robert Daniewski, William Harris, Marek Michal Kabat, Emily Aijun Liu, Jin-Jun Liu, Kin-Chun Luk, Christophe Michoud
  • Patent number: 6531598
    Abstract: Disclosed are novel naphthostyrils of formula These compounds inhibit cyclin-dependent kinases (CDKs), in particular CDK2. These compounds and their pharmaceutically acceptable salts and esters are anti-proliferative agents useful in the treatment or control of cell proliferative disorders, in particular cancer. Also disclosed are pharmaceutical compositions containing such compounds, methods for the treatment and/or prevention of cancer using such compositions, and intermediates useful in the preparation of the compounds of formula I.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: March 11, 2003
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Apostolos Dermatakis, Jin-Jun Liu, Kin-Chun Luk
  • Patent number: 6504034
    Abstract: Disclosed are novel naphthostyrils of formula These compounds inhibit cyclin-dependent kinases (CDKs), in particular CDK2. These compounds and their pharmaceutically acceptable salts and esters are anti-proliferative agents useful in the treatment or control of cell proliferative disorders, in particular cancer. Also disclosed are pharmaceutical compositions containing such compounds, methods for the treatment and/or prevention of cancer using such compositions, and intermediates useful in the preparation of the compounds of formula I.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: January 7, 2003
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Yi Chen, Apostolos Dermatakis, Frederick Martin Konzelmann, Jin-Jun Liu, Kin-Chun Luk
  • Publication number: 20020183514
    Abstract: Disclosed are novel pyrazolobenzodiazepines having the formula 1
    Type: Application
    Filed: April 15, 2002
    Publication date: December 5, 2002
    Inventors: Qingjie Ding, Jin-Jun Liu, Vincent Stewart Madison, Giacomo Pizzolato, Chung-Chen Wei, Peter Michael Wovkulich
  • Publication number: 20020147343
    Abstract: Disclosed are novel naphthostyrils of formula 1
    Type: Application
    Filed: January 10, 2002
    Publication date: October 10, 2002
    Inventors: Yi Chen, Apostolos Dermatakis, Frederick Martin Konzelmann, Jin-Jun Liu, Kin-Chun Luk
  • Patent number: 6440959
    Abstract: Disclosed are novel pyrazolobenzodiazepines having the formula and the pharmaceutically acceptable salts thereof, wherein R1, R2, R3 and R4 are as defined herein. These compounds inhibit cyclin-dependent kinases (CDKs), in particular CDK2. These compounds and their pharmaceutically acceptable salts, and prodrugs of said compounds, are anti-proliferative agents useful in the treatment or control of cell proliferative disorders, in particular cancer, more particularly, the treatment or control of breast, colon, lung and prostate tumors. Also disclosed are pharmaceutical compositions containing the compounds of formula I as well as intermediates useful in the preparation of the compounds of formula I.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: August 27, 2002
    Assignee: Hoffman-La Roche Inc.
    Inventors: Qingjie Ding, Jin-Jun Liu, Vincent Stewart Madison, Giacomo Pizzolato, Chung-Chen Wei, Peter Michael Wovkulich
  • Patent number: 6303793
    Abstract: Disclosed are novel 4-alkenyl- and 4-alkynyl oxindoles having the formula and the pharmaceutically acceptable salts thereof, wherein R1, R2, R3, a, b, and X are as defined herein. These compounds inhibit cyclin-dependent kinases (CDKs), in particular CDK2. These compounds and their pharmaceutically acceptable salts, and prodrugs of said compounds, are anti-proliferative agents useful in the treatment or control of cell proliferative disorders, in particular cancer, more particularly, the treatment or control of breast and colon tumors. Also disclosed are pharmaceutical compositions containing the compounds of formula I and II as well as intermediates useful in the preparation of the compounds of formula I and II.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: October 16, 2001
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Yi Chen, Apostolos Dermatakis, Jin-Jun Liu, Kin-Chun Luk
  • Patent number: 6130239
    Abstract: Disclosed are novel 4-alkenyl- and 4-alkynyl oxindoles having the formula ##STR1## and the pharmaceutically acceptable salts thereof, wherein R.sup.1, R.sup.2, R.sup.3, a, b, and X are as defined herein. These compounds inhibit cyclin-dependent kinases (CDKs), in particular CDK2. These compounds and their pharmaceutically acceptable salts, and prodrugs of said compounds, are anti-proliferative agents useful in the treatment or control of cell proliferative disorders, in particular cancer, more particularly, the treatment or control of breast and colon tumors. Also disclosed are pharmaceutical compositions containing the compounds of formula I and II as well as intermediates useful in the preparation of the compounds of formula I and II.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: October 10, 2000
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Yi Chen, Wendy Lea Corbett, Apostolos Dermatakis, Jin-Jun Liu, Kin-Chun Luk, Paige E. Mahaney, Steven Gregory Mischke
  • Patent number: 5461169
    Abstract: The total synthesis of taxol employs a convergent synthetic plan. The synthetic plan may also be employed to produce a large number of taxol analogs. Taxol analogs having skeletal extensions are inaccessible by modification of the natural product but are readily produced by employing the convergent synthetic plan herein.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: October 24, 1995
    Assignee: The Scripps Research Institute
    Inventors: K. C. Nicolaou, Zhen Yang, Jin-Jun Liu, Hiroaki Ueno, Philippe G. Nantermet
  • Patent number: 5274137
    Abstract: A taxol intermediate selected from the group consisting of: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each selected from hydrogen, hydroxyl, or a protected hydroxyl; or R.sup.1 and R.sup.2 together form an oxo or a protected oxo; R.sup.3 is formyl, a protected formyl, or --CH(X)--OY wherein X is hydrogen or a monovalent metal and Y is hydrogen or a hydroxyl protecting group; and R.sup.4 and R.sup.5 are different and each selected from chloro or cyano; or R.sup.4 and R.sup.5 together form an oxo or a protected oxo, with the proviso that R.sup.1 and R.sup.2 are not both hydroxyl; R.sup.6 is hydroxyl or a protected hydroxyl; R.sup.7 is hydrogen, hydroxyl, or a protected hydroxyl; R.sup.8 is carboxyl, hydroxylmethyl, or a protected hydroxylmethyl; or R.sup.7 and R.sup.8 when taken together with carbon atoms 3 and 4, form an oxetane ring; or R.sup.6 and R.sup.8 when taken together with carbon atoms 1 and 4, form a bridged lactone; R.sup.9 is hydrogen or a hydroxyl protecting group; R.sup.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: December 28, 1993
    Inventors: K. C. Nicolaou, Chan-Kou Hwang, Erik J. Sorensen, Jin-Jun Liu