Patents by Inventor Dan Niculescu-Duvaz

Dan Niculescu-Duvaz 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: 7951819
    Abstract: The present invention pertains to certain imidazo[4,5-b]pyridin-2-one and oxazolo[4,5 b]pyridin-2-one compounds and analogs thereof, which, inter alia, inhibit RAF (e.g., B RAF) activity, inhibit cell proliferation, treat cancer, etc. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit RAF (e.g., B-RAF) activity, to inhibit receptor tyrosine kinase (RTK) activity, to inhibit cell proliferation, and in the treatment of diseases and conditions that are ameliorated by the inhibition of RAF, RTK, etc., proliferative conditions such as cancer (e.g., colorectal cancer, melanoma), etc.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: May 31, 2011
    Assignees: Cancer Research Technology Limited, The Institute of Cancer Research: Royal Cancer Hospital, Astex Therapeutics Limited
    Inventors: Dan Niculescu-Duvaz, Caroline Joy Springer, Richard Malcolm Marais, Harmen Dijkstra, Delphine Menard, Ion Niculescu-Duvaz, Lawrence Davies, Arnaud Nourry
  • Publication number: 20110053946
    Abstract: The present invention pertains generally to the field of therapeutic compounds for treating proliferative disorders, cancer, etc., and more specifically to certain aryl-quinolyl compounds, as described herein, which, inter alia, inhibit RAF (e.g., B-RAF) activity. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit RAF (e.g., BRAF) activity, to inhibit receptor tyrosine kinase (RTK) activity, to inhibit cell proliferation, and in the treatment of diseases and disorders that are ameliorated by the inhibition of RAF, RTK, etc., proliferative disorders such as cancer (e.g., colorectal cancer, melanoma), etc.
    Type: Application
    Filed: April 27, 2009
    Publication date: March 3, 2011
    Applicants: CANCER RESEARCH TECHNOLOGY LIMITED, INSTITUTE OF CANCER RESEARCH: ROYAL CANCER HOSPITAL (THE)
    Inventors: Ion Niculescu-Duvaz, Alfonso Zambon, Dan Niculescu-Duvaz, Steven Whittaker, Richard Marais, Caroline Joy Springer
  • Publication number: 20100298320
    Abstract: The present invention pertains generally to the field of therapeutic compounds for treating proliferative disorders, cancer, etc., and more specifically to certain pyrido[2,3-b]pyrazin-8-substituted compounds, as described herein, which, inter alia, inhibit RAF (e.g., B-RAF) activity. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit RAF (e.g., BRAF) activity, to inhibit receptor tyrosine kinase (RTK) activity, to inhibit cell proliferation, and in the treatment of diseases and disorders that are ameliorated by the inhibition of RAF, RTK, etc., proliferative disorders such as cancer (e.g., colorectal cancer, melanoma), etc.
    Type: Application
    Filed: December 19, 2008
    Publication date: November 25, 2010
    Applicants: CANCER RESEARCH TECHNOLOGY LIMITED, INSTITUTE OF CANCER RESEARCH: ROYAL CANCER HOSPITAL (THE)
    Inventors: Caroline Joy Springer, Dan Niculescu-Duvaz, Ion Niculescu-Duvaz, Richard Marais, Bartholomeus Marinus Josephus Marie Suijkerbuijk, Alfonso Zambon, Arnaud Nourry, Delphine Menard
  • Publication number: 20090325945
    Abstract: The present invention pertains to certain imidazo[4,5-b]pyridin-2-one and oxazolo[4,5 b]pyridin-2-one compounds and analogs thereof, which, inter alia, inhibit RAF (e.g., B RAF) activity, inhibit cell proliferation, treat cancer, etc.
    Type: Application
    Filed: April 26, 2007
    Publication date: December 31, 2009
    Inventors: Dan Niculescu-Duvaz, Caroline Joy Springer, Richard Malcolm Marais, Harmen Dijkstra, Delphine Menard, Ion Niculescu-Duvaz, Lawrence Davies, Arnaud Nourry
  • Patent number: 7625922
    Abstract: The present invention pertains to certain imidazo[4,5-b]pyridin-2-one and oxazolo[4,5-b]pyridin-2-one compounds and analogs thereof, which, inter alia, inhibit RAF (e.g., B-RAF) activity, inhibit cell proliferation, treat cancer, etc.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: December 1, 2009
    Assignees: Cancer Research Technology Limited, The Institute of Cancer Research: Royal Cancer Hospital, Astex Therapeutics Limited
    Inventors: Dan Niculescu-Duvaz, Caroline Joy Springer, Adrian Liam Gill, Richard David Taylor, Richard Malcol Marais, Harmen Dijkstra, Catherine Gaulon, Delphine Menard, Esteban Roman Vela
  • Publication number: 20070287838
    Abstract: The present invention pertains to certain imidazo[4,5-b]pyridin-2-one and oxazolo[4,5-b]pyridin-2-one compounds and analogs thereof, which, inter alia, inhibit RAF (e.g., B-RAF) activity, inhibit cell proliferation, treat cancer, etc.
    Type: Application
    Filed: October 21, 2005
    Publication date: December 13, 2007
    Applicants: CANCER RESEARCH TECHNOLOGY LIMITED, INSTITUE OF CANCER RESEARCH: ROYAL CANCER HOSPITAL (THE), ASTEX THERAPEUTICS LIMITED
    Inventors: Dan Niculescu-Duvaz, Caroline Springer, Adrian Gill, Richard Taylor, Richard Marais, Hermen Dijkstra, Catherine Gaulon, Delphine Menard, Esteban Roman Vela
  • Publication number: 20060069154
    Abstract: This invention pertains to certain enzyme (CPG2) activated self-immolative nitrogen mustard prodrugs, which are useful in enzyme prodrug therapy (EPT), such as ADEPT and GDEPT, for the treatment of proliferative conditions, such as cancer, and which have the following formula: wherein: RN is independently C1-7alkyl; X1 is independently —I, —Br, or —Cl; X2 is independently —I, —Br, or —Cl; the group —N(CH2CH2X1)(CH2CH2X2) is independently attached at the 2-position or at the 4-position; each RG is independently —H or an ester substituent; n is independently an integer from 0 to 4; each RP, if present, is independently a phenyl substituent; m is independently an integer from 0 to 4; each RM, if present, is independently a mustard substituent; and pharmaceutically acceptable salts, solvates, amides, and esters thereof.
    Type: Application
    Filed: September 1, 2003
    Publication date: March 30, 2006
    Inventors: Caroline Springer, Ion Niculescu-Duvaz, Dan Niculescu-Duvaz
  • Patent number: 6916949
    Abstract: This invention pertains to novel methods for the synthesis of certain nitrogen mustard prodrugs, such as N-{4-[N,N-bis(2-haloethylamino)-phenoxycarbonyl}-L-glutamic acid: wherein: X2 is a halo group, and is —F, —Cl, —Br, or —I; n is an integer from 0 to 4; and, each RA is an aryl substituent. The methods comprise, at least, the steps of: glutamate conjugation (GC); silyloxy deprotection (SD); and, sulfonic esterification (SU). Certain preferred methods comprise the steps of: amine substitution (AS); silyloxy protection (SP); phenolic deprotection (PD); activation (AC); glutamate conjugation (GC); silyloxy deprotection (SD); sulfonic estenfication (SU); halogenation (HL); glutamate deprotection (GD); and glutamic acid protection (GP).
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: July 12, 2005
    Assignee: Cancer Research Technology Limited
    Inventors: Caroline Joy Springer, Dan Niculescu-Duvaz
  • Publication number: 20040087813
    Abstract: This invention pertains to novel methods for the synthesis of certain nitrogen mustard prodrugs, such as N-[4-[N,N-bis(2-haloethylamino)-phenoxycarbonyl]-L-glutamic acid: wherein: X2 is a halo group, and is —F, —Cl, —Br, or —I; n is an integer from 0 to 4; and, each RA is an aryl substituent. The methods comprise, at least, the steps of: glutamate conjugation (GC); silyloxy deprotection (SD); and, sulfonic esterification (SU). Certain preferred methods comprise the steps of: amine substitution (AS); silyloxy protection (SP); phenolic deprotection (PD); activation (AC); glutamate conjugation (GC); silyloxy deprotection (SD); sulfonic esterification (SU); halogenation (HL); glutamate deprotection (GD); and glutamic acid protection (GP).
    Type: Application
    Filed: July 29, 2003
    Publication date: May 6, 2004
    Inventors: Caroline Joy Springer, Dan Niculescu-Duvaz