Patents Examined by Yong Chu
  • Patent number: 8420692
    Abstract: Reaction of nordihydroguaiaretic acid with various alkyl chlorides, 1-piperidinecarbonyl chloride, methyl chloroformate, or 1,1?-carbonyldiimidazole under alkaline conditions produced the corresponding phenol ethers, carbamates and carbonates, respectively, in 67-83% yields (Scheme 1 and Scheme 2). Among these derivatives, the nitrogen-containing compounds were converted to the corresponding hydrochloride salts. Having good solubility, these NDGA derivatives were found to be stable in aqueous solution. These new compounds exerted potent activities against HIV Tat-regulated transactivation in cos-7 cells. The most active transcription inhibitor compound of this series 5b (P4N, Tetrapiperidino NDGA, meso-2,3-dimethyl-1,4-bis(3,4-[2-(piperidino)ethoxypehnyl])butane tetrakishydrochloride salt) has an IC50 of 0.88 ?M.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: April 16, 2013
    Assignee: The Johns Hopkins University
    Inventors: Ru Chih C. Huang, Apostolos Gittis, Evangelos Moudrianakis, Julie A. Dohm, Jih Ru Hwu, Ming-Hua Hsu
  • Patent number: 8420870
    Abstract: A process and apparatus for recovering dichlorohydrins from a mixture comprising dichlorohydrins, one or more compounds selected from esters of dichlorohydrins, monochlorohydrins and/or esters thereof, and multihydroxylated-aliphatic hydrocarbon compounds and/or esters thereof, and optionally one or more substances comprising water, chlorinating agents, catalysts and/or esters of catalysts is disclosed. The mixture is stripped to recover dichlorohydrin(s) while distilling or fractionating the mixture to separate a lower boiling fraction comprising dichlorohydrin(s) from the mixture in one step. Advantages include more efficient recovery of dichlorohydrins for a given distillation column, less waste due to avoiding the conditions conducive to the formation of heavy byproducts, and reduced capital investment in recovery equipment.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: April 16, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Danil Tirtowidjojo, Andrei S. Merenov, Christian D. Kneupper, Bruce D. Hook, Anil J. Mehta
  • Patent number: 8415347
    Abstract: This invention concerns novel substituted tetracyclic tetrahydrofuran, pyrrolidine and tetrahydrothiophene derivatives with binding affinities towards serotonin receptors, in particular 5-HT2A and 5-HT2C receptors, and towards dopamine receptors, in particular dopamine D2 receptors and with norepinephrine reuptake inhibition properties, pharmaceutical compositions comprising the compounds according to the invention, the use thereof as a medicine, in particular for the prevention and/or treatment of a range of psychiatric and neurological disorders, in particular certain psychotic, cardiovascular and gastrokinetic disorders and processes for their production. The compounds according to the invention can be represented by general Formula (I) and comprises also the pharmaceutically acceptable acid or base addition salts thereof, the stereochemically isomeric forms thereof, the N-oxide form thereof and prodrugs thereof, wherein all substituents are defined as in Claim 1.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: April 9, 2013
    Assignee: Janssen Pharmaceutica, NV
    Inventors: José Maria Cid-Núñez, Antonius Adrianus Hendrikus Petrus Megens, Andrés Avelino Trabanco-Suárez, Mohamed Koukni, Georges Joseph Cornelius Hoornaert, Frans Josef Cornelius Compernolle, Tomasz Kozlecki, Hua Mao, Sushil Chandra Jha, Francisco Javier Fernández-Gadea
  • Patent number: 8415500
    Abstract: A process for preparing amines of the formula I, by reacting a carbonyl compound of the formula II with an amine of the formula III where R1 and R2 are different and are each an organic radical which has from 1 to 20 carbon atoms and may optionally also comprise heteroatoms, R3 is a C1-C6-alkyl group and R4 is an aryl group which may be partly or fully halogenated and/or may bear from one to three radicals from the group of cyano, nitro, C1-C6-alkyl, C1-C6-haloalkyl, hydroxyl, C1-C6-hydroxyalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, hydroxycarbonyl, C1-C6-alkoxycarbonyl, C1-C6-alkylamino, di(C1-C6-alkyl)amino, aryl and aryl(C1-C6-alkyl); and * represents the S or R configuration, and ** represents the S and/or R configuration; which comprises performing the reaction in the presence of a heterogeneous imination catalyst, of a hydrogenation catalyst and of hydrogen.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: April 9, 2013
    Assignee: BASF SE
    Inventors: Tobias Staeb, Thilo Hahn, Wolfgang Siegel
  • Patent number: 8410151
    Abstract: The invention relates to novel aminomethyl benzene derivatives, their preparation and their use as pharmaceutically active compounds. Said compounds particularly act as immunomodulating agents.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: April 2, 2013
    Assignee: Actelion Pharmaceuticals Ltd
    Inventors: Martin Bolli, Cyrille Lescop, Boris Mathys, Claus Mueller, Oliver Nayler, Beat Steiner
  • Patent number: 8404734
    Abstract: The present invention relates to novel crystalline modifications of pyraclostrobin, to processes for their preparation and to the use of the novel modifications for preparing crop protection compositions.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: March 26, 2013
    Assignee: BASF SE
    Inventors: Hans Ziegler, Winfried Mayer, Thomas Kroehl, Karl-Heinrich Schneider, Gerhard Cox, Peter Erk, Uwe Josef Vogelbacher, Rainer Noack, Roland Goetz, Joerg Wuckelt, Matthias Rauls
  • Patent number: 8404860
    Abstract: A method of selectively producing the syn-isomer of a compound having a hydantoin ring, which is important as an optical material, an electronic material, an active ingredient and an intermediate of medicines and pesticides and an active ingredient and an intermediate of diagnostics, comprising converting a compound having a hydantoin ring (for example, (E,Z)-2-benzyloxy-5,7-diazaspiro[3,4]octan-6,8-dione represented by the following formula (1)) into a t-butyl ester derivative thereof (formula (2)), crystallizing the same to selectively give the syn-monoBoc isomer thereof and then leaving the t-butyloxycarbonyl group.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: March 26, 2013
    Assignee: Tokuyama Corporation
    Inventors: Hirofumi Shiigi, Mina Shimamura
  • Patent number: 8404840
    Abstract: The present invention relates to improved processes for the preparation of endolthelin receptor antagonists darusentan and ambrisentan, their salts and intermediates. Processes for the preparation of darusentan and ambrisentan comprise reacting benzophenone with a compound of Formula-3 to provide a compound of Formula-4, which on in-situ treatment with methanol and a suitable acid provides a compound of Formula-5; hydrolyzing the compound of Formula-5 to provide a compound of Formula-6; resolving the compound of Formula-6 to provide a compound of Formula-7; esterifying the compound of Formula-7 to provide a compound of Formula-8; reacting the compound of Formula-8 with a compound of Formula-9 to provide a compound of Formula-10; hydrolyzing the compound of Formula-10 to provide darusentan or ambrisentan; and purifiying darusentan or ambrisentan to provide darusentan or ambrisentan having purity greater than 99.00% by HPLC.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: March 26, 2013
    Assignee: MSN Laboratories Limited
    Inventors: Manne Satyanarayana Reddy, Chakilam Nagaraju, Achampeta Kodanda Ramprasad
  • Patent number: 8404898
    Abstract: An integrated process is provided for preparing 2,3,5,6-tetraminotoluene and salts thereof starting with nitration of 2,6-dihalotoluene. The process design eliminates costly intermediate drying and recrystallization steps. Handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: March 26, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Joachim C. Ritter, Rajiv Dhawan
  • Patent number: 8399451
    Abstract: Disclosed are compounds of Formula (I) or a stereoisomer or a pharmaceutically acceptable salt thereof, wherein: A is Q is a substituted 5-membered monocyclic heteroaryl group; W is CH2, O, or NH; and R1, R2, R3, R4, R5, R6, m, n, t, and x are defined herein. Also disclosed are methods of using such compounds as selective agonists for G protein-coupled receptor S1P1, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: March 19, 2013
    Assignee: Bristol-Myers Squibb Company
    Inventors: John L. Gilmore, James E. Sheppeck
  • Patent number: 8399435
    Abstract: The invention relates to compounds of structural formula (I): or a pharmaceutically acceptable salt, solvate, clathrate, and prodrug thereof, wherein Ra, Rb, and R2 are defined herein. These compounds inhibit tubulin polymerization and/or target vasculature and are useful for treating proliferative disorders, such as cancer.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: March 19, 2013
    Assignee: Synta Pharmaceuticals Corp.
    Inventors: Lijun Sun, Jun Jiang, Christopher Borella, Shoujun Chen, Keizo Koya
  • Patent number: 8399526
    Abstract: The invention concerns a method for optimizing the operation of a reaction section for hydrocarbon synthesis starting from a feed comprising synthesis gas, operated in the presence of a catalyst comprising cobalt. This method comprises the following steps: a) determining the theoretical molar ratio, PH2O:PH2, in the reaction section; b) optionally, adjusting the ratio PH2O:PH2 determined in step a) to a value strictly below 1; c) determining the new value for the theoretical ratio PH2O:PH2 in the reaction section; and repeating steps a) to c) until the ratio of the partial pressures of water and hydrogen, PH2O:PH2, has a value strictly less than 1.1.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: March 19, 2013
    Assignees: IFP Energies Nouvelles, ENI S.p.A.
    Inventors: Marie-Claire Marion, Francois Hugues
  • Patent number: 8399494
    Abstract: The present invention is directed to 2,5-disubstituted phenyl carboxamide compounds which are antagonists of orexin receptors, and which are useful in the treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which orexin receptors are involved.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: March 19, 2013
    Assignee: Merck Sharp & Dohme Corp.
    Inventors: Jeffrey M. Bergman, Paul J. Coleman, Anthony J. Roecker, John D. Schreier
  • Patent number: 8394797
    Abstract: The invention relates to compounds having pharmacological activity towards the sigma receptor, and more particularly to pyrazole derivatives of formula I and to processes of preparation of such compounds, to pharmaceutical compositions comprising them, and to their use therapy and prophylaxis, in particular for the treatment of psychosis or pain.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: March 12, 2013
    Assignee: Laboratorios Del Dr. Esteve, S.A.
    Inventors: Jordi Corbera Arjona, Maria Rosa Cuberes-Altisent, Joerg Holenz, Daniel Martínez-Olmo, David Vaño-Domenech
  • Patent number: 8389554
    Abstract: Novel imidazo[2,1-b][1,3,4]thiadiazole derivatives of formula (I) wherein R1 and R2 have the meaning according to claim 1, are inhibitors of TGF-beta receptor I kinase, and can be employed, inter alia, for the treatment of tumors.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: March 5, 2013
    Assignee: Merck Patent Gesellschaft mit Beschränkter Haftung
    Inventors: Guenter Hoelzemann, Hartmut Greiner, Emilie Rossignol, Dominique Swinnen
  • Patent number: 8389507
    Abstract: The present invention relates to compounds of formula I wherein R1, R2, R3, Ar, n and o are as defined herein and to their pharmaceutically acceptable active salts. Compounds of formula I have a good affinity to the trace amine associated receptors (TAARs), especially for TAAR1 and are useful for the treatment of depression, anxiety disorders, bipolar disorder, attention deficit hyperactivity disorder (ADHD), stress-related disorders, psychotic disorders such as schizophrenia, neurological diseases such as Parkinson's disease, neurodegenerative disorders such as Alzheimer's disease, epilepsy, migraine, hypertension, substance abuse and metabolic disorders such as eating disorders, diabetes, diabetic complications, obesity, dyslipidemia, disorders of energy consumption and assimilation, disorders and malfunction of body temperature homeostasis, disorders of sleep and circadian rhythm, and cardiovascular disorders.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: March 5, 2013
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Guido Galley, Annick Goergler, Katrin Groebke Zbinden, Roger Norcross, Henri Stalder
  • Patent number: 8389508
    Abstract: The present invention relates to novel compounds having pharmacological activity, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of various disorders.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: March 5, 2013
    Assignee: Glaxo Group Limited
    Inventors: Guanghui Deng, Xichen Lin, Feng Ren, Baowei Zhao
  • Patent number: 8389509
    Abstract: Disclosed are compounds of Formula (I) or a pharmaceutically acceptable salt thereof, wherein: n is zero or an integer selected from 1 through 4; R1 is cycloalkyl, aryl, heteroaryl, or heterocyclyl, each optionally substituted with one to five substituents independently selected from C1 to C6 alkyl, C1 to C4 haloalkyl, benzyl, —OR4, and/or halogen; and R2, R3, R4, and n are defined herein. Also disclosed are methods of using such compounds as selective agonists for G protein-coupled receptor S1P1, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: March 5, 2013
    Assignee: Bristol-Myers Squibb Company
    Inventors: Alaric J. Dyckman, William J. Pitts, Scott Hunter Watterson
  • Patent number: 8383662
    Abstract: Bicyclic heteroaryl compounds of formula (I) shown below are disclosed. Each variable in formula (I) is defined in the specification. Also disclosed is treatment of cancer with these compounds.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: February 26, 2013
    Assignees: National Chiao Tung University, National Taiwan University
    Inventors: Chung-Ming Sun, Min-Liang Kuo, Yufeng Jane Tseng
  • Patent number: 8383853
    Abstract: The invention relates to novel 2,6-diethyl-4-methylphenyl-substituted tetramic acid derivatives of the formula (I) in which A, B, D and G are as defined above, to a plurality of processes and intermediates for their preparation and to their use as pesticides and/or herbicides, and also to selectively herbicidal compositions comprising, firstly, the 2,6-diethyl-4-methylphenyl-substituted tetramic acid derivatives of the formula (I) and, secondly, at least one crop plant tolerance promoter compound.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: February 26, 2013
    Assignee: Bayer Cropscience AG
    Inventors: Reiner Fischer, Stefan Lehr, Mark Wilhelm Drewes, Dieter Feucht, Olga Malsam, Guido Bojack, Christian Arnold, Thomas Auler, Jeffrey Martin Hills, Heinz Kehne, Chris Rosinger