Oxy, Not Bonded Directly To A Ring, In Same Side Chain As Ester Function Patents (Class 560/60)
  • Publication number: 20080214587
    Abstract: The present invention relates, inter alia, to a process for preparing a compound of formula (I): which comprises either (a) reacting a compound of formula (II): with 2-cyanophenyl, or a salt thereof, in the presence of between 0.1 and 2 mol % of 1,4-diazabicyclo[2.2.2]octane, or (b) reacting a compound of the formula (III): with a compound of the formula (IV): in the presence of between 0.1 and 2 mol % of 1,4-diazabicyclo[2.2.2]octane; where W is the methyl (E)-2-(3-methoxy)acrylate group C(CO2CH3)?CHOCH3 or the methyl 2-(3,3-dimethoxy)propanoate group C(CO2CH3)CH(OCH3)2, or a mixture of the two groups. In addition, the present invention relates to a novel precursors of the compound of formula (I) and methods for making them.
    Type: Application
    Filed: April 13, 2006
    Publication date: September 4, 2008
    Applicant: SYNGENTA CROP PROTECTION, INC.
    Inventors: Alan John Whitton, Ewan Campbell Boyd, Jack Vass
  • Publication number: 20080194825
    Abstract: The present invention refers to a process for the synthesis of (1-{1-(R)-(E)-{3-[2-(7-chloro-quinolin-2-yl)-vinyl]-phenyl}-3-[2-(1-hydroxy-1-methyl-ethyl)-phenyl]-propylsulfanylmethyl}-cyclopropyl)-acetic acid or its salts, comprising the reaction between 7-Chloro-2-vinyl-quinoline and a compound of formula (I) wherein X is a halogen atom or a group of formula —OSO2R, wherein R is selected from the group consisting of CF3, tolyl, methyl and F; in the presence of a palladium based catalyst. The invention is also directed to intermediates compounds of the process.
    Type: Application
    Filed: April 18, 2007
    Publication date: August 14, 2008
    Applicant: INKE, S.A.
    Inventors: Juan Antonio Perez Andres, Juan Huguet Clotet, Pere Dalmases Barjoan
  • Publication number: 20080182897
    Abstract: This invention is directed to the crystalline potassium salt of a lipoxin A4 analog of Formula (I): processes for preparing the crystalline potassium salts, methods for using them to treat disease-states characterized by inflammation, and pharmaceutical compositions comprising such crystalline potassium salts.
    Type: Application
    Filed: December 3, 2007
    Publication date: July 31, 2008
    Applicant: Bayer Schering Pharma Aktiengesellschaft
    Inventors: Tilo Haag, Danja Grossbach, Gabriele Winter, Michael Sander, Wolfgang Beckmann, Klaus Bartel, Christian Dinter
  • Publication number: 20080153905
    Abstract: Esters of 2-phenylalkanenitriles, such as 3-acetoxy-2-(2-chloro-5-(difluoromethoxy)phenyl)propanenitrile and 3-acetoxy-2-(4-chlorophenyl)propanenitrile, and compositions containing such esters, are useful as fungicides at very low concentrations.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Inventor: Donald Wesley Stoutamire
  • Patent number: 7371888
    Abstract: Compounds having a formula: or a pharmaceutically acceptable salt or prodrug thereof, are provided, and are useful for the treatment of metabolic disorders.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: May 13, 2008
    Assignee: Metabolex, Inc.
    Inventors: Zuchun Zhao, Xin Chen, Jianchao Wang, Hongbin Sun, Jack Shih-Chieh Liang
  • Patent number: 7368566
    Abstract: Disclosed is a new process and intermediates for preparing benzazepines of Formula (I): wherein R1 and R2 are as defined herein.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: May 6, 2008
    Assignee: SmithKline Beecham Corporation
    Inventors: Jose J. Conde, Lewilynn L. Goldfinger, Michael A. McGuire, Susan C. Shilcrat, Michael D. Wallace, Marvin Sungwhan Yu
  • Patent number: 7355063
    Abstract: The compound represented by the following formula (1): wherein A, B, R1, R2, R3 and Z are as defined in the specification is analogous to shogaol and gingerol useful in the fields of foods, medicines, quasi-drugs, cosmetics, etc., and more highly active in tyrosinase activity inhibition, etc. than shogaol and gingerol.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: April 8, 2008
    Assignee: Toagosei Co., Ltd.
    Inventors: Shuhei Yamaguchi, Hisatoyo Kato
  • Patent number: 7351850
    Abstract: A process by which an ?-oxocarbonyl compound useful as an intermediate for pharmaceuticals/agricultural chemicals can be industrially advantageously and efficiently produced in a high yield. The process, which is for producing an ?-oxocarbonyl compound represented by the general formula (I) wherein R1 and R2 are as defined in the description, comprises oxidizing an ?-hydroxycarbonyl compound represented by the general formula (II) with oxygen or air in the presence of a carboxylic acid and at least one vanadium compound selected from divanadium pentaoxide, divanadium trioxide, divanadium tetraoxide, ammonium metavanadate, sodium metavanadate, potassium metavanadate, triethoxyoxovanadium, tripropoxyoxovanadium, triisopropoxyoxovanadium, vanadium oxobis(acetylacetonate) and vanadium tris(acetylacetonate).
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: April 1, 2008
    Assignee: Kuraray Co., Ltd.
    Inventors: Fumihiko Okabe, Hideki Matsuda, Takashi Yamaguchi
  • Patent number: 7153969
    Abstract: Methyl (R)-2-(R1OSO2)-2-(2-chlorophenyl)acetates useful as intermediates in the preparation of methyl (S)-2(2-chlorophenyl)-2-(4,5,6,7-tetrahydrothieno[3,2-c]-5-pyridyl)acetate.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: December 26, 2006
    Assignee: Sanofi-Aventis
    Inventors: André Bousquet, Andrée Musolino
  • Patent number: 7038075
    Abstract: The present invention relates to a production method of (R)-3-hydroxy-3-(2-phenylethyl)hexanoic acid which comprises optical resolution of racemic 3-hydroxy-3-(2-phenylethyl)hexanoic acid with an optically active amine of the formula (VIII) wherein R2 is 3,4-dimethoxyphenyl or 2-chlorophenyl. According to the present invention, (R)-3-hydroxy-3-(2-phenylethyl)hexanoic acid useful as a starting material of a pharmaceutical agent can be efficiently produced with a high optical purity and a relatively high total yield.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: May 2, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masahide Tanaka, Kozo Matsui, Tadashi Katsura, Mitsuhiro Iwasaki, Hiroshi Maeda, Nobushige Itaya
  • Patent number: 7026438
    Abstract: The invention relates to liquid sulphur-containing antioxidants and to compositions comprising them. The novel lubricant compositions comprise the reaction product of a selected group of 5-tert-butyl-4-hydroxy-3-methyl(or tert-butyl)phenyl substituted carboxylic acid esters with thiodiethylene glycol and a mono-hydroxy alcohol with a carbon chain length higher than 4 C-atoms. The novel lubricant compositions are highly resistant to oxidative degradation and are capable of reducing the negative effects of deposits, such as black sludge, in motor combustion engines, particularly spark ignition internal combustion engines.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: April 11, 2006
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Hugo Camenzind, Paul Dubs, Roger Martin, David Eliezer Chasan, Gunnar Demme, James Robbins
  • Patent number: 7002037
    Abstract: The present invention relates to novel resolution methods, which are useful in the preparation of enantiomerically enriched intermediates which in their turn are useful in the prepartion of compounds with a pharmacological effect on the insulin resistance syndrome (IRS). It is such a process that the present inventions sets out to define, and more particularly for the preparation of the (S)-enantioner of certain 2-ethoxy-3-(4-hydroxyphenyl)propanoic acids and derivatives thereof.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: February 21, 2006
    Assignee: AstraZeneca AB
    Inventors: Kjell Andersson, Alan Eric Fischer, Panagiotis Ioannidis, Magnus Larsson, Maria Larsson, Sivaprasad Sivadasan
  • Patent number: 6946486
    Abstract: The invention features quaternary ammonium compounds of formula I, described herein, and their use in treating asthma, chronic obstructive pulmonary disorder, allergic rhinitis, and infectious rhinitis.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: September 20, 2005
    Assignee: Pharmacia & Upjohn Co.
    Inventor: John Gregory Slatter
  • Patent number: 6939988
    Abstract: Novel ?-aryl-?-oxysubstituted alkylcarboxylic acids of the formula (I) and compositions containing them. The compounds have hypolipidemic, antihyperglycemic uses.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: September 6, 2005
    Assignee: Dr. Reddy's Laboratories Limited
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Ashok Channaveerappa Bajji, Shivaramayya Kalchar, Rajagopalan Ramanujam, Ranjan Chakrabarti
  • Patent number: 6921822
    Abstract: The present invention relates to a process for preparing stereoisomerically enriched 4-aryl-4-hydroxybutanoic acid derivatives by reducing 4-aryl-4-ketobutanoic acid derivatives in the presence of ruthenium-containing catalysts.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: July 26, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Christian Militzer, Boris Bosch, Markus Eckert, Benjamin Meseguer
  • Patent number: 6916890
    Abstract: The present invention discloses reworkable epoxy compositions suitable for encapsulation of and underfill for electronic components including (a) the epoxidized reaction product of a multifunctional 1-alkenyl ether or 1-cycloalkenyl ether and an alkenyl carboxylic acid, the epoxidized reaction product having two or more thermally labile alpha-alkoxy ester linkages; and (b) a curing agent for the epoxy component. The epoxy composition, when cured, provides a composition which is thermally reworkable, the weak ?-alkoxy ester linkages providing for the reworkable aspect of the invention.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: July 12, 2005
    Assignee: Henkel Corporation
    Inventors: John G. Woods, Susanne D. Morrill
  • Patent number: 6897335
    Abstract: A process for the preparation of 2-oxocarboxylic acid esters represented by the following general formula (I), comprising by oxidizing a 2-hydroxycarboxylic acid ester represented by the following general formula (II) in the presence of a nitroxyl radical represented by the following general formula (III), a hypochlorite, a metal bromide and water with the pH of the reaction system being kept within the range of 5 to 7: (I) (II) (III) wherein R1 and R2 are each independently an alkyl group, an alkenyl group, an alkynyl group, an aryl group or an aralkyl group, which each may be substituted with substituents; and R3 is a hydrogen atom, an alkoxyl group, an aralkyloxy group, an acyloxy group or a hydroxyl group.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: May 24, 2005
    Assignee: Kuraray Co., Ltd.
    Inventors: Fumihiko Okabe, Masahiro Torihara, Yoshin Tamai
  • Patent number: 6894186
    Abstract: Methyl (R)-2-(R1OSO2)-2-(2-chlorophenyl)acetates useful as intermediates in the preparation of methyl (S)-2(2-chlorophenyl)-2-(4,5,6,7-tetrahydrothieno[3,2-c]-5-pyridyl)acetate.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: May 17, 2005
    Assignee: Sanofi-Synthelabo
    Inventors: André Bousquet, Andrée Musolino
  • Patent number: 6881868
    Abstract: Compounds of formula (I), wherein R1 and R2 are, independently of one another, H,C1-C6alkyl, C1-C6halogenalkyl, C1-C6alkoxyl, C1-C6alkoxy-C1-C6alkyl, or C1-C6alkoxy-C1-C6alkyloxy, and R3 is C1-C6alkyl, are obtainable in high yiedls by stereoselective addition of R3-substituted propionic acid esters to R1- and R2-substituted benzaldehydes of formula R—CHO to form corresponding 3-R-3-hydroxy-2-R3-propionic acid esters, conversion of the OH group to a leaving group, subsequent regioselective elimination to form 3-R-2-R3-propenic acid esters, and reduction to corresponding 3-R-2-R3-allyl alcohols and their enantioselective hydrogenation, wherein R is (a).
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: April 19, 2005
    Assignee: Speedel Pharma AG
    Inventors: Stefan Stutz, Peter Herold, Felix Spindler, Walter Weissensteiner, Thomas Sturm
  • Patent number: 6867321
    Abstract: The present invention provides a method for producing compound (XIV) useful as an intermediate for pharmaceutical agents efficiently and economically on an industrial scale without using ozone oxidation and highly toxic reagent, and an intermediate used for this method. Particularly, the present invention provides a method for producing a compound having an absolute configuration represented by the formula (XV) and an enantiomer thereof without using a technique such as optical resolution and the like, and an intermediate used for this method. (1) Compound (XIII) as a starting material is led to compound (I), and after introducing a protecting group, subjected to reduction and cyclization to give compound (XIV). Particularly, compound (XIII) as a material is led to compound (I) via compound (XX) to produce compound (XIV).
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: March 15, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Tetsuya Ikemoto, Dongguo Piao
  • Patent number: 6852874
    Abstract: A process for catalyzing asymmetric dihydroxylations of olefins employs an Os(VI) complex as a catalytic intermediate in the formation of chiral vicinal diol products. The process requires a chiral bidentate ligand that favors diol formation in the “second cycle” of asymmetric dihydroxylation.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: February 8, 2005
    Assignee: The Scripps Research Institute
    Inventors: K. Barry Sharpless, Malin Andersson, Robert Epple, Valery Fokin
  • Publication number: 20040254392
    Abstract: A method for producing an optically active 3,5-dihydroxyhexanoic acid derivative by stereoselectively reducing an optically active 3-oxo-5-hydroxyhexanoic acid derivative is provided. The method, which requires neither an ultralow-temperature reactor, an incubator, nor protection of the 5-position hydroxy group, is simple and economical.
    Type: Application
    Filed: April 13, 2004
    Publication date: December 16, 2004
    Inventors: Masanobu Sugawara, Kenji Inoue
  • Publication number: 20040248849
    Abstract: The present invention relates to novel antidiabetic compounds, their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs and pharmaceutically acceptable compositions containing them. More particularly, the present invention relates to novel 3-aryl-&agr;-oxy substituted propanoic acids of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs and pharmaceutically acceptable compositions containing them. Formula (I) where R1 represents t-butyldimethyl silyl, trimethyl silyl or alkoxyalkyl group; R2 represents hydrogen or substituted or unsubstituted (C1-C6)alkyl group.
    Type: Application
    Filed: July 28, 2004
    Publication date: December 9, 2004
    Inventors: Rajender Kumar Potlapally, Venkata Rama Murali Krishna Reddy Velagala, Ramabhadra Sarma Mamillapalli, Om Reddy Gaddam
  • Patent number: 6812368
    Abstract: The invention relates to a novel process of diastereoselective hydrogenation of 1,3-hydroxyketones of formula (I) wherein R, R′ and R″ are as defined in claim 1 which is carried out in a solvent in the presence of a magnesium salt, a heterogeneous platinum catalyst and optionally an oxidant.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: November 2, 2004
    Assignee: Solvias AG
    Inventors: Martin Studer, Stephan Burkhardt, Ulrike Nettekoven
  • Patent number: 6794532
    Abstract: Process for enantioselectively hydrogenating prochiral ketones to (S)-alcohols using platinum catalysts in the presence of cinchonines or quinidines as modifiers and in the presence of hydrogen, which is characterized in that the modifiers used are cinchonines unsubstituted in the 3-position, 3-ethylidenyl- or 9-methoxycinchonines or derivatives thereof in which the quinoline ring is replaced by other rings.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: September 21, 2004
    Assignee: Solvias AG
    Inventors: Martin Studer, Stephan Burkhardt, Andreas Pfaltz, Christian Exner
  • Patent number: 6753441
    Abstract: The invention concerns a method for preparing p-hydroxymandelic compounds optionally substituted and their derivatives. More particularly, it concerns a method for preparing p-hydroxymandelic acid and methoxy-3 p-hydroxymandelic acid and their derivatives. The invention concerns a method for preparing p-hydroxymandelic compounds optionally substituted and their derivatives, which consists in condensing in water, in the presence of an alkaline agent, an aromatic compound bearing at least a hydroxyl group and whereof the position in para is free, with glyoxylic acid, said method being characterised in that the reaction is carried out in the presence of an efficient amount of a compound bearing at least two carboxylic functions.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: June 22, 2004
    Assignee: Rhodia Chimie
    Inventors: Isabelle Jouve, Frederic Fournet, Jean Fragnon
  • Publication number: 20040116519
    Abstract: The invention features quaternary ammonium compounds of formula I, described herein, and their use in treating asthma, chronic obstructive pulmonary disorder, allergic rhinitis, and infectious rhinitis.
    Type: Application
    Filed: October 17, 2003
    Publication date: June 17, 2004
    Inventor: John Gregory Slatter
  • Publication number: 20030233001
    Abstract: The invention relates to a process for the manufacture of a compound of formula 1
    Type: Application
    Filed: May 2, 2003
    Publication date: December 18, 2003
    Inventor: Thomas Storz
  • Patent number: 6660879
    Abstract: A novel 3-aryl-2-hydroxypropionic acid derivative, a process and intermediate for its manufacture, pharmaceutical preparations containing it and the use of the compound in clinical conditions associated with insulin resistance.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: December 9, 2003
    Assignee: AstraZeneca AB
    Inventor: Kjell Andersson
  • Patent number: 6653258
    Abstract: Fungicidal compounds of the formula (I): and stereoisomers thereof, wherein R1 is optionally substituted aryl or optionally substituted heteroaryl; Y is oxygen, sulphur or NR4; R2, R3 and R4, which may be the same or different, are hydrogen, C1-4 alkyl or C2-4 alkenyl; X is halogen, C1-4 alkyl, C2-4 alkenyl, C1-4 alkoxy, nitro or cyano, and n is 0 or an integer of 1 to 4; provided that when Y is oxygen, n is 0 and R1 is unsubstituted phenyl at least one of R2 and R3 is other than hydrogen or methyl.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: November 25, 2003
    Assignee: Syngenta Limited
    Inventors: John M Clough, Christopher R A Godfrey, Paul J de Fraine, Michael G Hutchings, Vivienne M Anthony
  • Patent number: 6646168
    Abstract: The present invention provides a supported osmate useful as a reusable catalyst in the preparation of vicinal diols. The present invention also relates to a process for the preparation of supported osmates of the formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules and use thereof in the preparation of vicinal diols by asymmetric dihydroxylation (AD) of olefins in presence of cinchona alkaloid compounds.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: November 11, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Boyapati Manoranjan Choudary, Naidu Sreenivasa Chowdari, Mannepalli Lakshmi Kantam, Kondapuram Vijaya Raghavan
  • Patent number: 6605716
    Abstract: A process for the preparation of hydroxy and amino compounds, in which, in a first step, an aldehyde, ketone or imine is reacted in a Reformatsky reaction with a reactive halogen compound and zinc, in carboxylic esters as solvents, the reactive halogen compound being brought into contact with the zinc at the same time as or after contact with the aldehyde, ketone or imine, and in a second step, the reaction product of the first step is hydrolyzed.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 12, 2003
    Assignee: Consortium fuer Elektrochemische Industries, GmbH
    Inventors: Klaus Sorger, Hermann Petersen
  • Patent number: 6586463
    Abstract: Compounds having the general structure: which are useful for the treatment of a variety of diseases and conditions, such as bone disorders.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: July 1, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Mitchell Anthony deLong, David Lindsey Soper, John August Wos, Biswanath De
  • Patent number: 6586468
    Abstract: A &ohgr;-substituted phenyl-prostaglandin of formula (I), a process for the preparation thereof, a mediciament comprising it as active ingredient (all symbols have the same meaning as described in the specification). The compounds of the formula (I) bind strongly in PGE2 receptor (especially subtype EP4) and therefore are useful for the prophylaxis and/or treatment of immune diseases (autoimmune diseases (amyotrophic lateral sclerosis (ALS) etc.), post-transplantation graft rejection, etc.), asthma, abnormal bone formation, neurocyte death, pulmopathy, hepatopathy, etc. They are also related to sleeping disorders and platelet coagulations, and therefore they are also applicable to these diseases.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: July 1, 2003
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Toru Maruyama, Shuichi Ohuchida
  • Patent number: 6583310
    Abstract: A non-catalytic process for producing esters, the process comprising reacting an ammonium salt of a carboxylic acid with an alcohol and removing ammonia from the reaction mixture. Selectivities for the desired ester product can exceed 95 percent.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: June 24, 2003
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Yuval Halpern
  • Patent number: 6576663
    Abstract: Compositions and methods for the treatment of dry eye and related diseases utilizing 6-keto-PGF1&agr; and its analogs are disclosed.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: June 10, 2003
    Assignee: Alcon, Inc.
    Inventor: Peter G. Klimko
  • Patent number: 6566547
    Abstract: This invention relates to derivatives of acrylic acid useful as fungicides, to processes for preparing them, to fungicidal compositions containing them, and to methods of combating fungi, especially fungal infections in plants, using them.
    Type: Grant
    Filed: October 11, 1985
    Date of Patent: May 20, 2003
    Assignee: Zeneca Limited
    Inventors: Michael J Bushell, Kevin Beautement, John M Clough, Vivienne M Anthony, Paul deFraine, Christopher R Godfrey
  • Patent number: 6559335
    Abstract: The present invention relates to an improved process for the preparation of 3-aryl-2-hydroxy propanoic acid derivatives of the formula (1) useful as an intermediate for the preparation of many pharmaceutically active compounds.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: May 6, 2003
    Assignee: Dr. Reddy's Laboratories Limited
    Inventors: Potlapally Rajender Kumar, Siripragada Mahender Rao, Kotra Narasimha Murthy, Sirisilla Raju, Mamillapalli Ramabhadra Sarma, Gaddam Om Reddy
  • Patent number: 6555577
    Abstract: The present invention relates to compounds of the general formula (I) The compounds are useful in the treatment and/or prevention of conditions mediated by nuclear receptors, in particular the Peroxisome Proliferator-Activated Receptors (PPAR).
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: April 29, 2003
    Assignee: Novo Nordisk A/S
    Inventors: John Patrick Mogensen, Per Sauerberg, Paul Stanley Bury, Lone Jeppesen, Ingrid Pettersson
  • Patent number: 6552234
    Abstract: The present invention discloses a process for the preparation of a novel heterogeneous osmate catalyst of the general formula (S—NR3)2OsO4.nH2O wherein S is a support, R is an alkyl group, n is the number of water molecules by reacting potassium osmate with supported quaternary ammonium species in an aqueous solvent.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: April 22, 2003
    Assignee: Council of Scientific and Industrial Research
    Inventors: Boyapati M. Choudary, Naidu S. Chowdari, Mannepalli L. Kantam, Kondapuram V. Raghavan
  • Patent number: 6531596
    Abstract: The present invention relates to an improved process for the preparation of novel antidiabetic compounds having formula (1) where R1 represents hydrogen or lower alkyl group and X represents hydrogen or halogen atom.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: March 11, 2003
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Mahender Rao Siripragada, Prabhakar Chebiyyam, Rajender Kumar Potlapally, Chandra Sekhar Batchu, Ramabhadra Sarma Mamillapalli, Om Reddy Gaddam
  • Patent number: 6495217
    Abstract: The invention relates to chiral compounds of formula I wherein R1, R2, X, Y1 and Y2 have the meanings defined herein, as well as to liquid crystalline mixtures comprising at least one chiral compound of formula I.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: December 17, 2002
    Assignee: Merck Patent GmbH
    Inventor: Louise Farrand
  • Patent number: 6492550
    Abstract: Inhibitors of the cytosolic phospholypase A2 enzymes are provided which are of use in controlling a wide variety of inflammatory diseases. The inhibitors of the present invention have the general formula where X, Z, X1, R1, R2, Ra and Rb are as defined in the specification.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: December 10, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Jacques Banville, Serge Plamondon, Yonghua Gai, Neelakantan Balasubramanian
  • Patent number: 6492545
    Abstract: A novel process in which an optically active alcohol compound having a desired absolute configuration and a high optical purity can be obtained by asymmetrically hydrogenating a &bgr;-keto acid compound through a simple operation. An optically active alcohol represented by general formula (III) as defined is obtained by asymmetrically hydrogenating a &bgr;-keto ester compound represented by general formula (I) as defined in the presence of at least one ruthenium complex having as a ligand an optically active tertiary diphosphine compound represented by general formula (II) as defined.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: December 10, 2002
    Assignee: Takasago International Corporation
    Inventors: Takao Saito, Tohru Yokozawa, Kazuhiko Matsumura, Noboru Sayo
  • Publication number: 20020177726
    Abstract: The present invention relates to an improved process for the preparation of 3-aryl-2-hydroxy propanoic acid derivatives of the formula (1) 1
    Type: Application
    Filed: April 17, 2001
    Publication date: November 28, 2002
    Applicant: DR. REDDY'S RESEARCH FOUNDATION
    Inventors: Potlapally Rajender Kumar, Siripragada Mahender Rao, Kotra Narasimha Murthy, Sirisilla Raju, Mamillapalli Ramabhadra Sarma, Gaddam Om Reddy
  • Patent number: 6451859
    Abstract: Compounds having a structure according to the following formula: are effective in treating disorders such as bone disorders and glaucoma in a subject in need thereof.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: September 17, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Mitchell Anthony deLong, David Lindsey Soper, John August Wos, Biswanath De
  • Patent number: 6444850
    Abstract: A fungicidal compound of formula (I) having a fluorovinyloxyphenyl moiety and stereoisomers thereof are useful for protecting crops from fungal diseases: wherein: X is CH or N; Y is O or S; Z is O or NH; R1 is hydrogen or CF3; and R2 is hydrogen, a C1-10 alkyl, naphthyl, thiophenyl or a phenyl group optionally carrying one or more substituents selected from the group consisting of C1-6 alkyl, halogen-substituted C1-6 alkyl, C1-6 alkoxy, phenoxy, halogen, and methylenedioxy radicals.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: September 3, 2002
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Chwang-Siek Pak, Bum-Tae Kim, No-Kyun Park, Gyung-Ja Choi, Heung-Tae Kim
  • Patent number: 6414179
    Abstract: Inhibitors of the cytosolic phospholipase A2 enzymes are provided which are of use in controlling a wide variety of inflammatory diseases. The inhibitors of the present invention have the general formula where X, Z, R1, R2, R3, R4, Ra and Rb are as defined in the specification.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: July 2, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Jacques Banville, Anne Marinier, Yonghua Gai, Serge Plamondon, Stephan Roy, Neelakantan Balasubramanian
  • Patent number: 6399770
    Abstract: A process for preparing a &bgr;-hydroxyester comprising reducing a &bgr;-keto ester in the presence of a salt of ammonium borohydride.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: June 4, 2002
    Assignee: Otsuka Kagaku Kabushiki Kaisha
    Inventor: Yutaka Kameyama
  • Publication number: 20020049350
    Abstract: A single batch process for preparing (R)-benzyl-4-hydroxy-2-pentynoate by reacting (R)-3-butyn-2-ol with 1,1,1,3,3,3-hexamethyldisilazane to silylate the starting alcohol, followed by deprotonation with an alkyl lithium compound, then a reaction with a haloformate compound, and finally a hydrolysis reaction to arrive at the product ester.
    Type: Application
    Filed: June 26, 2001
    Publication date: April 25, 2002
    Inventors: Xiaoyong Fu, Chou-Hong Tann, T.K. Thiruvengadam, Jianguo Yin, Timothy L. McAllister, Cesar Colon