Sulfonate Esters (i.e., Compounds Having The Sulfonate Group, -o-s(=o)(=o) , Wherein The Single Bonded Oxygen Is Bonded Directly To Carbon, Which Carbon May Be Single Bonded To Any Atom But May Be Multiple Bonded Only To Carbon) Patents (Class 558/44)
  • Publication number: 20030027859
    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: Application
    Filed: January 4, 2002
    Publication date: February 6, 2003
    Inventor: Kjell Andersson
  • Publication number: 20030022934
    Abstract: The invention relates to novel phenoxyphenyl alkanesulphonates, processes for their preparation, their use for producing medicaments for the treatment and/or prophylaxis of diseases, in particular for the treatment of states of pain and neurodegenerative disorders
    Type: Application
    Filed: September 26, 2001
    Publication date: January 30, 2003
    Inventors: Markus Heil, Heinrich Meier, Paul Naab, Arnd Voerste, Jean-Marie-Viktor De Vry, Dirk Denzer, Frank Mauler, Klemens Lustig, Jan-Bernd Lenfers
  • Patent number: 6506539
    Abstract: A complex of a dye cation and an anionic TCNQ derivative of the formula (I): in which [Dye]+ is a dye cation, L1 is a linking group, R1 is a substituent group, p is an integer of 1-4, and r is an integer of 0-3 under the condition of 1<p+r<4, is favorably employable as a dye compound for preparing a recording layer of CD-R or DVD-R.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: January 14, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinichi Morishima, Takashi Usami
  • Patent number: 6417382
    Abstract: The invention relates to a process suitable for large-scale industrial use for preparing compounds of general formula (I) wherein: R1 denotes a group selected from among methyl, ethyl, propyl, cyclopentyl, cyclohexyl, phenyl, benzyl and —C(Me2)phenyl, each of which is optionally mono-, di- or trisubstituted by hydroxy; and, R2 denotes a group selected from among methyl, ethyl, propyl and benzyl.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: July 9, 2002
    Assignee: Boehringer Ingelheim Pharma KG
    Inventors: Joerg Brandenburg, Rolf Schmid, Rainer Soyka, Ralf Anderskewitz, Rolf Bauer, Rainer Hamm, Jutta Kroeber
  • Patent number: 6410773
    Abstract: Novel and useful optical active 2-aralkyl-3-sulfonyloxy-1-propanol and 2-aralkyl-3-sulfonyloxypropionic acid are provided by using an optical active 2-aralkyl-3-acyloxy-1-propanol as a starting material. Furthermore, an optical active 2-aralkyl-3-thiopropionic acid, which is an important intermediate of enkephalinase inhibitor, is provided. According to the present invention, industrially useful optical active sulfonic acid ester derivatives can be provided.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: June 25, 2002
    Assignee: Kaneka Corporation
    Inventors: Yoshihiko Yasohara, Kenji Miyamoto, Shigeru Kawano, Junzo Hasegawa
  • Patent number: 6407267
    Abstract: A method for the preparation of citalopram comprising reaction of a compound of Formula (IV), wherein R is C1-6 alkyl, acyl, C1-6 alkylsulfonyl or arylsulfonyl, with 3-(N,N-dimethylamino)-propyl magnesium halide, to prepare citalopram.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: June 18, 2002
    Assignee: H. Lundbeck A/S
    Inventors: Michael Harold Rock, Hans Petersen, Peter Ellegaard
  • Publication number: 20020068722
    Abstract: Inhibitors of the cytosolic phospholypase A2 enzymes are provided which are of use in controlling a wide variety of inflammatory diseases.
    Type: Application
    Filed: February 8, 2001
    Publication date: June 6, 2002
    Inventors: Jacques Banville, Serge Plamondon, Yonghua Gai, Neelakantan Balasubramanian
  • Publication number: 20020058698
    Abstract: The present invention is directed to the synthetic processes outlined in Schemes 1, 2 and 3, to the novel intermediates recited therein, and to the uses of these compounds as synthetic precursors to the pseudopterosins. Other embodiments and aspects of the present invention include the novel synthetic procedures described herein.
    Type: Application
    Filed: June 27, 2001
    Publication date: May 16, 2002
    Inventor: Elias J. Corey
  • Patent number: 6388126
    Abstract: The invention features the use of flourosulphonates to release the organic bases from their fluorohydrate. This use is characterised in that a hydrogenofluorosulphonate of an organic base is formed and in that the hydrofuoric acid which is associated with the said base or with one of its precursors is separated therefrom. The invention is useful in organic synthesis applications.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: May 14, 2002
    Assignee: Rhodia Chimie
    Inventors: Laurent Saint-Jalmes, Marcel Morel
  • Publication number: 20020040043
    Abstract: There is provided compounds of formula I, 1
    Type: Application
    Filed: April 23, 2001
    Publication date: April 4, 2002
    Inventor: Thomas Antonsson
  • Patent number: 6362357
    Abstract: This invention provides a process for conducting Stille coupling reactions. The processes of the present invention make use of N-heterocyclic carbenes as ancillary ligands in Stille couplings of aryl halides.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: March 26, 2002
    Assignee: University of New Orleans Research & Technology Foundation
    Inventors: Steven P. Nolan, Jinkun Huang, Mark L. Trudell, Chunming Zhang
  • Patent number: 6350875
    Abstract: The synthesis of asymmetric tetrasubstituted cyclooctatetraenes (“COTs”) and the use of said compounds in organic light emitting diodes is reported, wherein said COTs represent a class of wide gap electron transporters that are readily deposited in vacuum.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: February 26, 2002
    Assignee: The University of Southern California
    Inventors: William P. Weber, Ping Lu, Mark E. Thompson, Haiping Hong
  • Patent number: 6313336
    Abstract: A process for using sludge formed in the preparation of a high BN overbased alkylaryl sulfonate or overbased sulfurized alkylphenate, wherein the sludge is treated with an acidic reactant to convert large particles of the alkaline earth metal salt in the sludge into calcium sulfonate, then is reacted with an excess of alkaline earth base and either alkylaryl sulfonic acid or alkylphenol to produce a reaction product, which could be a low or high overbased alkylaryl sulfonate or overbased sulfurized alkylphenate.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: November 6, 2001
    Assignee: Chevron Oronite S.A.
    Inventor: Jean Louis Le Coënt
  • Patent number: 6303837
    Abstract: Using the process according to the invention, it is possible to provide, with few reaction steps, a novel route to &agr;-substituted ring systems, which optionally have further substituents.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: October 16, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christoph Gürtler, Manfred Jautelat
  • Patent number: 6248573
    Abstract: An (S)-1-phenyl-2-substituted propane derivative shown by the following formula (I) wherein R1 and R2 represent a lower alkyl group, etc., or R1 and R2 may form together an alkylene group, etc.; R3, R4 and R5 represent a hydrogen atom, etc.; and X represents a hydroxyl group which may be protected with a protective group, or a halogen atom etc., can readily be produced (i) by permitting a microorganism belonging to the genus Torulaspora, the genus Candida, the genus Pichia or the like to act on a phenylacetone derivative and asymmetrically reducing the compound, or (ii) by sterically inverting an (R)-enantiomer. (R,R)-1-phenyl-2-[(2-phenyl-1-methylethyl)amino]ethanol derivative having a high optical purity can easily be obtained from the compound of the formula (I). The ethanol derivative is useful as an anti-obesity agent and the like.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: June 19, 2001
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Michio Ito, Noritsugu Yamasaki, Yoshinori Kobayashi, Kiyoshi Ikura
  • Patent number: 6248883
    Abstract: Provided are methods of purification of an organic lithium salt comprising the steps of: (a) dissolving an impure organic lithium salt in a solution comprising an organic complexing solvent; (b) crystallizing from said solution a solid solvate complex comprising said lithium salt and said organic complexing solvent; (c) separating said solid solvate complex from said solution; (d) dissociating said solid solvate complex to yield: (i) said lithium salt in a solid form, and, (ii) a volatile composition comprising said organic complexing solvent; and, (e) removing said volatile composition to yield said lithium salt in a solid form of purity greater than the purity of said impure lithium salt. The present invention also pertains to electrolytes for electric current producing cells comprising such purified lithium salts.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: June 19, 2001
    Assignee: Moltech Corporation
    Inventors: Alexander Gorkovenko, Grigorii L. Soloveichik
  • Patent number: 6194586
    Abstract: This invention discloses an efficient process for selectively sulfonating the primary alcohol of a diol containing both primary and secondary alcohols.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: February 27, 2001
    Assignees: Eli Lilly and Company, Wayne State University, University of Hawaii
    Inventors: Michael J. Martinelli, Eric D Moher
  • Patent number: 6136975
    Abstract: By a novel process, trifluoroacetoacet-anilides of the formula ##STR1## in which R.sup.1 is as defined in the description, can be prepared by reacting trifluoroacetoacetyl chloride with anilines of the formula ##STR2## if appropriate in the presence of an acid binder and if appropriate in the presence of a diluent.The compounds of the formula (I) are suitable intermediates for preparing herbicidally active uracil derivatives.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: October 24, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhard Lantzsch, Karl Steinbeck, Ulrich Kampfen
  • Patent number: 6034127
    Abstract: Amidino and benzamidino compounds, including compounds of the formula: ##STR1## wherein R.sup.1 -R.sup.4, R.sup.6 -R.sup.9, Y, Z, n and m are set forth in the specification, as well as hydrates, solvates or pharmaceutically acceptable salts thereof, that inhibit a number of proteolytic enzymes are described. Also described are methods for preparing the compounds of Formula I.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: March 7, 2000
    Assignee: 3-Dimensional Pharmaceuticals, Inc.
    Inventors: Tianbao Lu, Bruce E. Tomczuk, Carl R. Illig, Richard M. Soll
  • Patent number: 6020513
    Abstract: The instant invention provides dihydronaphthalene and naphthalene compounds, intermediates, formulations, and methods for use in the treatment of bone loss or bone resorption.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: February 1, 2000
    Assignee: Eli Lilly and Company
    Inventors: Henry Uhlman Bryant, Thomas Alan Crowell, Charles David Jones
  • Patent number: 5958782
    Abstract: A fluorescent ionophoric compound is disclosed that includes a complexing moiety, such as a cryptand or crown-ether portion, and a fluorescing moiety such as a coumarin portion. The coumarin portion may be substituted at the 3-position with an electron withdrawing or polarizable group such as a substituted aromatic group or a substituted heterocyclic group having a heteroatom in at least one of its alpha positions. The compound, which exhibits good photostability, can be incorporated into cation-sensing composite structures by means of convenient points of covalent attachment.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: September 28, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James G. Bentsen, Shih-Hung Chou, Elisa M. Cross, Kurt J. Halverson, John E. Trend, Cary A. Kipke, Masao Yafuso, Sanjay L. Patil
  • Patent number: 5952462
    Abstract: Antigens capable of eliciting antibodies which can catalyze chemical reactions, in particular, the cleavage or formation of a peptide linkage, comprising a hapten or a hapten and a suitable carrier molecule are disclosed. Haptens include, among others, silicon and boron containing compounds. Antibodies which are catalytically active for chemical reactions, in particular, the cleavage or formation of a selected peptide linkage or an ester bond, and which are elicited by such antigens are disclosed as well as methods for producing the antibodies and methods for catalyzing the cleavage or formation of a peptide linkage or in ester bond in a molecule.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: September 14, 1999
    Assignee: IGEN International Inc.
    Inventors: Michael J. Powell, Richard C. Titmas, Richard J. Massey
  • Patent number: 5922670
    Abstract: Dimer alcohol bis-sulfates, trimer alcohol tris-sulfates and ether sulfates thereof are prepared by reacting dimer alcohols, trimer alcohols, or alkylene oxide adducts thereof with a sulfating agent, and then neutralizing the reaction product with an aqueous base material.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: July 13, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Georg Knuebel, Alfred Westfechtel, Gerhard Hermanns, Rainer Hoffmann, Hans-Christian Raths
  • Patent number: 5830619
    Abstract: Photoacid generators advantageous for use in applications such as photoacid generators used in chemically amplified resists are disclosed. These compounds are based on an ortho nitro benzyl configuration employing an .alpha. substituent having high bulk, steric characteristics, and electron withdrawing ability. The enhanced efficacy is particularly found in compounds both having a suitable .alpha. substituent and a second ortho substituent with large electron withdrawing and steric effects.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: November 3, 1998
    Assignee: Lucent Technologies Inc.
    Inventors: Evelyn Chin, Francis Michael Houlihan, Omkaram Nalamasu
  • Patent number: 5716990
    Abstract: Nitrogen mustard pro-drugs of the formula ##STR1## are disclosed where R is the residue of an .alpha.-amino acid RNH.sub.2 and M is a disubstituted amino "mustard" group, useful in antibody directed enzyme pro-drug therapy in the treatment of cancer.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: February 10, 1998
    Assignee: Cancer Research Campaign Technology Limited
    Inventors: Kenneth D. Bagshawe, Michael Jarman, Caroline Joy Springer
  • Patent number: 5684198
    Abstract: Amides having formula I: ##STR1## wherein E, X, R.sup.2 and R.sup.3 have the meanings given in the specification, and pharmaceutically acceptable salts and pharmaceutically acceptable in vivo hydrolysable esters thereof,which are useful in the treatment of urinary incontinence. Further provided are processes for preparing the aides and pharmaceutical compositions containing them.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: November 4, 1997
    Assignee: Imperial Chemical Industries, PLC
    Inventors: Keith Russell, Cyrus John Ohnmacht, Keith Hopkinson Gibson
  • Patent number: 5658951
    Abstract: Diphenylcyclopropyl analogs in which one or more of the phenyl rings includes alkoxy substituents including a dialkylaminoalkoxy group, an unsubstituted piperazine alkoxy group, a substituted piperazine alkoxy group, an unsubstituted piperidine alkoxy group, and a substituted piperidine alkoxy group, and which may have one or two alkyl groups bonded to the cyclopropane. The compounds are useful as antiestrogens and anti-tumor agents.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 19, 1997
    Assignee: Research Corporation Technologies
    Inventors: Robert A. Magarian, Joseph T. Pento, Lynette Overacre
  • Patent number: 5637738
    Abstract: Described herein is a process for the preparation of (1S,2R)-1,2-epoxy-1,2,3,4-tetrahydronaphthalene having the Formula (I): ##STR1## which comprises the steps of (a) hydrogenating the compound of Formula (II) to form cis-(1R, 2S)-1,2-dihydroxy-1,2,3,4-tetrahydronaphthalene having the Formula (V): ##STR2## (b) reacting the dihydroxy compound of Formula (V) with a sulphonyl halide of formula R.sup.1 SO.sub.2 Z wherein R.sup.1 is methyl, ethyl, trifluoromethyl, phenyl or p-tolyl, and Z is fluorine, chlorine, bromine or iodine to give a bis-sulphonyl ester of formula (X): ##STR3## and (c) treating the bis-sulphonyl ester (X) with an alkali metal carbonate or alkali metal hydroxide to give the compound of Formula (I).
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: June 10, 1997
    Assignee: Zeneca Limited
    Inventors: Andrew J. Blacker, Stephen M. Brown, Derek R. Boyd, Gary N. Sheldrake
  • Patent number: 5587504
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1## The 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative can be prepared in a high yield according to the present invention from a 2-amino-5-halogeno-3-nitropyridine derivative through amidation, N-alkylation and reductive cyclization.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: December 24, 1996
    Assignees: Eisai Co., Ltd., Eisai Chemical Co., Ltd.
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 5562866
    Abstract: Certain double-tailed alcohol ether sulfates of specified chemical structures are formulated with a hydrotrope or a co-surfactant. The formulations are useful for various surfactant utilities including use in hard water systems.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: October 8, 1996
    Assignee: Albemarle Corporation
    Inventors: Patrick C. Hu, Raynold J. Corona
  • Patent number: 5557002
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1## The 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative can be prepared in a high yield according to the present invention from a 2-amino-5-halogeno-3-nitropyridine derivative through amidation, N-alkylation and reductive cyclization. The halogen atom introduced at the 5-position as a protective group against nitration can be eliminated simultaneously in the step which is conducted thereafter. Thus, this process is industrially advantageous.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 17, 1996
    Assignees: Eisai Co., Ltd., Eisai Chemical Co., Ltd.
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 5508461
    Abstract: An (S)-1-phenyl-2-substituted propane derivative shown by the following formula (I) ##STR1## wherein R.sup.1 and R.sup.2 represent a lower alkyl group, etc., or R.sup.1 and R.sup.2 may form together an alkylene group, etc.; R.sup.3, R.sup.4 and R.sup.5 represent a hydrogen atom, etc.; and X represents a hydroxyl group which may be protected with a protective group, or a halogen atom etc., can readily be produced (i) by permitting a microorganism belonging to the genus Torulaspora, the genus Candida, the genus Pichia or the like to act on a phenylacetone derivative and asymmetrically reducing the compound, or (ii) by sterically inverting an (R)-enantiomer. (R,R)-1-phenyl-2-[(2-phenyl-1-methylethyl)amino]ethanol derivative having a high optical purity can easily be obtained from the compound of the formula (I). The ethanol derivative is useful as an anti-obesity agent and the like.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: April 16, 1996
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Michio Ito, Noritsugu Yamasaki, Yoshinori Kobayashi, Kiyoshi Ikura
  • Patent number: 5460927
    Abstract: The invention provides a novel and economic method for the production of an activated propene from a malonitrile dimer which comprises reacting a compound of the formula (I) ##STR1## with a nucleophile D to provide a compound of the formula (II) ##STR2## wherein substituents A, B and E each individually represent hydrogen, a substituted or unsubstituted alkyl acyl carboxyl or aryl group or an electron withdrawing group, and X is a group capable of displacement via a substitution reaction.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: October 24, 1995
    Assignee: Eastman Kodak Company
    Inventor: Hugh M. Williamson
  • Patent number: 5395826
    Abstract: Compounds of the tautomeric formula Ia, Ib or Ic, ##STR1## where R is a radical of the formula ##STR2## are effective compounds for the treatment and prophylaxis of degenerative bone disorders. They are used as pharmaceuticals.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: March 7, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Christoph Naumann, Hans-Jochen Lang, Jurgen Sandow, Anne-Marie Moura
  • Patent number: 5354879
    Abstract: The present invention relates to a synthetic method of optically active starting materials for various medicaments, which are represented by Formula (I): ##STR1## wherein R.sup.1 is hydrogen or hydroxy protecting group; * is an asymmetric carbon; R.sup.2 ' is hydrogen or an optionally substituted lower alkyl; and Q is --CH.dbd.P(Ph).sub.3, --CH.sub.2 P(O)(OMe).sub.2, or --CH.sub.2 S(O)Me, in high optical purity on a large scale.In more detail, the present invention provides intermediates and a method for the production thereof for synthesizing optically active compounds which are able to inhibit activities of HMG-CoA reductase and are, therefore, useful for inhibition of cholesterol biosynthesis.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: October 11, 1994
    Assignee: Shionogi Seiyaku Kabushiki Kaisha
    Inventors: Toshiro Konoike, Yoshitaka Araki
  • Patent number: 5352786
    Abstract: The invention relates to new compounds, di(2-propyl) esters of (R)-, (S)- and (RS)-1-fluoro-2-phosphonomethoxy-3-p-toluenesulfonyloxypropane and the method of producing them. The compounds can be used with advantage in the preparation of N-(3-fluoro-2-phosphonomethoxypropyl) derivatives of heterocyclic purine and pyrimidine bases that have antiviral activity.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: October 4, 1994
    Assignee: Institute of Organic Chemistry and Biochemistry of the Academy of Sciences of the Czech Republic
    Inventors: Jindrich Jindrich, Antonin Holy
  • Patent number: 5342986
    Abstract: The present invention relates to fluorinated carboxylic acid esters of phosphonocarboxylic acids or phosphinocarboxylic acids, and the use thereof as surface-active agents.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: August 30, 1994
    Assignee: Bayer AG
    Inventors: Klaus Pohmer, Rainer Weber, Hans-Dieter Block, Cornelia Dorzhach-Lange, Hans-Heinrich Moretto
  • Patent number: 5294511
    Abstract: A photosensitive composition containing a compound having a group represented by formula(I) or (II), said group, when irradiated with actinic radiation, forming a carboxylic acid or a sulfonic acid: ##STR1## wherein R.sub.1 represents hydrogen, an alkyl group, or an aryl group; andR.sub.2 to R.sub.6 may be the same or different and each represents hydrogen, a halogen, an alkoxyl group, an aryloxyl group, cyano group, or an alkyl group, provided that at least one of R.sub.2 to R.sub.6 represents an alkoxyl or aryloxyl group and two of R.sub.2 to R.sub.6 may link to form a ring.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: March 15, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiaki Aoai, Mitsunori Ono
  • Patent number: 5274160
    Abstract: There is disclosed a process for producing an alkyl casylate by the reaction of a metal casylate or an enantiomer of a quaternary casylate with a trialkyl phosphite in the presence of a slight molar excess of sulfuric acid. According to one aspect of the invention the reaction is conducted under heat in the presence of concentrated sulfuric acid. When the reaction is complete, an organic layer that contains the alkyl casylate is isolated. In another aspect of the invention at least 1.0 equivalents of a trialkyl phosphite is added to a thoroughly dried enantiomer of camphorsulfonic acid, and the mixture optionally heated to about 80.degree. C. The reaction is allowed to proceed until camphorsulfonic acid is no longer present. Thereafter all phosphorus-containing species are selectively removed by distillation at reduced pressure to obtain a pure alkyl casylate in high yield.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: December 28, 1993
    Assignee: Syracuse University
    Inventor: Roger C. Hahn
  • Patent number: 5260428
    Abstract: A process for the detection of substances with hydrolase activity in a sample by mixing the sample with a hydrolase substrate and an oxidising agent, and the evaluating the resultant colour intensity, wherein, as hydrolase substrate, there is used at least one compound of the formula ##STR1## in which R.sup.1 is hydrogen or an alkoxy radical,R.sup.2 is hydrogen or halogen, an amino group or an alkoxy or aralkoxy radical,R.sup.3, R.sup.4, R.sup.5, R.sup.6, which can be the same or different, are hydrogen, halogen, carboxyl, a carbamoyl group, sulpho, an amino groups alkyl, an alkoxy radical, aralkoxy, alkylcarbonyl or alkoxycarbonyl, andX is a glycosyl, phosphate or acyl residue. Optionally R.sup.2 and R.sup.3, R.sup.3 and R.sup.4, R.sup.4 and R.sup.5, and R.sup.5 and R.sup.6 can be joined to form a ring system. At least one of R.sup.1 and R.sup.2 must be hydrogen and at least one of R.sup.1, R.sup.2 and R.sup.3 must not be hydrogen. Compounds in which X is .beta.-galactosyl are new.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: November 9, 1993
    Assignee: Boehringer Mannheim GmbH
    Inventors: Rupert Herrmann, Hans-Joachim Guder, Werner Guthlein, Manfred Kuhr, Johann Berger, Harvey Buck
  • Patent number: 5245075
    Abstract: Amino-derivative (poly)peroxycarboxylic acids which have the formula: ##STR1## wherein the symbols have the following meanings: R, R.sub.1, and R.sub.2, which may be equal to or different from one another, represent hydrogen atoms, alkyl groups or groups selected from R, R.sub.1 and R.sub.2, which taken together with the nitrogen atom to which they are linked, give rise to an aliphatic heterocyclic group, all of them being optionally substituted;A represents a (cyclo) alkylene group, an arylene group which may also be condensed with cycloaliphatic groups, a cycloalkylene-alkylene or an alkylene-cycloalkylene group, an arylene-alkylene or an alkylene-arylene group, which may be condensed with cyclo-aliphatic groups wherein said alkylene group may also be interrupted by --CONR.sub.3 groups, wherein R.sub.3 represents a hydrogen atom or an alkyl or aryl group;X.sup.- represents HSO.sub.4.sup.- or CH.sub.3 SO.sub.3.sup.- ; a process for their preparation; and their use as bleaching agents.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: September 14, 1993
    Assignee: Ausimont S.r.l.
    Inventors: Carlo Venturello, Claudio Cavallotti
  • Patent number: 5200544
    Abstract: A class of resist compositions sensitive to deep ultraviolet radiation includes a resin sensitive to acid and a composition that generates acid upon exposure to such radiation. A group of nitrobenzyl materials is particularly suitable for use as the acid generator.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: April 6, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Francis M. Houlihan, Thomas X. Neenan, Elsa Reichmanis
  • Patent number: 5189165
    Abstract: A process for preparing a compound I ##STR1## with A=t-butyl, aryl andR=alkyl, alkenyl, alkynyl, alkenynyl, cycloalkyl(alkyl), aryl, arylalkyl, alkyl-S-(-O)-arylby reacting a compound III ##STR2## with a compound IV ##STR3## under the conditions of a phase-transfer reaction, is described. The process gives excellent yields and is not associated with the unpleasant odor of mercaptans.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: February 23, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerhard Burdinski, Reinhard Kirsch, Hariolf Kottmann
  • Patent number: 5164527
    Abstract: Acylation or sulphonylation of aromatic compounds, one of which is selected from aromatic carboxylic and sulphonic acids and esters and anhydrides thereof, using an aluminosilicate catalyst having acidic sites.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: November 17, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventor: Alan B. Newton
  • Patent number: 5140044
    Abstract: A UCN-1028D derivative represented by the formula: ##STR1## has protein kinase C inhibitory activity and is expected to be used as an active ingredient in anti-tumor agents, etc.
    Type: Grant
    Filed: March 27, 1990
    Date of Patent: August 18, 1992
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Teruo Kishi, Hiromitsu Saito, Hiroshi Sano, Isami Takahashi, Tatsuya Tamaoki
  • Patent number: 5130462
    Abstract: Cyclobutane derivatives of the formulas ##STR1## wherein P is a hydroxy protecting group and X is a leaving group are useful intermediates in the preparation of antiviral compounds.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: July 14, 1992
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: William A. Slusarchyk, Robert Zahler
  • Patent number: 5110975
    Abstract: Isocyanatoalkyl sulphonates of the general formula ##STR1## wherein the substituent meanings are as given in the description are obtained by reacting the corresponding isocyanatoalkyl halides with sulphonic acid esters of the formula ##STR2## wherein R.sup.3 has the meanings given in the description. They are used as cross-linking agents in polyamines.
    Type: Grant
    Filed: December 12, 1990
    Date of Patent: May 5, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Georg Schroeder, Dieter Arlt, Manfred Jautelat
  • Patent number: 5091431
    Abstract: Compounds having an optionally-substituted purine derivative portion and a carbobicyclic or heterobicyclic portion, which compounds are useful as phosphodiesterase inhibitors, are disclosed. Also disclosed are intermediates, methods for making the inhibitors, pharmaceutical compositions and methods for treating hypertension using the compounds.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: February 25, 1992
    Assignee: Schering Corporation
    Inventors: Deen Tulshian, Ronald J. Doll
  • Patent number: 5068250
    Abstract: Compounds such as 1-(4-bromoacetamidobenzyl)-5-methoxy-2-methylindole-3-acetic acid, N-(4-bromoacetamidophenyl) anthranilic acid and N-(3-bromoacetamidophenyl) anthranilic acid function as irreversible ligands for nonsteroidal antiinflammatory drug (NSAID) and prostaglandin binding sites. It is therefore expected that these compounds, and analogs thereof, will have utility as anti-inflammatory drugs, as affinity labeling agents and as ligands for use in affinity chromatography.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: November 26, 1991
    Assignee: Trustees of University of Pennsylvania
    Inventors: Trevor M. Penning, Leslie J. Askonas
  • Patent number: 4994599
    Abstract: A process for producing a 1,4-dihydro-4-oxo-quinoline-3-carboxylic acid by reacting an acctophenone with a dialkoxycarbonate to obtain the corresponding .beta.-ketoester, treating the .beta.-ketoester with a trialkylorthoformate in the presence of an acid anhydride followed by treatment with a substituted or unsubstituted amine to obtain the corresponding enaminoketoester, and then reacting the enaminoketoester with a strong base to obtain the corresponding quinoline-3-carboxylic acid ester. The acid ester may then be hydrolyzed, if desired, to obtain the quinoline-3-carboxylic acid. Also disclosed herein are compounds useful as intermediates useful in the production of quinoline-3-carboxylic acid.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: February 19, 1991
    Assignee: Abbott Laboratories
    Inventor: Daniel T. Chu