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: 20140288266Abstract: 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: ApplicationFiled: March 18, 2014Publication date: September 25, 2014Applicant: 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: 8227505Abstract: 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: GrantFiled: January 26, 2009Date of Patent: July 24, 2012Assignee: Hoffman-La Roche Inc.Inventors: Stefan Hildbrand, Bruno Lohri, Wolfgang Wostl
-
Patent number: 8071803Abstract: 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: GrantFiled: June 12, 2009Date of Patent: December 6, 2011Assignee: Hoffmann-La Roche Inc.Inventor: Bruno Lohri
-
Publication number: 20110092669Abstract: 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: ApplicationFiled: December 23, 2010Publication date: April 21, 2011Applicant: 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: 7863474Abstract: 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: GrantFiled: May 29, 2009Date of Patent: January 4, 2011Assignee: Hoffmann-La Roche Inc.Inventors: Ursula Hoffmann, Bruno Lohri
-
Publication number: 20100062976Abstract: 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: ApplicationFiled: September 8, 2009Publication date: March 11, 2010Applicant: 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: 7642366Abstract: 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 suType: GrantFiled: November 1, 2006Date of Patent: January 5, 2010Assignee: Hoffmann-La Roche Inc.Inventors: Hans Iding, Ernst Kupfer, Bruno Lohri, Kazimierz Michal Pietrusiewicz, Kurt Puentener, Michelangelo Scalone, Wioleta Swierczynska, Beat Wirz
-
Publication number: 20090326253Abstract: 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 sucType: ApplicationFiled: September 11, 2009Publication date: December 31, 2009Inventors: Hans Iding, Ernst Kupfer, Bruno Lohri, Kazimierz Michal Pietrusiewicz, Kurt Puentener, Michelangelo Scalone, Wioleta Swierczynska, Beat Wirz
-
Publication number: 20090312569Abstract: 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: ApplicationFiled: June 12, 2009Publication date: December 17, 2009Inventor: Bruno Lohri
-
Patent number: 7619101Abstract: 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: GrantFiled: May 19, 2006Date of Patent: November 17, 2009Assignee: 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: 20090240080Abstract: 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: ApplicationFiled: May 29, 2009Publication date: September 24, 2009Inventors: Ursula Hoffmann, Bruno Lohri
-
Publication number: 20090171100Abstract: 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: ApplicationFiled: January 26, 2009Publication date: July 2, 2009Inventors: Stefan Hildbrand, Bruno Lohri, Wolfgang Wostl
-
Patent number: 7501528Abstract: 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: GrantFiled: March 8, 2006Date of Patent: March 10, 2009Assignee: Hoffmann-La Roche Inc.Inventors: Stefan Hildbrand, Bruno Lohri, Wolfgang Wostl
-
Patent number: 7485731Abstract: 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: GrantFiled: March 8, 2006Date of Patent: February 3, 2009Assignee: Hoffmann-La Roche Inc.Inventor: Bruno Lohri
-
Publication number: 20080154059Abstract: 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: ApplicationFiled: December 6, 2007Publication date: June 26, 2008Inventors: Ursula Hoffmann, Bruno Lohri
-
Publication number: 20070100152Abstract: 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 sType: ApplicationFiled: November 1, 2006Publication date: May 3, 2007Inventors: Hans Iding, Ernst Kupfer, Bruno Lohri, Kazimierz Pietrusiewicz, Kurt Puentener, Michelangelo Scalone, Wioleta Swierczynska, Beat Wirz
-
Publication number: 20070087963Abstract: 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: ApplicationFiled: October 13, 2006Publication date: April 19, 2007Inventors: Selvaraj Naicker, Randall Yatscoff, Robert Foster, Mark Abel, Seetharaman Jayaraman, Hans-Jurgen Mair, Jean-Michel Adam, Bruno Lohri
-
Publication number: 20060270853Abstract: 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: ApplicationFiled: May 19, 2006Publication date: November 30, 2006Inventors: Stefan Abrecht, Jean-Michel Adam, Alec Fettes, Joseph Foricher, Bruno Lohri, Patrizio Mattei, Gerard Moine, Rudolf Schmid, Ulrich Zutter
-
Patent number: 7141648Abstract: 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: GrantFiled: October 17, 2002Date of Patent: November 28, 2006Assignee: 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: 20060211869Abstract: 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: ApplicationFiled: March 8, 2006Publication date: September 21, 2006Inventor: Bruno Lohri