Patents by Inventor Zhi-Hui Lu
Zhi-Hui Lu 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: 8975447Abstract: 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: GrantFiled: March 6, 2012Date of Patent: March 10, 2015Assignee: Boehringer Ingelheim International GmbHInventors: Wenjie Li, Zhi-Hui Lu, Chris Hugh Senanayake, Yongda Zhang
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Patent number: 8916701Abstract: 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: GrantFiled: December 15, 2011Date of Patent: December 23, 2014Assignee: Boehringer Ingelheim International GmbHInventors: Daniel Robert Fandrick, Zhi-Hui Lu, Diana Reeves, Jonathan Reeves, Chris Hugh Senanayake, Jinhua Jeff Song, Yongda Zhang
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Publication number: 20140171692Abstract: 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: ApplicationFiled: March 6, 2012Publication date: June 19, 2014Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBHInventors: Wenjie Li, Zhi-Hui Lu, Chris Hugh Senanayake, Yongda Zhang
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Publication number: 20140135493Abstract: 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: ApplicationFiled: December 15, 2011Publication date: May 15, 2014Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBHInventors: Daniel Robert Fandrick, Zhi-Hui Lu, Diana Crimhilda Reeves, Jonathan Timothy Reeves, Chris Hugh Senanayake, Jinhua J. Song, Yongda Zhang
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Publication number: 20140094609Abstract: The present invention is directed to an improved process for the preparation of Compounds of Formula (I), which are useful in the treatment of HIV infection. In particular, the present invention is directed to an improved process for the preparation of (2S)-2-tert-butoxy-2-(4-(2,3-dihydropyrano[4,3,2-de]quinolin-7-yl)-2-methylquinolin-3-yl)acetic acid, which is useful in the treatment of HIV infection.Type: ApplicationFiled: October 2, 2013Publication date: April 3, 2014Inventors: Brandon H. Brown, Xiang Wang, Keith R. Fandrick, Joe Ju Gao, Nizar Haddad, Serge R. Landry, Wenjie Li, Zhi-Hui Lu, Bo Qu, Diana C. Reeves, Carl Thibeault, Yongda Zhang
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Publication number: 20140094610Abstract: The present invention is directed to an improved process for the preparation of Compounds of Formula (I) or salts thereof which are useful in the treatment of HIV infection. In particular, the present invention is directed to an improved process for the preparation of (2S)-2-tert-butoxy-2-(4-(2,3-dihydropyrano[4,3,2-de]quinolin-7-yl)-2-methylquinolin-3-yl)acetic acid or salt thereof which is useful in the treatment of HIV infection.Type: ApplicationFiled: October 3, 2013Publication date: April 3, 2014Inventors: Wenjie LI, Philomen DECROOS, Keith R. FANDRICK, Joe Ju GAO, Nizar HADDAD, Zhi-Hui LU, Bo QU, Sonia RODRIGUEZ, Chris H. SENANAYAKE, Yongda ZHANG, Wenjun TANG
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Publication number: 20140057928Abstract: This invention relates to novel sodium salt forms of the following Compound (1), and methods for the preparation thereof, pharmaceutical compositions thereof, and their use in the treatment of Hepatitis C Viral (HCV) infection:Type: ApplicationFiled: October 30, 2013Publication date: February 27, 2014Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBHInventors: Rolf-Stefan BRICKL, Shirlynn CHEN, Jihchin CHUNG, Mayur Suryakant DUDHEDIA, Danping LI, Zhi-Hui LU, Siddharthya MUJUMDAR, Chitra TELANG, Richard J. VARSOLONA, Zeren WANG
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Patent number: 8598183Abstract: This invention relates to novel sodium salt forms of the following Compound (1), and methods for the preparation thereof, pharmaceutical compositions thereof, and their use in the treatment of Hepatitis C Viral (HCV) infection:Type: GrantFiled: September 23, 2011Date of Patent: December 3, 2013Assignee: Boehringer Ingelheim International GmbHInventors: Rolf-Stefan Brickl, Shirlynn Chen, Jihchin Chung, Mayur Suryakant Dudhedia, Danping Li, Zhi-Hui Lu, Siddharthya Mujumdar, Chitra Telang, Richard J. Varsolona, Zeren Wang
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Patent number: 8487094Abstract: Disclosed are syntheses of 11?-HSD1 inhibitors and corresponding intermediates that are promising for the treatment of a variety of disease states including diabetes, metabolic syndrome, obesity, glucose intolerance, insulin resistance, hyperglycemia, hypertension, hypertension-related cardiovascular disorders, hyperlipidemia, deleterious gluco-corticoid effects on neuronal function (e.g. cognitive impairment, dementia, and/or depression), elevated intra-ocular pressure, various forms of bone disease (e.g., osteoporosis), tuberculosis, leprosy (Hansen's disease), psoriasis, and impaired wound healing (e.g., in patients that exhibit impaired glucose tolerance and/or type 2 diabetes).Type: GrantFiled: July 23, 2009Date of Patent: July 16, 2013Assignee: Boehringer Ingelheim International GmbHInventors: Keith R. Fandrick, Joe Ju Gao, Wenjie Li, Zhi-Hui Lu, Yongda Zhang
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Publication number: 20120122887Abstract: This invention relates to novel sodium salt forms of the following Compound (1), and methods for the preparation thereof, pharmaceutical compositions thereof, and their use in the treatment of Hepatitis C Viral (HCV) infection:Type: ApplicationFiled: September 23, 2011Publication date: May 17, 2012Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBHInventors: Rolf-Stefan BRICKL, Shirlynn CHEN, Jihchin CHUNG, Mayur Suryakant DUDHEDIA, Danping LI, Zhi-Hui LU, Siddharthya MUJUMDAR, Chitra TELANG, Richard J. VARSOLONA, Zeren WANG
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Publication number: 20110269957Abstract: Disclosed are syntheses of 11?-HSD1 inhibitors and corresponding intermediates that are promising for the treatment of a variety of disease states including diabetes, metabolic syndrome, obesity, glucose intolerance, insulin resistance, hyperglycemia, hypertension, hypertension-related cardiovascular disorders, hyperlipidemia, deleterious gluco-corticoid effects on neuronal function (e.g. cognitive impairment, dementia, and/or depression), elevated intra-ocular pressure, various forms of bone disease (e.g., osteoporosis), tuberculosis, leprosy (Hansen's disease), psoriasis, and impaired wound healing (e.g., in patients that exhibit impaired glucose tolerance and/or type 2 diabetes).Type: ApplicationFiled: July 23, 2009Publication date: November 3, 2011Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBHInventors: Keith R. Fandrick, Joe Ju Gao, Wenjie Li, Zhi-Hui Lu, Yongda Zhang
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Patent number: 7851625Abstract: 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: GrantFiled: June 19, 2009Date of Patent: December 14, 2010Assignee: Boehringer Ingelheim International GmbHInventors: Ahmad Khodabocus, Zhi-Hui Lu, Chris Hugh Senanayake, Hanxun Wei, Yongda Zhang
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Patent number: 7642352Abstract: 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: GrantFiled: February 10, 2006Date of Patent: January 5, 2010Assignee: Boehringer Ingelheim International GmbHInventors: Ahmad Khodabocus, Zhi-Hui Lu, Chris Hugh Senanayake, Hanxun Wei, Yongda Zhang
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Publication number: 20090264655Abstract: 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: ApplicationFiled: June 19, 2009Publication date: October 22, 2009Applicant: Boehringer Ingelheim International GmbHInventors: Ahmad KHODABOCUS, Zhi-Hui Lu, Chris Hugh Senanayake, Hanxun Wei, Yongda Zhang
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Publication number: 20080214870Abstract: 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: ApplicationFiled: February 18, 2008Publication date: September 4, 2008Inventors: Zhengxu Han, Dhileepkumar Krishnamurthy, Chris Hugh Senanayake, Zhi-Hui Lu
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Patent number: 7408076Abstract: 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: GrantFiled: August 29, 2006Date of Patent: August 5, 2008Assignee: Boehringer Ingelheim International GmbHInventors: Guisheng Li, Jianxiu Liu, Zhi-Hui Lu, Frank Roschangar, Chris Hugh Senanayake, Ming Shen
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Patent number: 7332614Abstract: 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: GrantFiled: March 7, 2005Date of Patent: February 19, 2008Assignee: Boehringer Ingelheim International, GmbHInventors: Ahmad Khodabocus, Guisheng Li, Zhi-Hui Lu, Frank Roschangar, Chris Hugh Senanayake, Ming Shen
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Patent number: 7332610Abstract: 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: GrantFiled: September 1, 2006Date of Patent: February 19, 2008Assignee: Apsinterm LLCInventors: Zhengxu Han, Dhileepkumar Krishnamurthy, Chris Hugh Senanayake, Zhi-Hui Lu
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Publication number: 20070021330Abstract: The present invention relates to compounds of Formula (I), or a pharmaceutically acceptable salt, ester, or prodrug, thereof, which inhibit serine protease activity, particularly the activity of hepatitis C virus (HCV) NS3-NS4A protease. Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.Type: ApplicationFiled: May 19, 2004Publication date: January 25, 2007Applicant: Enanta Pharmaceuticals, Inc.Inventors: Frank Wu, Suanne Nakajima, Yat Or, Zhi-Hui Lu, Ying Sun, Zhenwei Miao, Zhe Wang
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Publication number: 20060287376Abstract: The present invention provides indole compounds of general formula III comprising the compounds of formula (III); wherein R, and R1-3 a defined herein.Type: ApplicationFiled: August 29, 2006Publication date: December 21, 2006Applicant: Boehringer Ingelheim International GmbHInventors: Guisheng LI, Jianxiu Liu, Zhi-Hui Lu, Frank Roschangar, Chris Senanayake, Ming Shen