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: 20040157846
    Abstract: An improved process for the preparation of certain pyrrolotriazine compounds is disclosed. The compounds exhibit utility as kinase inhibitors.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 12, 2004
    Inventors: Bang-Chi Chen, Rulin Zhao, Joseph Edward Sundeen, Katerina Leftheris, John Hynes, Stephen T. Wrobleski
  • Publication number: 20040092573
    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 1
    Type: Application
    Filed: June 24, 2003
    Publication date: May 13, 2004
    Inventors: Jeffrey A. Robl, Bang-Chi Chen, Chong-Qing Sun
  • Publication number: 20040077865
    Abstract: This invention relates to novel processes for the preparation of amino isoquinolines, benzylamino isoquinolines, and acid derivatives useful as serine protease inhibtors.
    Type: Application
    Filed: August 14, 2003
    Publication date: April 22, 2004
    Inventors: Rulin Zhao, Bang-Chi Chen
  • Publication number: 20040063767
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(-2-oxyazolylalkylthio)-2-azacycloalkanoylaminothiazole compounds of formula I 1
    Type: Application
    Filed: August 12, 2003
    Publication date: April 1, 2004
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Mark E. Salvati, Joseph E. Sundeen, Hai-Yun Xia, Rulin Zhao
  • Publication number: 20040024216
    Abstract: Compounds of the following structure are HMG CoA reductase inhibitors and thus are active in inhibiting cholesterol biosynthesis, modulating blood serum lipids, for example, lowering LDL cholesterol and/or increasing HDL cholesterol, and treating hyperlipidemia, dyslipidemia, hormone replacement therapy, hypercholesterolemia, hypertriglyceridemia and atherosclerosis as well as Alzheimer's disease and osteoporosis 1
    Type: Application
    Filed: June 24, 2003
    Publication date: February 5, 2004
    Inventors: Jeffrey A. Robl, Bang-Chi Chen, Chong-Qing Sun
  • Publication number: 20030216440
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-arylacetylaminothiazole compounds of formula I: 1
    Type: Application
    Filed: April 4, 2003
    Publication date: November 20, 2003
    Inventors: Bang-Chi Chen, Joseph E. Sundeen, Rulin Zhao
  • Patent number: 6639074
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-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, CONR9R10, 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: March 18, 2002
    Date of Patent: October 28, 2003
    Assignee: Bristol Myers Squibb Company
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Mark E. Salvati, Joseph E. Sundeen, Hai-Yun Xiao, Rulin Zhao
  • Patent number: 6613911
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-arylacetylaminothiazole compounds of formula I: or a pharmnaceutically acceptable salt thereof, wherein: R1, R2, R4, R5, R6, R8, R9, R12 and R13 are each independently hydrogen, alkyl, aryl or heteroaryl; R3, R7, R10 and R11 are each independently hydrogen, alkyl, aryl, heteroaryl, halogen, hydroxy or alkoxy; and X is CH or N, which are novel, potent inhibitors of cyclin dependent kinases (cdks). The present invention also concerns a new process for the preparation of formylarylacetates and formylarylacetic acids.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: September 2, 2003
    Assignee: Bristol-Myers Squibb Company
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Joseph E. Sundeen, Rulin Zhao
  • Patent number: 6562994
    Abstract: The present invention provides an improved process for the preparation of N-(substituted phenyl)-3-alkyl-, aryl- and heteroarylsulfonyl-2-hydroxy-2-alkyl- and haloalkylpropanamide compounds of formula I that exhibit antiandrogenic activity and are useful in the treatment of malignant or benign prostatic disease or of androgen dependent disease conditions such as acne, hirsutism or seborrhea.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: May 13, 2003
    Assignee: Bristol-Myers Squibb Co.
    Inventors: Bang-Chi Chen, Joseph E. Sundeen, Rulin Zhao
  • Publication number: 20020119972
    Abstract: Use of a compound for treating a respiratory disease in a mammal wherein the compound is a cannabinoid receptor modulator is disclosed.
    Type: Application
    Filed: February 8, 2001
    Publication date: August 29, 2002
    Inventors: Katerina Leftheris, Rulin Zhao, Bang-Chi Chen, Peter Kiener, Hong Wu, Chennagiri R. Pandit, Stephen Wrobleski, Ping Chen, John Hynes, Malinda Longphre, Derek J. Norris, Steven Spergel
  • Publication number: 20020099217
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-azacycloalkanoylaminothiazole compounds of formula I 1
    Type: Application
    Filed: March 18, 2002
    Publication date: July 25, 2002
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Mark E. Salvati, Joseph E. Sundeen, Hai-Yun Xiao, Rulin Zhao
  • Publication number: 20020094977
    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 1
    Type: Application
    Filed: December 4, 2001
    Publication date: July 18, 2002
    Inventors: Jeffrey A. Robl, Bang-Chi Chen, Chong-Qing Sun
  • Publication number: 20020086902
    Abstract: The present invention provides an improved process for the preparation of N-(substituted phenyl)-3-alkyl-, aryl- and heteroarylsulfonyl-2-hydroxy-2-alkyl- and haloalkylpropanamide compounds of formula I 1
    Type: Application
    Filed: September 17, 2001
    Publication date: July 4, 2002
    Inventors: Bang-Chi Chen, Joseph E. Sundeen, Rulin Zhao
  • Patent number: 6414156
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-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, CONR9R10, 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: December 22, 2000
    Date of Patent: July 2, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Mark E. Salvati, Joseph E. Sundeen, Hai-Yun Xiao, Rulin Zhao
  • Publication number: 20020072609
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-arylacetylaminothiazole compounds of formula I: 1
    Type: Application
    Filed: February 5, 2002
    Publication date: June 13, 2002
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Joseph E. Sundeen, Rulin Zhao
  • Publication number: 20020061901
    Abstract: Compounds of the following structure are HMG CoA reductase inhibitors and thus are active in inhibiting cholesterol biosynthesis, modulating blood serum lipids, for example, lowering LDL cholesterol and/or increasing HDL cholesterol, and treating hyperlipidemia, dyslipidemia, hormone replacement therapy, hypercholesterolemia, hypertriglyceridemia and atherosclerosis as well as Alzheimer's disease and osteoporosis 1
    Type: Application
    Filed: December 4, 2001
    Publication date: May 23, 2002
    Inventors: Jeffrey A. Robl, Bang-Chi Chen, Chong-Qing Sun
  • Patent number: 6392053
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-arylacetylaminothiazole compounds of formula I or a pharmaceutically acceptable salt thereof, wherein: R1, R2, R4, R5, R6, R8, R9, R12 and R13 are each independently hydrogen, alkyl, aryl or heteroaryl; R3, R7, R10 and R11 are each independently hydrogen, alkyl, aryl, heteroaryl, halogen, hydroxy or alkoxy; and X is CH or N, which are novel, potent inhibitors of cyclin dependent kinases (cdks). The present invention also concerns a new process for the preparation of formylarylacetates and formylarylacetic acids.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: May 21, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Joseph E. Sundeen, Rulin Zhao
  • Publication number: 20020028826
    Abstract: Compounds of the following structure are HMG CoA reductase inhibitors and thus are active in inhibiting cholesterol biosynthesis, modulating blood serum lipids, for example, lowering LDL cholesterol and/or increasing HDL cholesterol, and treating hyperlipidemia, dyslipidemia, hormone replacement therapy, hypercholesterolemia, hypertriglyceridemia and atherosclerosis as well as Alzheimer's disease and osteoporosis 1
    Type: Application
    Filed: June 6, 2001
    Publication date: March 7, 2002
    Inventors: Jeffrey A. Robl, Bang-Chi Chen, Chong-Qing Sun
  • Publication number: 20020013334
    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 1
    Type: Application
    Filed: June 6, 2001
    Publication date: January 31, 2002
    Inventors: Jeffrey A. Robl, Bang-Chi Chen, Chong-Qing Sun
  • Patent number: 6340752
    Abstract: Acylmercaptoalkanoylamino lactam esters or acids are converted to the corresponding mercaptoalkanoylamino lactam ester or acid under basic conditions by including an agent which minimizes the amount of disulfides. Suitable agents are bismercaptans, phosphine or phosphite reducing agents, zinc metal powder, and sodium hydrosulfite. Such agents are also employed in the recrystallization and reprocessing of the mercaptoalkanoylamino lactam acids.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: January 22, 2002
    Assignee: Bristol-Myers Squibb Co.
    Inventors: David R. Kronenthal, Theodor Denzel, Bang-Chi Chen, James H. Simpson, Rajendra P. Deshpande