Patents by Inventor Leifeng Cheng
Leifeng Cheng 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).
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Patent number: 8415378Abstract: or a pharmaceutically suitable salt thereof, wherein, R1 and R2 independently are hydrogen, deuterium, aryl, hetero aryl, C1-C8 alkyl, optionally being substituted with one or more substituents independently being R3, R3 is an aryl, hetero aryl, fluorine(s), a C1-C6 alkyl containing one or more fluorine, a C1-C6 alkyl containing one or more deuterium, a C1-C6 alkyl containing hydroxy, the aryl and heteroaryl optionally being substituted with one or more halogen, a fluorinated alkoxy, a fluorinated alkyl, a sulfonyl, one or more deuterium, a C1-6 alkyl, a C1-6 alkoxy, a nitrile, or R3 is a C1-6 alkyl optionally substituted with one or more of the following groups: COOR4, OCOR4, CONR5R6, NR5COR6, OR4; wherein, R4 is a C1-10 alkyl optionally substituted with one or more fluorine, deuterium, alkoxy, arylcarboxylate, alkyl carboxylate; R5 and R6 are independently selected from hydrogen, alkyl or they may together form a 4-8 membered carbon ring; or R1 and R2 form a 3-10 membered carbon ring optionally comprisType: GrantFiled: April 6, 2010Date of Patent: April 9, 2013Assignee: AstraZeneca ABInventors: Jonas Boström, Leifeng Cheng, Tomas Fex, Michael Karle, Daniel Pettersen, Peter Schell
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Patent number: 7875626Abstract: The present invention relates to 4,5,6,7-tetrahydropyrrolo[3,2-c]pyridin-4-one and 4,5-dihydropyrrolo[3,2-c]pyridin-4-one compounds of formula (I) and processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: GrantFiled: October 5, 2006Date of Patent: January 25, 2011Assignee: AstraZeneca ABInventor: Leifeng Cheng
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Publication number: 20100261755Abstract: or a pharmaceutically suitable salt thereof, wherein, R1 and R2 independently are hydrogen, deuterium, aryl, hetero aryl, C1-C8 alkyl, optionally being substituted with one or more substituents independently being R3, R3 is an aryl, hetero aryl, fluorine(s), a C1-C6 alkyl containing one or more fluorine, a C1-C6 alkyl containing one or more deuterium, a C1-C6 alkyl containing hydroxy, the aryl and heteroaryl optionally being substituted with one or more halogen, a fluorinated alkoxy, a fluorinated alkyl, a sulfonyl, one or more deuterium, a C1-6 alkyl, a C1-6 alkoxy, a nitrile, or R3 is a C1-6 alkyl optionally substituted with one or more of the following groups: COOR4, OCOR4, CONR5R6, NR5COR6, OR4; wherein, R4 is a C1-10 alkyl optionally substituted with one or more fluorine, deuterium, alkoxy, arylcarboxylate, alkyl carboxylate; R5 and R6 are independently selected from hydrogen, alkyl or they may together form a 4-8 membered carbon ring; or R1 and R2 form a 3-10 membered carbon ring optionally comprisingType: ApplicationFiled: April 6, 2010Publication date: October 14, 2010Applicant: AstraZeneca ABInventors: Jonas BOSTRÖM, Leifeng Cheng, Tomas Fex, Michael Karle, Daniel Pettersen, Peter Schell
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Patent number: 7799804Abstract: The present invention relates to compounds of formula (I) and processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: GrantFiled: March 30, 2005Date of Patent: September 21, 2010Assignee: Astrazeneca ABInventor: Leifeng Cheng
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Publication number: 20100234439Abstract: The present invention relates to a 1,5-diphenylpyrazole compound and its use in the treatment of obesity, psychiatric and neurological disorders, to methods for the its therapeutic use and to pharmaceutical compositions containing them.Type: ApplicationFiled: June 18, 2007Publication date: September 16, 2010Inventor: Leifeng Cheng
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Publication number: 20100234438Abstract: The present invention relates to a 1,5-diphenylpyrazole compound and its use in the treatment of obesity, psychiatric and neurological disorders, to methods for the its therapeutic use and to pharmaceutical compositions containing them.Type: ApplicationFiled: June 18, 2007Publication date: September 16, 2010Inventor: Leifeng Cheng
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Publication number: 20090227555Abstract: The present invention relates to certain novel pyridin compounds of Formula (I) to processes for preparing such compounds, to their utility as P2Y12 inhibitors and as anti-thrombotic agents etc, and processes for their preparation, their use as medicaments in cardiovascular diseases as well as pharmaceutical compositions containing them.Type: ApplicationFiled: June 23, 2008Publication date: September 10, 2009Applicant: AstraZeneca ABInventors: Peter Bach, Jonas Bostrom, Kay Brickmann, Leifeng Cheng, Fabrizio Giordanetto, Robert Groneberg, Darren Harvey, Michael O'Sullivan, Fredrik Zetterberg
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Patent number: 7576095Abstract: The present invention relates to 4,5-dihydropyrrolo[3,2-c]pyridin-4-one compounds of formula IA and processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: GrantFiled: April 3, 2007Date of Patent: August 18, 2009Assignee: Astrazeneca ABInventor: Leifeng Cheng
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Publication number: 20090156616Abstract: The present invention relates to compounds of formula (I) and processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: ApplicationFiled: July 17, 2006Publication date: June 18, 2009Inventors: Jonas Bostrom, Leifeng Cheng, Roine Olsson
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Publication number: 20090149463Abstract: The present invention relates to compounds of formula (I) and processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: ApplicationFiled: February 16, 2005Publication date: June 11, 2009Inventors: Leifeng Cheng, Eva-Lotte Lindstedt-Alstermark, Anna Maria Persdotter Boije
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Publication number: 20090088441Abstract: The present invention relates to novel compounds of the general formula (I) wherein R1, R4, R5 and X are as defined, having a positive allosteric GABAB receptor (GBR) modulator effect, methods for the preparation of said compounds and to their use, optionally in combination with a GABAB agonist, for the inhibition of transient lower esophageal sphincter relaxations, for the treatment of gastroesophageal reflux disease, as well as for the treatment of functional gastrointestinal disorders and irritable bowel syndrome (IBS).Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Inventors: Leifeng Cheng, Michael Karle
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Publication number: 20090088439Abstract: The present invention relates to novel compounds of the general formula (I) wherein R1, R2, R3 and R4 are as defined, having a positive allosteric GABAB receptor (GBR) modulator effect, methods for the preparation of said compounds and to their use, optionally in combination with a GABAB agonist, for the inhibition of transient lower esophageal sphincter relaxations, for the treatment of gastroesophageal reflux disease, as well as for the treatment of functional gastrointestinal disorders and irritable bowel syndrome (IBS).Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Inventors: Leifeng Cheng, Maria Jonforsen, Peter Schell
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Publication number: 20090042852Abstract: The present invention relates to certain novel pyridin compounds of Formula (I) to processes for preparing such compounds, to their utility as P2Y12 inhibitors and as anti-trombotic agents etc, and processes for their preparation, their use as medicaments in cardiovascular diseases as well as pharmaceutical compositions containing them.Type: ApplicationFiled: January 4, 2006Publication date: February 12, 2009Applicant: ASTRAZENECA ABInventors: Peter Bach, Jonas Bostrom, Kay Brickmann, Leifeng Cheng, Fabrizio Giordanetto, Robert D. Groneberg, Darren Martin Harvey, Michael F. O'Sullivan, Fredrik Zetterberg, Krister Osterlund
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Publication number: 20090023704Abstract: The present invention relates to novel xanthine compounds of the general formula (I) wherein R1, R2, R3 and R4 are as defined, having a positive allosteric GABAB receptor (GBR) modulator effect, methods for the preparation of said compounds and to their use, optionally in combination with a GABAB agonist, for the inhibition of transient lower esophageal sphincter relaxations, for the treatment of gastroesophageal reflux disease, as well as for the treatment of functional gastrointestinal disorders and irritable bowel syndrome (IBS).Type: ApplicationFiled: April 17, 2008Publication date: January 22, 2009Applicant: ASTRAZENECA ABInventors: Leifeng Cheng, Sara Holmqvist, Florian Raubacher, Peter Schell
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Publication number: 20090005415Abstract: Salts of 1,2-diarylimidazole-4-carboxamides and processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: ApplicationFiled: September 12, 2006Publication date: January 1, 2009Inventors: Matti Ahlqvist, Leifeng Cheng, Robert Lundqvist, Henrik Sorensen
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Publication number: 20080319019Abstract: The present invention relates to certain 1,2-diarylimidazoles of formula I and processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: ApplicationFiled: December 21, 2005Publication date: December 25, 2008Inventor: Leifeng Cheng
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Publication number: 20080312269Abstract: The present invention relates to 4,5,6,7-tetrahydropyrrolo[3,2-c]pyridin-4-one and 4,5-dihydropyrrolo[3,2-c]pyridin-4-one compounds of formula (I) and processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: ApplicationFiled: October 5, 2006Publication date: December 18, 2008Inventor: Leifeng Cheng
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Publication number: 20080306115Abstract: The present invention relates to substituted 1,2-diphenylimidazol-4-carboxamide compounds of formula I to processes for preparing such compounds, their use in the treatment of obesity, psychiatric and neurological disorders, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: ApplicationFiled: September 12, 2006Publication date: December 11, 2008Inventor: Leifeng Cheng
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Publication number: 20080287517Abstract: The present invention relates to compounds of formula I wherein R1 represents a group R5O— in which R5 represents a C3-7alkyl group substituted by one or more fluoro or R5 represents a C3-7alkylsulphonyl group which is optionally substituted by one or more fluoro; R2 represents a C1-4alkyl group, hydroxy, fluoro, chloro or cyano wherein each R2 is independently selected when n is >1; R3 represents a) cyclohexyl optionally substituted by one or more of the following: hydroxy, fluoro, amino, mono or diC1-3alkylamino, carboxy or a C1-4alkoxycarbonyl group b) piperidino substituted by one or more hydroxy c) unsubstituted piperidino but only when one of the following applies: R4 represents cyano or R1 represents 3-fluoropropylsulphonyloxy or R1 represents 3,3,3-trifluoropropoxy or R1 represents 3-fluoropropoxy or R2 is methyl d) phenyl substituted by one or more of the following: hydroxy, halo or a C1-4alkyl group e) pyridyl substituted by a C1-4alkyl group or f) a C4-9alkyl group; R4 represents cyano or meType: ApplicationFiled: July 17, 2006Publication date: November 20, 2008Inventors: Leifeng Cheng, Maria Jonforsen, Peter Schell
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Publication number: 20080262064Abstract: The present invention relates to novel imidazole compounds having a positive allosteric GABAB receptor (CUR) modulator effect, methods for the preparation of said compounds and to their use, optionally in combination with a GABAB agonist, for the inhibition of transient lower esophageal sphincter relaxations, for the treatment of gastroesophageal reflux disease, as well as for the treatment of functional gastrointestinal disorders and irritable bowel syndrome (IBS).Type: ApplicationFiled: April 17, 2008Publication date: October 23, 2008Applicant: ASTRAZENECA ABInventors: Udo Bauer, Wayne Brailsford, Leifeng Cheng, Maria Jonforsen, Florian Raubacher, Peter Schell, Tor Svensson