Patents by Inventor Xichen Lin

Xichen Lin 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: 7479558
    Abstract: The present invention is directed to a novel method of preparing of 2,4,8-trisubstituted pyrido[2,3-d]pyrimidin-7-one pharmacophores of Formula (II) or (IIa) wherein G1 is CH2 or NH: G2 is CH or nitrogen; Rx is chloro, bromo, iodo, or O—S(O)2CF3; Rg is a C1-10alkyl; m is 0, or an integer having a value of 1, or 2; R3 is a C1-10 alkyl, C3-7 cycloalkyl, C3-7 cycloalkyl C1-10 alkyl, aryl, arylC1-10 alkyl, heteroaryl, heteroarylC1-10 alkyl, heterocyclic or a heterocyclylC1-10 alkyl moiety, and wherein each of these moieties may be optionally substituted. which comprises reacting a compound of the formula: wherein Ry is chloro, bromo, iodo, O—S(O)2CF3; and Rg is a C1-10 alkyl; with a olefin forming reagent in a suitable base to yield a compound of Formula (II), or (IIa) wherein m=0 and oxidizing the sulphur as necessary or desired.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: January 20, 2009
    Assignee: Glaxo Group Limited
    Inventors: James F. Callahan, Jeffrey C. Boehm, Zehong Wan, Hongxing Yan, Xichen Lin
  • Publication number: 20080262040
    Abstract: The invention is directed to novel indazole carboxamide derivatives. Specifically, the invention is directed to compounds according to formula (I): where R1 and R2 are as defined below. These compounds are useful in the treatment of disorders associated with inappropriate IKK2 (also known as IKK?) activity, in particular in the treatment and prevention of disorders mediated by IKK2 mechanisms including inflammatory and tissue repair disorders. Such disorders include rheumatoid arthritis, asthma, and COPD (chronic obstructive pulmonary disease).
    Type: Application
    Filed: October 20, 2006
    Publication date: October 23, 2008
    Inventors: James Francis Callahan, Jeffrey K. Kerns, Xichen Lin
  • Publication number: 20080242685
    Abstract: The invention is directed to novel azaindole and azaindazole carboxamide derivatives. Specifically, the invention is directed to compounds according to formula (I): where R1, R2, T1, T2 and T3 are defined below. These compounds are useful in the treatment of disorders associated with inappropriate IKK2 (also known as IKK?) activity, in particular in the treatment and prevention of disorders mediated by IKK2 mechanisms including inflammatory and tissue repair disorders. Such disorders include rheumatoid arthritis, asthma, and COPD (chronic obstructive pulmonary disease).
    Type: Application
    Filed: October 20, 2006
    Publication date: October 2, 2008
    Inventors: Jeffrey K. Kerns, Xichen Lin
  • Publication number: 20070254873
    Abstract: The invention is directed to novel indole carboxamide derivatives. Specifically, the invention is directed to compounds according to formula I: where R1, R2, R3, U and V are defined below and to pharmaceutically acceptable salts thereof. The compounds of the invention are inhibitors of IKK2 and can be useful in the treatment of disorders associated with inappropriate IKK2 (also known as IKK?) activity, such as rheumatoid arthritis, asthma, and COPD (chronic obstructive pulmonary disease). Accordingly, the invention is further directed to pharmaceutical compositions comprising a compound of the invention. The invention is still further directed to methods of inhibiting IKK2 activity and treatment of disorders associated therewith using a compound of the invention or a pharmaceutical composition comprising a compound of the invention.
    Type: Application
    Filed: September 21, 2005
    Publication date: November 1, 2007
    Applicant: Glaxo Group Limited
    Inventors: Jeffrey Kerns, Michael Lindenmuth, Xichen Lin, Hong Nie, Sonia Thomas
  • Publication number: 20060211727
    Abstract: Novel substituted 1,5,7-trisubstituted-1,8-napthyridin-2(1H)-one compounds; 1,5,7 trisubstituted-1,6-napthyridine-2-(1H)-one compounds and 1,5,7-trisubstituted quinoline-2(1H)-one compounds, processes for the preparation thereof, the use thereof in treating CSBP/p38 kinase mediated diseases and pharmaceutical compositions for use in such therapy.
    Type: Application
    Filed: February 13, 2004
    Publication date: September 21, 2006
    Inventors: Jeffrey Boehm, James Callahan, Ralph Hall, Xichen Lin, Katherine Widdowson