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: 20140171692
    Abstract: Disclosed are a process and catalysts useful for carrying out asymmetric methlyallylations. The catalysts used in the invention have the formula (IV): wherein X1, X2, R3 and R4 are as defined herein. Compounds made by the process of the invention can be used to prepare pharmaceutically active compounds such as 11-?-hydroxysteroid hydrogenase type 1 (11-?-HSD1) inhibitors including 1,3-disubstituted oxazinan-2-ones.
    Type: Application
    Filed: March 6, 2012
    Publication date: June 19, 2014
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Wenjie Li, Zhi-Hui Lu, Chris Hugh Senanayake, Yongda Zhang
  • Publication number: 20140135506
    Abstract: Disclosed are methods for making chiral phosphorus ligands including chiral phosphines, chiral phosphine oxides, phosphonamides, and aminophosphines. The chiral phosphorus ligands prepared by the methods of the invention are useful as components of chiral catalysts, e.g., transition metal complexes.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 15, 2014
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Zhengxu HAN, Chris Hugh SENANAYAKE
  • Publication number: 20140135493
    Abstract: Disclosed is a process for making diastereomeric compound of the formula (I): wherein m, n and R1 to R4 are as defined herein. The process of the invention provides the compound of formula (I) in high yield and substantially free of the corresponding diastereomers. The compounds of formula (I) prepared by the process of the invention are useful for making pharmaceutically active compounds such as 11-?-hydroxysteroid hydrogenase type 1 (11-?-HSD1) inhibitors.
    Type: Application
    Filed: December 15, 2011
    Publication date: May 15, 2014
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Daniel Robert Fandrick, Zhi-Hui Lu, Diana Crimhilda Reeves, Jonathan Timothy Reeves, Chris Hugh Senanayake, Jinhua J. Song, Yongda Zhang
  • Patent number: 8653282
    Abstract: The invention relates to improved methods of preparing dihydrothienopyrimidines of formula 1, and intermediates thereof, (I) wherein X is SO or SO2, preferably SO, and wherein RA, R1, R2, R3, R4 and R5 have the meanings given in the description. The methods according to this invention are more suitable for large-scale synthesis of said compounds than prior methods because the new synthetic process avoids distillation and chromatographic purification between steps and results in a higher overall yield of the desired product.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: February 18, 2014
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Rogelio Frutos, Dhileepkumar Krishnamurthy, Jason Alan Mulder, Sonia Rodriguez, Chris Hugh Senanayake, Thomas G. Tampone
  • Patent number: 8552212
    Abstract: The invention relates to a series of novel chiral phosphorus ligands of formulae (Ia) and (Ib): wherein R, 1-rR>4 and X are as defined herein. The invention also relates to chiral metal complexes prepared with these chiral phosphorus ligands. The chiral metal complexes are useful as catalysts for carrying out asymmetric hydro genation.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: October 8, 2013
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Bo Qu, Chris Hugh Senanayake, Wenjun Tang, Xudong Wei, Nathan K. Yee
  • Publication number: 20130079359
    Abstract: The invention relates to novel piperidino-dihydrothienopyrimidine sulfoxides of formula I, wherein Ring A is a 6-membered aromatic ring which may optionally comprise one or two nitrogen atoms and wherein R is Cl and wherein R may be located either in the para-, meta- or ortho-position of Ring A, wherein S* is a sulphur atom that represents a chiral center, and all pharmaceutically acceptable salts, enantiomers and racemates, hydrates and solvates thereof and the use of these compounds for the treatment of inflammatory or allergic diseases of the respiratory tract such as COPD or asthma.
    Type: Application
    Filed: August 23, 2012
    Publication date: March 28, 2013
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Pascale A.J. POUZET, Peter NICKOLAUS, Ulrike WERTHMANN, Rogelio Perez FRUTOS, Bing-Shiou YANG, Soojin KIM, Jason Alan MULDER, Nitinchandra D. PATEL, Chris Hugh SENANAYAKE, Thomas Gabriel TAMPONE, Xudong WEI
  • Publication number: 20130059866
    Abstract: The invention relates to novel piperidino-dihydrothienopyrimidine sulfoxides of formula I, wherein Ring A is a 6-membered aromatic ring which may optionally comprise one or two nitrogen atoms and wherein R is Cl and wherein R may be located either in the para-, meta- or ortho-position of Ring A, wherein S* is a sulphur atom that represents a chiral center, and all pharmaceutically acceptable salts, enantiomers and racemates, hydrates and solvates thereof and the use of these compounds for the treatment of inflammatory or allergic diseases of the respiratory tract such as COPD or asthma.
    Type: Application
    Filed: February 23, 2012
    Publication date: March 7, 2013
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Horst Dollinger, Rogelio Perez Frutos, Soojin Kim, Jason Alan Mulder, Peter Nickolaus, Nitinchandra D. Patel, Pascale Pouzet, Chris Hugh Senanayake, Thomas Gabriel Tampone, Xudong Wei, Ulrike Werthmann, Bing-Shiou Yang
  • Publication number: 20120277455
    Abstract: The invention relates to a series of novel chiral phosphorus ligands of formulae (Ia) and (Ib): wherein R, 1-rR>4 and X are as defined herein. The invention also relates to chiral metal complexes prepared with these chiral phosphorus ligands. The chiral metal complexes are useful as catalysts for carrying out asymmetric hydro genation.
    Type: Application
    Filed: November 1, 2010
    Publication date: November 1, 2012
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Bo Qu, Chris Hugh Senanayake, Wenjun Tang, Xudong Wei, Nathan K. Yee
  • Patent number: 8101765
    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: January 16, 2009
    Date of Patent: January 24, 2012
    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: 20110263844
    Abstract: The present invention is directed to a method for the preparation of macrocyclic compounds of formula (I), comprising the step of cyclizing a diene of formula (II), in the presence of a catalyst, wherein R1-R6, A, W and V are as defined herein. The present invention is also directed to intermediate compounds of formula II.
    Type: Application
    Filed: May 5, 2009
    Publication date: October 27, 2011
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Chutian Shu, Chris Hugh Senanayake, Zhulin Tan, Nathan Yee, Xingzhong Zeng
  • Patent number: 8017771
    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: January 16, 2009
    Date of Patent: September 13, 2011
    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: 20110130563
    Abstract: The present invention relates to an improved process for the preparation of dihydrothieno[3,2-d]pyrimidine diols, and similar pyrimidine diols, that is efficient, high-yielding, and does not require expensive and potentially unstable intermediates. The diols are used as intermediates in the synthesis of pyrimidine compounds which inhibit PDE4, and are thus useful in the treatment of respiratory or gastrointestinal diseases and complaints, peripheral or central nervous system diseases and disorders, inflammatory conditions, and cancers.
    Type: Application
    Filed: May 7, 2009
    Publication date: June 2, 2011
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Rogelio Perez Frutos, Thomas G. Tampone, Jason Alan Mulder, Dhileepkumar Krishnamurthy, Chris Hugh Senanayake
  • Patent number: 7884246
    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: Grant
    Filed: November 1, 2006
    Date of Patent: February 8, 2011
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Fabrice Gallou, Heewon Lee, Chris Hugh Senanayake, Jinhua J. Song, Zhulin Tan, Jinghua Xu, Nathan K. Yee
  • Patent number: 7858804
    Abstract: Disclosed are processes for making compounds containing 4- and 5-imidazolyl rings, also disclosed are the intermediates useful in the processes disclosed herein.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: December 28, 2010
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Rogelio Perez Frutos, Dhileepkumar Krishnamurthy, Nitinchandra D. Patel, Sonia Rodriguez, Chris Hugh Senanayake
  • Patent number: 7851625
    Abstract: Disclosed are processes for making 2, 3 disubstituted indole compounds such as compounds of general formula I comprised of the steps of a) reacting a bromoindole compound (i) with a dialkoxyl C1-5 borane in the presence of a ligand, a palladium catalyst and a base to make a compound of general formula (ii); or alternatively reacting compound (i) with a trialkyl magnesiate reagent, followed by treatment with a borate; b) reacting the product of step a with a R2-Hal where R2-Hal is defined herein.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: December 14, 2010
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Ahmad Khodabocus, Zhi-Hui Lu, Chris Hugh Senanayake, Hanxun Wei, Yongda Zhang
  • Publication number: 20100240879
    Abstract: The present invention relates to processes for preparing the compounds of general formula I, wherein the groups R1 and R3 are defined according to claim 1. Furthermore this inventions relates to intermediates obtained in these processes.
    Type: Application
    Filed: May 28, 2010
    Publication date: September 23, 2010
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Matthias ECKHARDT, Frank HIMMELSBACH, Xiao-jun WANG, Wenjun TANG, Xiufeng SUN, Li ZHANG, Dhileepkumar KRISHNAMURTHY, Chris Hugh SENANAYAKE, Zhengxu HAN
  • Publication number: 20100222585
    Abstract: The invention relates to improved methods of preparing dihydrothienopyrimidines of formula 1, and intermediates thereof, (I) wherein X is SO or SO2, preferably SO, and wherein RA, R1, R2, R3, R4 and R5 have the meanings given in the description. The methods according to this invention are more suitable for large-scale synthesis of said pounds than prior methods because the new synthetic process avoids distillation and chromatographic purification between steps and results in a higher overall yield of the desired product.
    Type: Application
    Filed: October 15, 2008
    Publication date: September 2, 2010
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Rogelio Frutos, Dhileepkumar Krishnamurthy, Jason Alan Mulder, Sonia Rodriguez, Chris Hugh Senanayake, Thomas G. Tampone
  • Patent number: 7772191
    Abstract: The present invention relates to processes for preparing the compounds of general formula I, wherein the groups R1 and R3 are defined according to claim 1. Furthermore this inventions relates to intermediates obtained in these processes.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: August 10, 2010
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Matthias Eckhardt, Frank Himmelsbach, Xiao-jun Wang, Wenjun Tang, Xiufeng Sun, Li Zhang, Dhileepkumar Krishnamurthy, Chris Hugh Senanayake, Zhengxu Han
  • Patent number: 7642352
    Abstract: Disclosed are processes for making 2,3 disubstituted indole compounds such as compounds of general formula I comprised of the steps of a) reacting a bromoindole compound (i) with a dialkoxyl C1-5 borane in the presence of a ligand, a palladium catalyst and a base to make a compound of general formula (ii); or alternatively reacting compound (i) with a trialkyl magnesiate reagent, followed by treatment with a borate; b) reacting the product of step a with a R2-Hal where R2-Hal is defined herein.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: January 5, 2010
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Ahmad Khodabocus, Zhi-Hui Lu, Chris Hugh Senanayake, Hanxun Wei, Yongda Zhang
  • Publication number: 20090264655
    Abstract: Disclosed are processes for making 2, 3 disubstituted indole compounds such as compounds of general formula I comprised of the steps of a) reacting a bromoindole compound (i) with a dialkoxyl C1-5 borane in the presence of a ligand, a palladium catalyst and a base to make a compound of general formula (ii); or alternatively reacting compound (i) with a trialkyl magnesiate reagent, followed by treatment with a borate; b) reacting the product of step a with a R2-Hal where R2-Hal is defined herein.
    Type: Application
    Filed: June 19, 2009
    Publication date: October 22, 2009
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Ahmad KHODABOCUS, Zhi-Hui Lu, Chris Hugh Senanayake, Hanxun Wei, Yongda Zhang