Patents by Inventor Bruno Lohri

Bruno Lohri 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: 20140288266
    Abstract: The invention is directed to isomeric mixtures of cyclosporine analogues that are structurally similar to cyclosporine A. The mixtures possess enhanced efficacy and reduced toxicity over the individual isomers and over naturally occurring and other presently known cyclosporines and cyclosporine derivatives. Embodiments of the present invention are directed toward cis and trans-isomers of cyclosporin A analogs referred to as ISATX247, and derivatives thereof. ISATX247 isomers and alkylated, arylated, and deuterated derivatives are synthesized by stereoselective pathways where the particular conditions of a reaction determine the degree of stereoselectivity. Stereoselective pathways may utilize a Wittig reaction, or an organometallic reagent comprising inorganic elements such as boron, silicon, titanium, and lithium. The ratio of isomers in a mixture may range from about 10 to 90 percent by weight of the (E)-isomer to about 90 to 10 percent by weight of the (Z)-isomer, based on the total weight of the mixture.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 25, 2014
    Applicant: Aurinia Pharmaceuticals, Inc.
    Inventors: Selvaraj A. Naicker, Randall W. Yatscoff, Robert T. Foster, Mark Abel, Seetharaman Jayaraman, Hans-Jürgen Mair, Jean-Michel Adam, Bruno Lohri
  • Patent number: 8227505
    Abstract: The invention relates to a method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives of formula I: wherein R1, R21, R22, R23, R24 and n are as defined in the description and claims and to intermediates useful in the method of the invention as well as salts thereof.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: July 24, 2012
    Assignee: Hoffman-La Roche Inc.
    Inventors: Stefan Hildbrand, Bruno Lohri, Wolfgang Wostl
  • Patent number: 8071803
    Abstract: The present invention relates to a process for the preparation of 1-(2-ethyl-butyl)-cyclohexanecarboxylic acid which is useful as an intermediate in the preparation of pharmaceutically active compounds.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: December 6, 2011
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Bruno Lohri
  • Publication number: 20110092669
    Abstract: The invention is directed to isomeric mixtures of cyclosporine analogues that are structurally similar to cyclosporine A. The mixtures possess enhanced efficacy and reduced toxicity over the individual isomers and over naturally occurring and other presently known cyclosporines and cyclosporine derivatives. Embodiments of the present invention are directed toward cis and trans-isomers of cyclosporin A analogs referred to as ISATX247, and derivatives thereof. ISATX247 isomers and alkylated, arylated, and deuterated derivatives are synthesized by stereoselective pathways where the particular conditions of a reaction determine the degree of stereoselectivity. Stereoselective pathways may utilize a Wittig reaction, or an organometallic reagent comprising inorganic elements such as boron, silicon, titanium, and lithium. The ratio of isomers in a mixture may range from about 10 to 90 percent by weight of the (E)-isomer to about 90 to 10 percent by weight of the (Z)-isomer, based on the total weight of the mixture.
    Type: Application
    Filed: December 23, 2010
    Publication date: April 21, 2011
    Applicant: ISOTECHNIKA INC.
    Inventors: Selvaraj A. Naicker, Randall W. Yatscoff, Robert T. Foster, Mark Abel, Seetharaman Jayaraman, Hans-Jurgen Mair, Jean-Michel Adam, Bruno Lohri
  • Patent number: 7863474
    Abstract: The present invention relates to a process for the preparation of 1-(2-ethyl-butyl)-cyclohexanecarboxylic acid which is useful as an intermediate in the preparation of pharmaceutical active compounds.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: January 4, 2011
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Ursula Hoffmann, Bruno Lohri
  • Publication number: 20100062976
    Abstract: The invention is directed to isomeric mixtures of cyclosporine analogues that are structurally similar to cyclosporine A. The mixtures possess enhanced efficacy and reduced toxicity over the individual isomers and over naturally occurring and other presently known cyclosporines and cyclosporine derivatives. Embodiments of the present invention are directed toward cis and trans-isomers of cyclosporin A analogs referred to as ISATX247, and derivatives thereof. ISATX247 isomers and alkylated, arylated, and deuterated derivatives are synthesized by stereoselective pathways where the particular conditions of a reaction determine the degree of stereoselectivity. Stereoselective pathways may utilize a Wittig reaction, or an organometallic reagent comprising inorganic elements such as boron, silicon, titanium, and lithium. The ratio of isomers in a mixture may range from about 10 to 90 percent by weight of the (E)-isomer to about 90 to 10 percent by weight of the (Z)-isomer, based on the total weight of the mixture.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 11, 2010
    Applicant: ISOTECHNIKA INC.
    Inventors: Selvaraj A. Naicker, Randall W. Yatscoff, Robert T. Foster, Mark Abel, Seetharaman Jayaraman, Hans-Jurgen Mair, Jean-Michel Adam, Bruno Lohri
  • Patent number: 7642366
    Abstract: The invention is concerned with new phosphine ligands of the formula I wherein R1 and R2 are independently of each other alkyl, aryl, cycloalkyl or heteroaryl, said alkyl, aryl, cycloalkyl or heteroaryl may be substituted by alkyl, alkoxy, halogen, hydroxy, amino, mono- or dialkylamino, aryl, —SO2—R7, —SO3?, —CO—NR8R8?, carboxy, alkoxycarbonyl, trialkylsilyl, diarylalkylsilyl, dialkylarylsilyl or triarylsilyl; R3 is alkyl, cycloalkyl, aryl or heteroaryl; R4? and R4 signify independently of each other hydrogen, alkyl or optionally substituted aryl; or R4? and R4 together with the C-atom they are attached to form a 3-8-membered carbocyclic ring; dotted line is absent or is present and forms a double bond; R5 and R6 are independently of each other hydrogen, alkyl or aryl; or linked together to form a 3-8-membered carbocyclic ring or an aromatic ring; R7 is alkyl, aryl or NR8R8?; and R8 and R8? are independently of each other hydrogen, alkyl or aryl; metal complexes with such ligands as well as the use of su
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: January 5, 2010
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Hans Iding, Ernst Kupfer, Bruno Lohri, Kazimierz Michal Pietrusiewicz, Kurt Puentener, Michelangelo Scalone, Wioleta Swierczynska, Beat Wirz
  • Publication number: 20090326253
    Abstract: The invention is concerned with new phosphine ligands of the formula I wherein R1 and R2 are independently of each other alkyl, aryl, cycloalkyl or heteroaryl, said alkyl, aryl, cycloalkyl or heteroaryl may be substituted by alkyl, alkoxy, halogen, hydroxy, amino, mono- or dialkylamino, aryl, —SO2—R7, —SO3?, —CO—NR8R8?, carboxy, alkoxycarbonyl, trialkylsilyl, diarylalkylsilyl, dialkylarylsilyl or triarylsilyl; R3 is alkyl, cycloalkyl, aryl or heteroaryl; R4? and R4 signify independently of each other hydrogen, alkyl or optionally substituted aryl; or R4? and R4 together with the C-atom they are attached to form a 3-8-membered carbocyclic ring; dotted line is absent or is present and forms a double bond; R5 and R6 are independently of each other hydrogen, alkyl or aryl; or linked together to form a 3-8-membered carbocyclic ring or an aromatic ring; R7 is alkyl, aryl or NR8R8?; and R8 and R8? are independently of each other hydrogen, alkyl or aryl; metal complexes with such ligands as well as the use of suc
    Type: Application
    Filed: September 11, 2009
    Publication date: December 31, 2009
    Inventors: Hans Iding, Ernst Kupfer, Bruno Lohri, Kazimierz Michal Pietrusiewicz, Kurt Puentener, Michelangelo Scalone, Wioleta Swierczynska, Beat Wirz
  • Publication number: 20090312569
    Abstract: The present invention relates to a process for the preparation of 1-(2-ethyl-butyl)-cyclohexanecarboxylic acid which is useful as an intermediate in the preparation of pharmaceutically active compounds.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 17, 2009
    Inventor: Bruno Lohri
  • Patent number: 7619101
    Abstract: This invention relates to a process of the preparation of the novel intermediate (S)-4-fluoromethyl-dihydro-furan-2-one of the formula and with its use for the manufacture of pyrido[2,1-a]isoquinoline derivatives of the formula which are useful for the treatment and/or prophylaxis of diseases which are associated with DPP IV.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: November 17, 2009
    Assignee: Hoffman-La Roche Inc.
    Inventors: Stefan Abrecht, Jean-Michel Adam, Alec Fettes, Joseph Foricher, Bruno Lohri, Patrizio Mattei, Gerard Moine, Rudolf Schmid, Ulrich Zutter
  • Publication number: 20090240080
    Abstract: The present invention relates to a process for the preparation of 1-(2-ethyl-butyl)-cyclohexanecarboxylic acid which is useful as an intermediate in the preparation of pharmaceutical active compounds.
    Type: Application
    Filed: May 29, 2009
    Publication date: September 24, 2009
    Inventors: Ursula Hoffmann, Bruno Lohri
  • Publication number: 20090171100
    Abstract: The invention relates to a method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives of formula I: wherein R1, R21, R22, R23, R24 and n are as defined in the description and claims and to intermediates useful in the method of the invention as well as salts thereof.
    Type: Application
    Filed: January 26, 2009
    Publication date: July 2, 2009
    Inventors: Stefan Hildbrand, Bruno Lohri, Wolfgang Wostl
  • Patent number: 7501528
    Abstract: The invention relates to a method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives of formula I: wherein R1, R21, R22, R23, R24 and n are as defined in the description and claims and to intermediates useful in the method of the invention as well as salts thereof.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: March 10, 2009
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Stefan Hildbrand, Bruno Lohri, Wolfgang Wostl
  • Patent number: 7485731
    Abstract: The invention relates to a method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives of formula I: wherein R1, R21, R22, R23, R24 and n are as defined the description and claims and to intermediates and salts thereof useful in the method of the invention.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: February 3, 2009
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Bruno Lohri
  • Publication number: 20080154059
    Abstract: The present invention relates to a process for the preparation of 1-(2-ethyl-butyl)-cyclohexanecarboxylic acid which is useful as an intermediate in the preparation of pharmaceutical active compounds.
    Type: Application
    Filed: December 6, 2007
    Publication date: June 26, 2008
    Inventors: Ursula Hoffmann, Bruno Lohri
  • Publication number: 20070100152
    Abstract: The invention is concerned with new phosphine ligands of the formula I wherein R1 and R2 are independently of each other alkyl, aryl, cycloalkyl or heteroaryl, said alkyl, aryl, cycloalkyl or heteroaryl may be substituted by alkyl, alkoxy, halogen, hydroxy, amino, mono- or dialkylamino, aryl, —SO2—R7, —SO3?, —CO—NR8R8?, carboxy, alkoxycarbonyl, trialkylsilyl, diarylalkylsilyl, dialkylarylsilyl or triarylsilyl; R3 is alkyl, cycloalkyl, aryl or heteroaryl; R4? and R4 signify independently of each other hydrogen, alkyl or optionally substituted aryl; or R4? and R4 together with the C-atom they are attached to form a 3-8-membered carbocyclic ring; dotted line is absent or is present and forms a double bond; R5 and R6 are independently of each other hydrogen, alkyl or aryl; or linked together to form a 3-8-membered carbocyclic ring or an aromatic ring; R7 is alkyl, aryl or NR8R8?; and R8 and R8? are independently of each other hydrogen, alkyl or aryl; metal complexes with such ligands as well as the use of s
    Type: Application
    Filed: November 1, 2006
    Publication date: May 3, 2007
    Inventors: Hans Iding, Ernst Kupfer, Bruno Lohri, Kazimierz Pietrusiewicz, Kurt Puentener, Michelangelo Scalone, Wioleta Swierczynska, Beat Wirz
  • Publication number: 20070087963
    Abstract: The invention is directed to isomeric mixtures of cyclosporine analogues that are structurally similar to cyclosporine A. The mixtures possess enhanced efficacy and reduced toxicity over the individual isomers and over naturally occurring and other presently known cyclosporines and cyclosporine derivatives. Embodiments of the present invention are directed toward cis and trans-isomers of cyclosporin A analogs referred to as ISATX247, and derivatives thereof. ISATX247 isomers and alkylated, arylated, and deuterated derivatives are synthesized by stereoselective pathways where the particular conditions of a reaction determine the degree of stereoselectivity. Stereoselective pathways may utilize a Wittig reaction, or an organometallic reagent comprising inorganic elements such as boron, silicon, titanium, and lithium. The ratio of isomers in a mixture may range from about 10 to 90 percent by weight of the (E)-isomer to about 90 to 10 percent by weight of the (Z)-isomer, based on the total weight of the mixture.
    Type: Application
    Filed: October 13, 2006
    Publication date: April 19, 2007
    Inventors: Selvaraj Naicker, Randall Yatscoff, Robert Foster, Mark Abel, Seetharaman Jayaraman, Hans-Jurgen Mair, Jean-Michel Adam, Bruno Lohri
  • Publication number: 20060270853
    Abstract: This invention relates to a process of the preparation of the novel intermediate (S)-4-fluoromethyl-dihydro-furan-2-one of the formula and with its use for the manufacture of pyrido[2,1-a]isoquinoline derivatives of the formula which are useful for the treatment and/or prophylaxis of diseases which are associated with DPP IV.
    Type: Application
    Filed: May 19, 2006
    Publication date: November 30, 2006
    Inventors: Stefan Abrecht, Jean-Michel Adam, Alec Fettes, Joseph Foricher, Bruno Lohri, Patrizio Mattei, Gerard Moine, Rudolf Schmid, Ulrich Zutter
  • Patent number: 7141648
    Abstract: The invention is directed to isomeric mixtures of cyclosporine analogues that are structurally similar to cyclosporine A. The mixtures possess enhanced efficacy and reduced toxicity over the individual isomers and over naturally occurring and other presently known cyclosporines and cyclosporine derivatives. Embodiments of the present invention are directed toward cis and trans-isomers of cyclosporin A analogs referred to as ISATX247, and derivatives thereof. ISATX247 isomers and alkylated, arylated, and deuterated derivatives are synthesized by stereoselective pathways where the particular conditions of a reaction determine the degree of stereoselectivity. Stereoselective pathways may utilize a Wittig reaction, or an organometallic reagent comprising inorganic elements such as boron, silicon, titanium, and lithium. The ratio of isomers in a mixture may range from about 10 to 90 percent by weight of the (E)-isomer to about 90 to 10 percent by weight of the (Z)-isomer, based on the total weight of the mixture.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: November 28, 2006
    Assignee: Isotechnika Inc.
    Inventors: Selvaraj A. Naicker, Randall W. Yatscoff, Robert T. Foster, Mark Abel, Seetharaman Jayaraman, Hans-Jürgen Mair, Jean-Michel Adam, Bruno Lohri
  • Publication number: 20060211869
    Abstract: The invention relates to a method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives of formula I: wherein R1, R21, R22, R23, R24 and n are as defined the description and claims and to intermediates and salts thereof useful in the method of the invention.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 21, 2006
    Inventor: Bruno Lohri