Patents by Inventor Chris Hugh Senanayake

Chris Hugh Senanayake 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: 20090137815
    Abstract: Disclosed are processes for making compounds containing 4- and 5-imidazolyl rings, also disclosed are the inter-mediates useful in the processes disclosed herein.
    Type: Application
    Filed: April 16, 2007
    Publication date: May 28, 2009
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Rogelio Perez Frutos, Dhileepkumar Krishnamurthy, Nitinchandra D. Patel, Sonia Rodriguez, Chris Hugh Senanayake
  • Publication number: 20090124808
    Abstract: Disclosed are highly convergent processes for preparing compounds of formula (I), which compounds are potent active agents for the treatment of hepatitis C virus (HCV) infection: The disclosed processes use SNAr-type coupling reactions between peptidic compounds having a hydroxyproline moiety of the following formula: and halogenated or sulfonated bromoquinoline compounds.
    Type: Application
    Filed: January 16, 2009
    Publication date: May 14, 2009
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Carl Alan BUSACCA, Rogelio Perez FRUTOS, Nizar HADDAD, Suresh R. KAPADIA, Jon Charles LORENZ, Anjan SAHA, Chris Hugh SENANAYAKE, Xudong WEI
  • Publication number: 20090124809
    Abstract: Disclosed are highly convergent processes for preparing compounds of formula (I), which compounds are potent active agents for the treatment of hepatitis C virus (HCV) infection: The disclosed processes use SNAr-type coupling reactions between peptidic compounds having a hydroxyproline moiety of the following formula: and halogenated or sulfonated bromoquinoline compounds.
    Type: Application
    Filed: January 16, 2009
    Publication date: May 14, 2009
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Carl Alan BUSACCA, Rogelio Perez FRUTOS, Nizar HADDAD, Suresh R. KAPADIA, Jon Charles LORENZ, Anjan SAHA, Chris Hugh SENANAYAKE, Xudong WEI
  • Patent number: 7514557
    Abstract: Disclosed are highly convergent processes for preparing compounds of formula (I), which compounds are potent active agents for the treatment of hepatitis C virus (HCV) infection: The disclosed processes use SNAr-type coupling reactions between peptidic compounds having a hydroxyproline moiety of the following formula: and halogenated or sulfonated bromoquinoline compounds.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: April 7, 2009
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Carl Alan Busacca, Rogelio Perez Frutos, Nizar Haddad, Suresh R. Kapadia, Jon Charles Lorenz, Anjan Saha, Chris Hugh Senanayake, Xudong Wei
  • Publication number: 20090088571
    Abstract: Disclosed is a multi-step process for preparing a compound of Formula I: wherein R1 to R3 are as defined herein. The compounds of formula I inhibit the binding of human intercellular adhesion molecules to the Leukointegrins. As a result, these compounds are useful in the treatment of inflammatory and immune cell-mediated diseases.
    Type: Application
    Filed: December 5, 2008
    Publication date: April 2, 2009
    Applicants: BOEHRINGER INGELHEIM INTERNATIONAL GMBH, BOEHRINGER INGELHEIM PHARMACEUTICALS, INC.
    Inventors: Xiao-jun WANG, Thomas WIRTH, Thomas NICOLA, Li ZHANG, Rogelio Perez FRUTOS, Yibo XU, Dhileepkumar KRISHNAMURTHY, Laurence John NUMMY, Richard J. VARSOLONA, Chris Hugh SENANAYAKE, Jutta KROEBER, Diana REEVES
  • Patent number: 7470795
    Abstract: Disclosed is a multi-step process for preparing a compound of Formula I: wherein R1 to R3 are as defined herein. The compounds of formula I inhibit the binding of human intercellular adhesion molecules to the Leukointegrins. As a result, these compounds are useful in the treatment of inflammatory and immune cell-mediated diseases.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: December 30, 2008
    Assignees: Boehringer Ingelheim Pharmaceuticals, Inc., Boehringer Ingelheim International GmbH
    Inventors: Xiao-jun Wang, Thomas Wirth, Thomas Nicola, Li Zhang, Rogelio Perez Frutos, Yibo Xu, Dhileepkumar Krishnamurthy, Laurence John Nummy, Richard J. Varsolona, Chris Hugh Senanayake, Jutta Kroeber, Diana Reeves
  • Publication number: 20080293972
    Abstract: Disclosed is a process for preparing substituted anisidines of formula I starting from substituted cyclic hydroxy-ketones II via aromatization through a substituted oxime intermediate IV in which R is C1-C6 alkyl or halogen, and Alk is C1-C6 alkyl. The substituted anisidines of formula I have been found to be useful as intermediates in the preparation of agents for the treatment of hepatitis C viral (HCV) infections.
    Type: Application
    Filed: November 1, 2006
    Publication date: November 27, 2008
    Inventors: Fabrice Gallou, Heewon Lee, Chris Hugh Senanayake, Jinhua J. Song, Zhulin Tan, Jinghua Xu, Nathan K. Yee
  • Publication number: 20080214870
    Abstract: This invention provides intermediates useful in a method of preparing amine stereoisomers. It also provides a method of preparing sulfoxide and sulfinylamine stereoisomers using certain of the intermediates.
    Type: Application
    Filed: February 18, 2008
    Publication date: September 4, 2008
    Inventors: Zhengxu Han, Dhileepkumar Krishnamurthy, Chris Hugh Senanayake, Zhi-Hui Lu
  • Patent number: 7408076
    Abstract: Disclosed are 2-bromoaniline or 2-chloroaniline compounds of formula (I): wherein R, R1 and X are as defined. The compounds are useful as intermediates for preparing indole compounds.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: August 5, 2008
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Guisheng Li, Jianxiu Liu, Zhi-Hui Lu, Frank Roschangar, Chris Hugh Senanayake, Ming Shen
  • Patent number: 7332614
    Abstract: The present invention provides a process for making a compound of general formula I: wherein: R=H or C1-8alkyl X=C3-C8cycloalkyl, C3-C8aryl or C3-C8alkyl; Y=heteroaryl or aryl; Z=H, HO2Cā€”, C1-8alkyl O2Cā€”, C1-6alkyl HNC(O)ā€”, and as described herein.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: February 19, 2008
    Assignee: Boehringer Ingelheim International, GmbH
    Inventors: Ahmad Khodabocus, Guisheng Li, Zhi-Hui Lu, Frank Roschangar, Chris Hugh Senanayake, Ming Shen
  • Patent number: 7332610
    Abstract: This invention provides intermediates useful in a method of preparing amine stereoisomers. It also provides a method of preparing sulfoxide and sulfinylamine stereoisomers using certain of the intermediates.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: February 19, 2008
    Assignee: Apsinterm LLC
    Inventors: Zhengxu Han, Dhileepkumar Krishnamurthy, Chris Hugh Senanayake, Zhi-Hui Lu
  • Patent number: 7265222
    Abstract: Disclosed is a process of making compounds of formula(I): wherein R1, R2, R3, R4 and Ra of formula(I) are defined herein. The product compounds inhibit production of cytokines involved in inflammatory processes and are thus useful for treating diseases and pathological conditions involving inflammation. Also disclosed are intermediates useful in making such compounds.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: September 4, 2007
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Nizar Haddad, Xudong Wei, Chris Hugh Senanayake, Jinghua Xu, Nathan Yee
  • Patent number: 7256297
    Abstract: This invention encompasses novel methods of preparing sulfinamides and sulfoxides, particularly stereomerically pure sulfinamides and sulfoxides. The invention further encompasses novel compounds from which sulfinamides and sulfoxides can be prepared.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: August 14, 2007
    Assignee: Apsinterm, LLC.
    Inventors: Chris Hugh Senanayake, Zhengxu Han, Dhileepkumar Krishnamurthy, Derek Pflum, Harold Scott Wilkinson
  • Patent number: 7186827
    Abstract: Disclosed are processes of making dipeptide compounds of formula(I) as further described in the detailed description section:
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: March 6, 2007
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Carl Alan Busacca, Nizar Haddad, Suresh R. Kapadia, Lana Smith Keenan, Jon Charles Lorenz, Chris Hugh Senanayake, Xudong Wei
  • Patent number: 7179919
    Abstract: A process for stereoselective synthesis of a compound of Formula (I) wherein R1, R2, R3, R4, and R5 are as described herein.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: February 20, 2007
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Jinhua J. Song, Zhulin Tan, Nathan K. Yee, Chris Hugh Senanayake, Jinghua Xu, Fabrice Gallou
  • Publication number: 20060287539
    Abstract: This invention provides intermediates useful in a method of preparing amine stereoisomers. It also provides a method of preparing sulfoxide and sulfinylamine stereoisomers using certain of the intermediates.
    Type: Application
    Filed: September 1, 2006
    Publication date: December 21, 2006
    Inventors: Zhengxu Han, Dhileepkumar Krishnamurthy, Chris Hugh Senanayake, Zhi-Hui Lu
  • Patent number: 7129378
    Abstract: This invention provides a method of preparing amine stereoisomers, which comprises stereoselectively reducing a sulfinylimine that bears on the sulfinyl group a residue of an alcohol, thiol or amine, or reacting a sulfinylimine stereoisomer that bears on the sulfinyl group a residue of an alcohol, thiol or amine with a source of a nucleophile, to afford a sulfinylamine stereoisomer, followed by contacting the sulfinylamine stereoisomer with a reagent suitable for the cleavage of a sulfur-nitrogen bond, to afford an amine stereoisomer. It also provides novel intermediates useful in the method, and the use of certain of the intermediates in the preparation of sulfoxide and sulfinylamine stereoisomers.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: October 31, 2006
    Assignee: Apsinterm, LLC
    Inventors: Zhengxu Han, Dhileepkumar Krishnamurthy, Chris Hugh Senanayake, Zhi-Hui Lu
  • Patent number: 7126009
    Abstract: The present invention provides a method for making substituted indole compounds of general formula III comprising the step of: (a) reacting a 2-bromoaniline or 2-chloroaniline of general formula (I) (I) wherein: X, R and R1 are defined herein with a substituted acetylene of formula (II) wherein R2 and R3 are defined herein in the presence of a palladium catalyst, a ligand, and a base in a solvent at a suitable temperature to give a compound of formula (III);
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: October 24, 2006
    Assignee: Boehringer Ingelheim International, GmbH
    Inventors: Guisheng Li, Jianxiu Liu, Zhi-Hui Lu, Frank Roschangar, Chris Hugh Senanayake, Ming Shen
  • Patent number: 7064214
    Abstract: This invention encompasses novel methods of preparing sulfinamides and sulfoxides, particularly stereomerically pure sulfinamides and sulfoxides. The invention further encompasses novel compounds from which sulfinamides and sulfoxides can be prepared.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: June 20, 2006
    Assignee: Apsinterm LLC
    Inventors: Chris Hugh Senanayake, Zhengxu Han, Dhileepkumar Krishnamurthy, Derek Pflum, Harold Scott Wilkinson
  • Patent number: 6894189
    Abstract: This invention encompasses novel methods of preparing sibutramine and sibutramine derivatives, and stereomerically pure sibutramine derivatives in particular. Examples of sibutramine derivatives include, but are not limited to, sibutramine metabolites such as desmethylsibutramine and didesmethylsibutramine. The invention further encompasses novel compounds useful in the synthesis of sibutramine derivatives.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: May 17, 2005
    Assignee: Sepracor Inc.
    Inventors: Chris Hugh Senanayake, Zhengxu Han, Dhileepkumar Krishnamurthy, Derek Pflum