Patents by Inventor Bang-Chi Chen

Bang-Chi Chen 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: 20070282106
    Abstract: A novel process and intermediates thereof for making 4,5-dihydro-pyrazolo[3,4-c]pyrid-2-ones of the type shown below from appropriate phenyl hydrazines is described. These compounds can be useful as factor Xa inhibitors.
    Type: Application
    Filed: August 15, 2007
    Publication date: December 6, 2007
    Inventors: Boguslaw Mudryk, Nicolas Cuniere, Dau-Ming Hsieh, Lucius Rossano, Jing Liang, Bang-Chi Chen, Huiping Zhang, Rulin Zhao, Bei Wang, Adrian David
  • Patent number: 7304157
    Abstract: A novel process and intermediates thereof for making 4,5-dihydro-pyrazolo[3,4-c]pyrid-2-ones of the type shown below from appropriate phenyl hydrazines is described. These compounds can be useful as factor Xa inhibitors.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: December 4, 2007
    Assignee: Bristol-Myers Squibb Company
    Inventors: Boguslaw M. Mudryk, Nicolas Cuniere, Dau-Ming Hsieh, Lucius Rossano, Jing Liang, Bang-Chi Chen, Huiping Zhang, Rulin Zhao, Bei Wang, Adrian David
  • Publication number: 20070219370
    Abstract: The present invention is directed to process for the preparation of metabolites as well as the parent compound of N-(2-chloro-6-methylphenyl)-2-[[6-[4-(2-hydroxyethyl)-1-piperazinyl]-2-methyl-4-pyrimidinyl] amino]-5-thiazolecarboxamide, the compound of formula (I).
    Type: Application
    Filed: March 14, 2007
    Publication date: September 20, 2007
    Inventors: Jung-Hui Sun, Jianqing Li, Bang-Chi Chen, Daniel Smith
  • Publication number: 20070135631
    Abstract: Compounds of formula Ia and Ib wherein A, B, C and R1 are described herein.
    Type: Application
    Filed: November 13, 2006
    Publication date: June 14, 2007
    Inventors: Mark Salvati, Heather Finlay, Bang-Chi Chen, Lalgudi Harikrishnan, Ji Jiang, James Johnson, Muthoni Kamau, R. Lawrence, Jianqing Li, John Lloyd, Michael Miller, Zulan Pi, Jennifer Qiao, Richard Rampulla, Jacques Roberge, Tammy Wang, Yufeng Wang, Wu Yang
  • Publication number: 20060142319
    Abstract: The invention provides crystalline forms of 6-[(5S,9R)-9-(4-cyanophenyl)-3-(3,5-dichlorophenyl)-1-methyl-2,4-dioxo-1,3,7-triazaspiro[4.4]non-7-yl]nicotinic acid, its pharmaceutically acceptable salts, or solvates, thereof Further, a process is provided for preparing substituted spiro-hydantoin compounds of the formula I wherein Z is N or CR4b; K and L are independently O or S; Ar is an optionally substituted aryl or heteroaryl; A1, A2, G, and Q are linkers; and R2, R4a, R4c, and R16 are defined in the specification. The process includes the reaction of N-substituted glycine compound and methylene precursor compound with an alkene compound. The substituted spiro-hydantoin compounds of formulae I and II are useful in the treatment of immune and/or inflammatory diseases.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 29, 2006
    Inventors: Bang-Chi Chen, Albert Delmonte, T.G. Dhar, Michael Galella, Margaret Gleeson, Jack Gougoutas, Douglas McLeod, Huiping Zhang
  • Patent number: 7034151
    Abstract: An improved process for the preparation of certain pyrrolotriazine compounds is disclosed. The compounds exhibit utility as kinase inhibitors.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: April 25, 2006
    Assignee: Bristol-Myers Squibb Company
    Inventors: Bang-Chi Chen, Rulin Zhao, Joseph Edward Sundeen, Katerina Leftheris, John Hynes, Stephen T. Wrobleski
  • Publication number: 20060069258
    Abstract: A novel process and intermediates thereof for making 4,5-dihydro-pyrazolo[3,4-c]pyrid-2-ones of the type shown below from appropriate phenyl hydrazines is described. These compounds can be useful as factor Xa inhibitors.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 30, 2006
    Inventors: Rafael Shapiro, Lucius Rossano, Boguslaw Mudryk, Nicolas Cuniere, Matthew Oberholzer, Huiping Zhang, Bang-Chi Chen
  • Publication number: 20060069118
    Abstract: The instant invention provides crystalline forms of 1-(3-chlorophenyl)-7-oxo-6-[4-(2-oxo-1 (2H)pyridinyl)phenyl]-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxamide and its solvates thereof; processes for the production of such crystalline forms; pharmaceutical compositions comprising such crystalline forms; and methods of treating thromboembolic disorders with such crystalline forms or such pharmaceutical compositions.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 30, 2006
    Inventors: Margaret Gleeson, Gary McGeorge, Bang-Chi Chen, Huiping Zhang, Mary Malley, John DiMarco, Denette Murphy, Xiaotian Yin, Steven Fabian, Jasmine Gupta
  • Publication number: 20060069085
    Abstract: A novel process and intermediates thereof for making 4,5-dihydro-pyrazolo[3,4-c]pyrid-2-ones of the type shown below, as well as the corresponding pyrazoles, from appropriate phenyl hydrazines is described. These compounds can be useful as factor Xa inhibitors.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 30, 2006
    Inventors: Rulin Zhao, Bang-Chi Chen, Bei Wang, Huiping Zhang
  • Publication number: 20060069119
    Abstract: A novel process and intermediates thereof for making 4,5-dihydro-pyrazolo[3,4-c]pyrid-2-ones of the type shown below from appropriate phenyl hydrazines is described. These compounds can be useful as factor Xa inhibitors.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 30, 2006
    Inventors: Boguslaw Mudryk, Nicolas Cuniere, Dau-Ming Hsieh, Lucius Rossano, Jing Liang, Bang-Chi Chen, Huiping Zhang, Rulin Zhao, Bei Wang, Adrian David
  • Publication number: 20060069260
    Abstract: A novel process and intermediates thereof for making N-aryl pyridones of the type shown below from appropriate pyridinolates is described. These compounds are useful as intermediates for the synthesis of clinical candidates.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 30, 2006
    Inventors: Huiping Zhang, Bang-Chi Chen, Rulin Zhao
  • Publication number: 20060041124
    Abstract: An improved process for the preparation of certain pyrrolotriazine compounds is disclosed. The compounds exhibit utility as kinase inhibitors.
    Type: Application
    Filed: October 14, 2005
    Publication date: February 23, 2006
    Inventors: Bang-Chi Chen, Rulin Zhao, Joseph Sundeen, Katerina Leftheris, John Hynes, Stephen Wrobleski
  • Publication number: 20060004067
    Abstract: The invention relates to processes for preparing compounds having the formula, and crystalline forms thereof, wherein Ar is aryl or heteroaryl, L is an optional alkylene linker, and R2, R3, R4, and R5, are as defined in the specification herein, which compounds are useful as kinase inhibitors, in particular, inhibitors of protein tyrosine kinase and p38 kinase.
    Type: Application
    Filed: July 29, 2005
    Publication date: January 5, 2006
    Inventors: Bang-Chi Chen, Roberto Droghini, Jean Lajeunesse, John DiMarco, Michael Galella, Ramakrishnan Chidambaram
  • Publication number: 20050215795
    Abstract: The invention relates to processes for preparing compounds having the formula, and crystalline forms thereof, wherein Ar is aryl or heteroaryl, L is an optional alkylene linker, and R2, R3, R4, and R5, are as defined in the specification herein, which compounds are useful as kinase inhibitors, in particular, inhibitors of protein tyrosine kinase and p38 kinase.
    Type: Application
    Filed: February 4, 2005
    Publication date: September 29, 2005
    Inventors: Bang-Chi Chen, Roberto Droghini, Jean Lajeunesse, John Dimarco, Michael Galella, Ramakrishnan Chidambaram
  • Publication number: 20050176965
    Abstract: The invention is directed to processes for preparing 2-aminothiazole-5-carboxamides of formula I wherein R1, R2, R3, R4 and R5 are as defined as set forth in the specification herein.
    Type: Application
    Filed: February 3, 2005
    Publication date: August 11, 2005
    Inventors: Bang-Chi Chen, Rulin Zhao, Bei Wang
  • Publication number: 20050159424
    Abstract: The present invention relates to compounds having the formula, and pharmaceutically-acceptable salts, prodrugs, solvates, isomers, and/or hydrates thereof, wherein Q is an optionally-substituted phenyl, pyridyl, pyridazinyl, pyrimidinyl, or pyrazinyl ring; R2 is alkyl or an amino group as defined herein; and Z is optionally-substituted oxadiazolyl or —C(?O)NR6, wherein R6 is lower alkyl or cyclopropyl. The compounds are surprisingly advantageous in preparing pharmaceutical compositions for treating p38 kinase related conditions and/or in methods of treating conditions associated with the activity of p38 kinase in a patient.
    Type: Application
    Filed: May 3, 2004
    Publication date: July 21, 2005
    Inventors: Alaric Dyckman, Jagabandhu Das, Katerina Leftheris, Chunjian Liu, Rulin Zhao, Bang-Chi Chen, Stephen Wrobleski
  • Patent number: 6906192
    Abstract: This invention relates to novel processes for the preparation of amino isoquinolines, benzylamino isoquinolines, and acid derivatives useful as serine protease inhibtors.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: June 14, 2005
    Assignee: Bristol Myers Squibb Company
    Inventors: Rulin Zhao, Bang-Chi Chen
  • Patent number: 6897321
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(-2-oxyazolylalkylthio)-2-azacycloalkanoylaminothiazole compounds of formula I or a pharmaceutically acceptable salt thereof, wherein: R is alkyl, aryl or heteroaryl; R1, R2, R3, R4 and R5 are each independently hydrogen, alkyl, aryl or heteroaryl; R6 and R7 are each independently hydrogen, alkyl, aryl, heteroaryl, halogen, hydroxy or alkoxy; R8 is hydrogen, alkyl, aryl, heteroaryl, CONR9, R10, COR11 or COOR12; R9, R10, R11 and R12 are each independently hydrogen, alkyl or aryl; m equals 0 to 5; and n equals 0 to 5, which are novel, potent inhibitors of cyclin dependent kinases (cdks). The present invention further concerns new key intermediate compounds, a quaternary ammonium salt of formula III? and a 2-oxazolylalkyl derivative of formula IX.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: May 24, 2005
    Assignee: Briston Myers Squibb Company
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Mark E. Salvati, Joseph E. Sundeen, Hai-Yun Xia, Rulin Zhao
  • Patent number: 6812345
    Abstract: Compounds of the following structure are HMG CoA reductase inhibitors and thus are active in inhibiting cholesterol biosynthesis, modulating blood serum lipids such as lowering LDL cholesterol and/or increasing HDl cholesterol, and treating hyperlipidemia, hypercholesterolemia, hypertriglyceridemia and atherosclerosis and pharmaceutically acceptable salts thereof, wherein X is O, S, SO, SO2 or NR7; Z is n is 0 or 1; R1 and R2 are the same or different and are independently selected from alkyl, arylalkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, heteroaryl or cycloheteroalkyl; and R3 to R10 are as defined herein.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: November 2, 2004
    Assignee: Bristol-Myers Squibb Company
    Inventors: Jeffrey A. Robl, Bang-Chi Chen, Chong-Qing Sun
  • Publication number: 20040180898
    Abstract: Novel processes for the preparation of imidazoquinoxalinones, heterocyclic-substituted imidazopyrazinones, imidazoquinoxalines and heterocyclic-substituted imidazopyrazines are described.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 16, 2004
    Inventors: Bang-Chi Chen, Joseph E. Sundeen, Mark S. Bednarz, Ping Chen