Phenolic Hydroxy Or Metallate Patents (Class 562/475)
  • Patent number: 7238835
    Abstract: The invention relates to a process for the preparation of a compound of the general formula (I) in which a) a compound (II) is reacted in the presence of a base B1 with a compound (III) and b) the compound (IV) formed as intermediate in step a) is reacted in the presence of a base B2 with a compound (V) to give the compound of the general formula (I)
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: July 3, 2007
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Wolfgang Fiedler, Bernd Neises, Jochen Hachtel
  • Patent number: 7119068
    Abstract: Provided are methods of screening compounds for any aspirin-related activity other than TAFI inhibition, and also for non-inhibition of TAFI. Compounds identified by the screening methods can be used to treat, prevent or manage in a patient pain, fever, colon cancer, pancreatic cancer or an inflammatory, platelet aggregation, fibrinolytic or hemorrhagic disease or disorder. Also provided is a method of evaluating test compounds for TAFI inhibitory activity wherein the TAFI inhibitory activity of these test compounds is compared to the TAFI inhibitory activity of aspirin or its derivatives or metabolites. Further provided is a method of treating, preventing or managing in a patient, a hemorrhagic or thrombotic disease or disorder with high dose aspirin or aspirin derivatives or metabolites.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: October 10, 2006
    Assignees: American Diagnostica, Inc., Quebepharma Recherche, Inc.
    Inventors: Robert S. Greenfield, Seong Soo A. An, Latchezar Trifonov, Jean Vaugeois, Clarke Slemon
  • Patent number: 7005553
    Abstract: A method for the regioselective ortho-directed nitration of phenolic compounds useful for the preparation of ortho-nitro-phenols according to formula (I) is described.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: February 28, 2006
    Assignee: Portela, C.A., S.A.
    Inventor: David Alexander Learmonth
  • Patent number: 6897000
    Abstract: A method for producing a charge controlling agent comprisinig a reaction product of an aromatic hydroxycarboxylic acid and a calcium compound bonded by at least one bondinig system selected from the group consisting of coordinate bonding, covalent bonding and ionic bonding, characterized in that the aromatic hydroxycarboxylic acid and the calcium compound are reacted by dropwise adding a solution of the aromatic hydroxycarboxylic acid to a solution of the calcium compound as a metal-imparting agent, a charge controlling agent produced by said method, which has a shape coefficient (SF-1) average value of at most 250 and a shape coefficient (SF-2) average value of at most 200, and an electrostatic image developing toner containing said charge controlling agent having a presence ratio on a toner surface of at least 2.0 mg/1 g of toner.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: May 24, 2005
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Shinji Otani, Noriyuki Suzuki, Hideyuki Otsuka, Mitsutoshi Anzai
  • Patent number: 6838574
    Abstract: A medicament comprising as an active ingredient a compound or a physiologically acceptable salt thereof represented by general formula (I): wherein R1 represents a dicarba-closo-dodecaboran-yl which may be substituted with a lower alkyl group, a lower alkenyl group, carboxyl group or the like; R2 represents carboxyl group, a lower alkoxycarbonyl group, or hydroxyl group; and X represents a single bond or a linking group such as —CO—Y1— wherein Y1 represents oxygen or —N(R3)— wherein R3 represents hydrogen or a lower alkyl.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: January 4, 2005
    Assignee: Institute of Medicinal Molecular Design, Inc.
    Inventor: Yasuyuki Endo
  • Publication number: 20040229326
    Abstract: Methods are provided for the production and recovery of multifunctional aromatic compounds from a fermentation medium. Preferred multifunctional aromatic compounds include para-hydroxycinnamic acid (pHCA), cinnamic acid (CA), and para-hydroxystyrene (pHS). The multifunctional aromatic compounds may be produced in a biphasic growth medium comprising a fermentation medium having a specified volume of an extractant. The multifunctional aromatic compounds are extracted into the extractant and recovered by standard means.
    Type: Application
    Filed: April 14, 2004
    Publication date: November 18, 2004
    Inventors: Arie Ben-Bassat, David J. Lowe
  • Patent number: 6759552
    Abstract: The present invention provides a novel bioactive compound 12-(12′-CARBOXY-5′-METHOXYPHENYL)-2,12-DIHYDROXY-DODECA-4-ONE “Sporotricolone”, mainly as acetylcholinesterase (AchE) inhibitor, along with a process for the isolation of said compound from fungus Sporotrichum species.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: July 6, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Thimmappa Shivanandappa, Avinash Prahalad Sattur, Shereen Dummy, Soundar Divakar, Nayakana Katte Ganesh Karanth
  • Publication number: 20040127743
    Abstract: A process is disclosed for the production of alkyl salicylic acids wherein the process comprises reacting salicylic acid with an olefin having at least four carbon atoms at elevated temperature in the presence of a perfluoroalkylsulfonic acid, an alkylsulfonic acid, or an acidic clay as a catalyst.
    Type: Application
    Filed: October 21, 2003
    Publication date: July 1, 2004
    Inventor: Steven J. Hobbs
  • Publication number: 20040092754
    Abstract: The invention relates to a method for producing 2- and 2,5-substituted derivatives of 4-(trifluoromethyl)-phenol and 4-(2-trifluoromethyl)-phenyl)-2-tetrahydropyranyl) ether and to novel derivatives. Said method is characterised in that a compound of formula (2) 4-(trifluoromethylphenyl)-2-(tetrahydropyranyl) ether is reacted with an electrophile E-X or a combination of electrophiles E-X and E-Y in the presence of a base, X and Y having the meanings given in the description.
    Type: Application
    Filed: June 30, 2003
    Publication date: May 13, 2004
    Inventors: Bernd Schafer, Herve Geneste
  • Publication number: 20040049072
    Abstract: The present invention provides a novel class of RXR modulator compounds that exhibit an improved pharmacologic profile relative to the profile of previously studied RXR modulators, including those that share common structural features with the presently claimed modulators. The present invention also provides synthetic methods for preparing these compounds as well as pharmaceutical compositions incorporating these novel compounds and methods for the therapeutic use of such compounds and pharmaceutical compositions.
    Type: Application
    Filed: May 9, 2003
    Publication date: March 11, 2004
    Inventors: Robert J. Ardecky, Marcus F. Boehm, Amy L. Faulkner, Lawrence G. Hamann, Todd K. Jones, Christopher M. Mapes, Pierre-Yves Michellys, John S. Tyhonas
  • Patent number: 6673962
    Abstract: Granular product of parahydroxybenzoic acid or its ester which exhibits well suppressed dusting and caking tendency and a process for preparing the product are provided. The granular product of parahydroxybenzoic acid or its ester according to the instant invention has an average particle size of equal to or more than 150 &mgr;m and a hardness of 10-3000 g. The granular product of the invention can be prepared by dry compressing powdery parahydroxybenzoic acid or its ester to give compressed material, pulverizing and classifying the material.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: January 6, 2004
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Masaya Kitayama, Nobutaka Izumichi, Masaharu Kittaka
  • Publication number: 20030160205
    Abstract: Granular product of parahydroxybenzoic acid or its ester which exhibits well suppressed dusting and caking tendency and a process for preparing the product are provided. The granular product of parahydroxybenzoic acid or its ester according to the instant invention has an average particle size of equal to or more than 150 &mgr;m and a hardness of 10-3000 g. The granular product of the invention can be prepared by dry compressing powdery parahydroxybenzoic acid or its ester to give compressed material, pulverizing and classifying the material.
    Type: Application
    Filed: December 18, 2002
    Publication date: August 28, 2003
    Inventors: Ryuzo Ueno, Masaya Kitayama, Nobutaka Izumichi, Masaharu Kittaka
  • Patent number: 6492424
    Abstract: Novel glucocorticoid and thyroid receptor ligands as provided which have the general formula (I): in which R1 is an aliphatic hydrocarbon, an aromatic hydrocarbon, carboxylic acid or ester thereof, alkenyl carboxylic acid or ester thereof, hydroxy, halogen, or cyano, or a pharmaceutically acceptable salt thereof. R2 and R3 are the same or different, and are hydrogen, halogen, alkyl of 1 to 4 carbons, or cycloalkyl of 3 to 5 carbons, at least one of R2 and R3 being other than hydrogen. X is carbonyl or methylene. R4 is an aliphatic, aromatic or heteroaromatic. Y is hydroxyl, methoxy, amino, or alkyl amino. n is an integer from 0 to 4. A method for treating diseases associated with metabolism dysfunction or which are dependent on the expression of a glucocorticoid or thyroid receptor gene such as diabetes, hypercholesterolemia, or obesity using these compounds is also disclosed.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: December 10, 2002
    Assignee: Karo Bio AB
    Inventors: Theresa Apelqvist, Patrick Goede, Erik Holmgren
  • Publication number: 20020161236
    Abstract: HIV protease inhibitors inhibit or block the biological activity of the HIV protease enzyme, causing the replication of the HIV virus to terminate. These compounds can be prepared by the novel methods of the present invention using the novel inventive compounds and intermediates.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 31, 2002
    Inventors: Michael E. Deason, Kathleen R. Whitten
  • Patent number: 6359172
    Abstract: The invention relates to a method of preparing 2- and 4-hydroxymandelic acid by condensing glyoxylic acid with phenol. The glyoxylic acid is reacted with phenol, after which the formed reaction mixture or the phenol, the 2- and 4-hydroxymandelic acid respectively are elution-separated in a column comprising an anion exchange resin, wherein first the excess phenol is separated, followed by the separation of the 4-hydroxymandelic acid and finally the 2-hydroxymandelic acid, both in the form of acid and salt, depending on the eluent used.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: March 19, 2002
    Assignee: Gerard Kessels Sociedad Anonima, S.A.
    Inventor: Raoul Kessels
  • Publication number: 20010034370
    Abstract: A novel carnosic acid derivative for promoting the synthesis of nerve growth factor (NGF), a composition comprising the carnosic acid derivative as an effective ingredient, as well as, a method of promoting the synthesis of NGF comprising administering an effective amount of the carnosic acid derivative as an effective ingredient to a subject requiring such promotion. The carnosic acid derivative, composition and method according to the present invention can safely and efficiently promote the production of NGF in the living body, without being accompanied by a side effect such as a loss of a quantitative balance of hormones in the living body.
    Type: Application
    Filed: February 28, 2001
    Publication date: October 25, 2001
    Inventors: Kunio Kosaka, Toshitsugu Miyazaki, Toshio Yokoi
  • Patent number: 6288260
    Abstract: A two step process is described for making 2-alkyl-3-hydroxybenzoic acids or derivatives of benzoic acids by first reacting an allenyl ester or equivalent with furan followed by the ring-opening reaction of the derived bicyclo intermediate with base. The benzoic acids thus prepared are useful intermediates for the preparation of agricultural and pharmaceutical materials.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: September 11, 2001
    Assignee: Rohm and Haas Company
    Inventor: Martha Jean Kelly
  • Patent number: 6274776
    Abstract: Preparation of 2,5-dichlorophenol by selectively oxidizing 1,4-dichlorobenzene using a peroxo-, hydroperoxo-, superoxo- or alkylperoxo-metal species in the presence of an &agr;-hydroxy-, dibasic-, tribasic- or sulfonic acid.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: August 14, 2001
    Assignee: Syngenta Participations
    Inventors: Clive A. Henrick, Randall A. Scheuerman
  • Patent number: 6242609
    Abstract: A method for manufacturing a color coupler used in a silver halide photographic light-sensitive material using an ammonium trihalide. Said method for manufacturing the color coupler comprising the following step: a step for halogenating a coupling position of a four equivalent coupler using a halogenating agent, wherein said halogenating agent is said ammonium trihalide.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: June 5, 2001
    Assignee: Konica Corporation
    Inventor: Fumio Ishii
  • Patent number: 6215022
    Abstract: The invention relates to a novel method for preparing 3-hydroxy-2-methylbenzoic acid by reacting disodium 3-amino-1,5-naphthalinedisulfonic acid with aqueous potassium hydroxide solution at a pressure of at least 100 bar.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: April 10, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventor: Uwe Stelzer
  • Patent number: 6187950
    Abstract: Compounds of the formula Y3(R4)—X—Y1(R1R2)—Z—Y2(R2)—A—B where the symbols have the meaning defined in the specification, have retinoid, retinoid antagonist or retinoid inverse agonist type biological activity.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: February 13, 2001
    Inventors: Tae K. Song, Min Teng, Roshantha A. Chandraratna
  • Patent number: 6184421
    Abstract: The present invention concerns a process for the preparation of a 4-hydroxybenzaldehyde and its derivatives. More particularly, the invention concerns the preparation of 3-methoxy-4-hydroxybenzaldehyde and 3-ethoxy-4-hydroxybenzaldehyde, respectively known as vanillin and ethylvanillin.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: February 6, 2001
    Assignee: Rhodia Chimie
    Inventor: Pascal Metivier
  • Patent number: 6150412
    Abstract: The invention relates to compounds of formula (I) ##STR1## wherein R.sub.1 is an electronegative substituent, preferably nitro, cyano, formyl or carboxy, R.sub.2 is --A--R.sub.4, wherein A is a branched or straight chain C.sub.1-9 alkylene and R.sub.4 is carboxy or 5-tetrazolyl; R.sub.3 is an electronegative substituent, preferably nitro, cyano, halogen, formyl, carboxy, C.sub.1-5 alkyl carbonyl, aryl carbonyl or SO.sub.2 R.sub.6, wherein R.sub.6 is a branched or straight chain C.sub.1-5 alkyl, aryl alkyl, aryl or NR.sub.7 R.sub.8, wherein R.sub.7 and R.sub.8 are independently hydrogen, a branched or straight chain C.sub.1-5 alkyl or together form a C.sub.3-6 ring; or a pharmaceutically acceptable ester or salt thereof. The compounds are peripheral, long acting COMT (catechol-O-methyl transferase) inhibitors and are useful, e.g., in the treatment of Parkinson's disease and hypertension.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: November 21, 2000
    Assignee: Orion-yhtyma Oy
    Inventors: Jarmo Pystynen, Anne Luiro, Timo Lotta, Martti Ovaska, Jukka Vidgren
  • Patent number: 6133259
    Abstract: Amyloid binding compounds which are non-azo derivatives of Chrysamine G, pharmaceutical compositions containing, and methods using such compounds to identify Alzheimer's brain in vivo and to diagnose other pathological conditions characterized by amyloidosis, such as Down's Syndrome are described. Pharmaceutical compositions containing non-azo derivatives of Chrysamine G and methods using such compositions to prevent cell degeneration and amyloid-induced toxicity in amyloidosis associated conditions are also described. Methods using non-azo Chrysamine G derivatives to stain or detect amyloid deposits in biopsy or post-mortem tissue are also described. Methods using non-azo Chrysamine G derivatives to quantify amyloid deposits in homogenates of biopsy and post-mortem tissue are also described.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: October 17, 2000
    Assignee: University of Pittsburgh
    Inventors: William E. Klunk, Jay W. Pettegrew, Chester A. Mathis, Jr.
  • Patent number: 6046220
    Abstract: The invention relates to novel propynyl or dienyl biaromatic compounds which have the general formula (I) ##STR1## as well as to the use of these compounds in pharmaceutical compositions intended for use in human or veterinary medicine (dermatological, rheumatic, respiratory, cardiovascular and ophthalmological complaints in particular), or alternatively in cosmetic compositions.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: April 4, 2000
    Assignee: Centre International de Recherches Dermatologiques Galderma
    Inventor: Jean-Michel Bernardon
  • Patent number: 5985927
    Abstract: Medicinal products for the selective control of tumor tissue and a method for control of such tumor tissue by administration of such product to a host. The products comprise: (a) two different compounds having a pH below 7 when the compounds are present in a protonated form, such compounds having the formula set forth below and (b) a pharmaceutically acceptable inert medicinal product carrier. The compounds have the following ##STR1## wherein R.sub.1 is hydrogen or a moiety which completes an ester group or an ether group, R.sub.2 is independently selected from the group consisting of an amino group, hydroxyl, an ester group, an ether group and a halogen, and n is an integer of 1 to 4.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: November 16, 1999
    Inventor: Werner Kreutz
  • Patent number: 5965741
    Abstract: The invention provides compounds of formula I: ##STR1## wherein A, B, D, X, R.sup.1, and R.sup.3 have any of the values defined in the specification, as well as N-oxides thereof, S-oxides thereof, pharmaceutically acceptable salts thereof, and in vivo hydrolizable esters and amides thereof, that are useful to relieve pain. The invention also provides pharmaceutical compositions as well as synthetic and therapeutic methods relating to such compounds.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: October 12, 1999
    Assignee: Zeneca Limited
    Inventors: Gloria Anne Breault, Howard Tucker, John Oldfield, Peter Warner
  • Patent number: 5925487
    Abstract: A toner resin composition comprising a toner resin and the metal salt or complex of a carbocyclic hydroxy caboxylic acid containing at least one methylene group optionally substituted by hydroxy or amino such as 4-(N-methyl-N-2-hydroxyethyl)aminomethyl-3-hydroxy-2-naphthoic acid. Iron and zinc salts are preferred.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: July 20, 1999
    Assignee: Zeneca Limited
    Inventors: David Melville Fawkes, Peter Gregory, James Stanley Campbell
  • Patent number: 5922905
    Abstract: Substituted benzoic acid compounds are disclosed, having the formula: ##STR1## The compounds find use as intermediates for the production of agricultural fungicides.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: July 13, 1999
    Assignee: American Cyanamid Company
    Inventors: Juergen Curtze, Werner Simon, Gerd Morschhaeuser, Andreas Waldeck, Karl-Otto Stumm, Henry Van Tuyl Cotter, Guido Albert, Annerose Rehnig, Gunther Reichert
  • Patent number: 5808145
    Abstract: Dispersant detergent additives for lubricating oils prepared by neutralization, carboxylation, sulfurization-overalkalinization, carbonation, distillation, filtering and degassing from alkyl phenols containing 35-85% by weight of linear alkyl substituents. The process does not require, during the neutralizing phase, the presence of a third solvent, which, by forming an azeotropic mixture with water promotes the elimination of water arising from the neutralizing reaction. The additives of the invention have improved stability to hydrolysis and improved dispersion properties, improved compatibility and improved foaming properties.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: September 15, 1998
    Inventors: Jean-Louis Le Coent, Jacques Cazin, Thierry Triconnet, William W. Willis, Jr.
  • Patent number: 5792876
    Abstract: A process is described for producing acetals comprising reacting an aldehyde or a ketone with an alcohol in the presence of a titanium compound having an acetylacetone as a ligand, or in the presence of a compound selected from the group consisting of stannous chloride dihydrate, cerium chloride hexahydrate and bismuth chloride. The process can be used in the synthesis of unstable acetals or when water exists in the reaction mixture, and therefore the process can be used for a wide variety of applications.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: August 11, 1998
    Assignee: Kuraray Co., Ltd.
    Inventors: Hideharu Iwasaki, Masahiko Kitayama, Takashi Onishi
  • Patent number: 5766610
    Abstract: Novel pharmaceutically/cosmetically-active polycyclic aromatic compounds have the structural formula (I): ##STR1## wherein Ar is a radical having one of the formulae (a)-(e): ##STR2## and are useful for the treatment of a wide variety of disease states, whether human or veterinary, for example dermatological, rheumatic, respiratory, cardiovascular and ophthalmological disorders, as well as for the treatment of mammalian skin and hair conditions/disorders.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: June 16, 1998
    Assignee: Centre International De Recherches Dermatologiques Galderma
    Inventor: Jean-Michel Bernardon
  • Patent number: 5756853
    Abstract: The subject of the present invention is a process for the preparation of a 4-hydroxybenzaldehyde carrying at least one substituent in the position ortho to the OH group.It more particularly relates to the preparation of 3-methoxy-4-hydroxybenzaldehyde and of 3-ethoxy-4-hydroxybenzaldehyde.The process for the preparation of a substituted 4-hydroxybenzaldlehyde, substituted at least in the 3 position by an alkoxy group, is characterized in that it comprises subjecting a substituted phenol compound, substituted at least in the 2 position by an alkoxy group and in which the 4 and 6 positions are free, to a first stage of carboxylation in the 6 position, then to a stage of hydroxymethylation in the 4 position, followed by a stage of oxidation of the hydroxymethyl group to a formyl group, and finally to a last decarboxylation stage.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: May 26, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Pascal Metivier, Isabelle Jouve, Christian Maliverney
  • Patent number: 5734078
    Abstract: A process for the production of an alkyl salicylic acid in which the alkyl substituent has at least 6 carbon atoms is disclosed, comprising reacting salicylic acid with an olefin having at least 6 carbon atoms at elevated temperature in the presence of sulphuric acid as a catalyst. Lubricating oil additives comprising a metal salt of such alkylated salicylic acids and a process for making them are also disclosed.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: March 31, 1998
    Assignee: BP Chemicals (Additives) Limited
    Inventors: Andrew D. Feilden, David J. Moreton, Charles B. Thomas
  • Patent number: 5703274
    Abstract: A process for the preparation of 5-hydroxyisophthalic acid (5-HIPA) that comprises hydrolyzing a starting material chosen from among 5-bromoisophthalic acid (5-BIPA), mixtures of 5-BIPA and dibromoisophthalic acid isomers, and salts of thereof in an aqueous alkaline solution, in the presence of a catalytically effective amount of a copper compound catalyst and in a temperature range of between 100.degree. and 270.degree. C.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: December 30, 1997
    Assignee: Bromine Compounds Ltd.
    Inventors: Mark Gelmont, Joseph Bercovici, Jakob Oren
  • Patent number: 5688999
    Abstract: A method is disclosed for the production of oxidized humic acids. The process of the invention comprises reacting humic acid bearing ores with oxygen under alkaline conditions at a temperature between 100.degree. C. and 200.degree. C. for at least 1/2 hour, but usually for 1-2 hours, to produce oxidized humic acids which are soluble at pH as low as 2.9 and which are formed in yields of at least 70%. The oxidized humic acids produced according to the process of the invention are also superior viscosity reducers.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: November 18, 1997
    Assignee: Lignotech USA, Inc.
    Inventors: Stuart E. Lebo, Jr., Kevin R. Wirtz, Stephen L. Dickman
  • Patent number: 5654331
    Abstract: Diaromatic compounds, characterised in that they correspond to the following general formula: ##STR1## in which: R.sub.1 is --CH.sub.3, --CH.sub.2 OH, --COR.sub.8 or --CH.sub.2 OCOR.sub.9, R.sub.8 is H, OH, --OR.sub.10, --N(rr') or alkyl, R.sub.10 is alkyl, alkenyl, aryl or aralkyl, r and r' being H, alkyl, aryl, aralkyl, etc., r and r' together form a heterocycle, R.sub.9 is alkyl, alkenyl or a sugar residue, R.sub.2 and R.sub.3 are --OR.sub.11 or --OCOR.sub.11, R.sub.11 is H, alkyl, fluoroalkyl, aryl or aralkyl, R.sub.3 in addition being H, R.sub.4 is H, OH, alkyl, alkoxy, F, Cl or --CF.sub.3, R.sub.5 and R.sub.7 are H, OH, alkoxy, .alpha.-substituted alkyl or .alpha.,.alpha.'-disubstituted alkyl, etc., R.sub.6 is H, OH, alkyl, alkoxy, cycloalkyl, etc., R.sub.5 and R.sub.7 cannot simultaneously be OH or alkoxy and R.sub.4, R.sub.5, R.sub.6 and R.sub.7 cannot simultaneously be H, R.sub.5 and R.sub.6 or R.sub.6 and R.sub.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: August 5, 1997
    Assignee: Centre International De Recherches Dermatologiques Galderma (Cird Galderma)
    Inventor: Jean-Michel Bernardon
  • Patent number: 5563129
    Abstract: There are disclosed novel hydroquinone derivatives of the formula: ##STR1## The derivatives of the formula (I) have various pharmacological activities such as antioxidation in living bodies and are useful as medicaments.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: October 8, 1996
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hirotomo Masuya, Masayoshi Yamaoka
  • Patent number: 5543564
    Abstract: This invention embodies a process for releasing acidic organic compounds in high yield and good purity from aqueous solutions of their salts which comprises converting the salts by carbon dioxide to their corresponding free acidic organic compounds and metal hydrogen carbonates, removing the acidic organic compounds from the mixture by extraction with an essentially water-insoluble organic solvent, and re-extracting the organic phase with carbon dioxide containing water. Using this process, the acidic organic compounds are completely released from their corresponding salts, i.e., the organic solution is free of salt. The acidic organic compounds released by the claimed process are organic compounds which contain acidic protons which can be replaced by metals. Some examples are carboxylic acids, sulfonic acids, phosphonic acids, phenols, naphthols, and aliphatic alcohols.
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: August 6, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: J urgen Kulpe, Heinz Strutz, Hans-Martin R uffer, Siegbert Rittner
  • Patent number: 5476860
    Abstract: Diaromatic compounds, characterized in that they correspond to the following general formula: ##STR1## in which: R.sub.1 is --CH.sub.3, --CH.sub.2 OH, --COR.sub.8 or --CH.sub.2 OCOR.sub.9, R.sub.8 is H, OH, --OR.sub.10, --N(rr') or alkyl, R.sub.10 is alkyl, alkenyl, aryl or aralkyl, r and r' being H, alkyl, aryl, aralkyl, etc., r and r' together form a heterocycle, R.sub.9 is alkyl, alkenyl or a sugar residue, R.sub.2 and R.sub.3 are --OR.sub.11 or --OCOR.sub.11, R.sub.11 is H, alkyl, fluoroalkyl, aryl or aralkyl, R.sub.3 in addition being H, R.sub.4 is H, OH, alkyl, alkoxy, F, Cl or --CF.sub.3, R.sub.5 and R.sub.7 are H, OH, alkoxy, .alpha.-substituted alkyl or .alpha.,.alpha.'-disubstituted alkyl, etc., R.sub.6 is H, OH, alkyl, alkoxy, cycloalkyl, etc., R.sub.5 and R.sub.7 cannot simultaneously be OH or alkoxy and R.sub.4, R.sub.5, R.sub.6 and R.sub.7 cannot simultaneously be H, R.sub.5 and R.sub.6 or R.sub.6 and R.sub.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: December 19, 1995
    Assignee: Centre International de Recherches Dermatologiques (CIRD Galderma)
    Inventor: Jean-Michel Bernardon
  • Patent number: 5312975
    Abstract: A process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid comprising the reaction of an organometallic derivative with a suitable substituted benzene in the presence of a transition-metal based catalyst is described.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: May 17, 1994
    Assignee: Zambon Group S.p.A.
    Inventors: Claudio Giordano, Laura Coppi, Francesco Minisci
  • Patent number: 5302524
    Abstract: A method of stimulating seedling growth which comprises applying a coal-derived oxidation product to the medium in which the seedling is growing. The product is in the form of a solution or a slurry having a pH in the range of 2 to 12 and has the following elemental and functional group analysis (on an air-dried basis):______________________________________ ELEMENTAL ANALYSIS Element Range (%) ______________________________________ Carbon 30-70 Hydrogen 2-6 Nitrogen 0.1-5 Sulphur 0.1-10 Oxygen 15-45 ______________________________________ FUNCTIONAL GROUP ANALYSIS Functional Group Range (meq/g) ______________________________________ Total acidity 3-13 Carboxylic groups 0.5-12 Phenolic groups 0.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: April 12, 1994
    Assignee: National Energy Council
    Inventors: Hendrik A. Van De Venter, Johannes Dekker, Izak J. Cronje
  • Patent number: 5296638
    Abstract: An improved process for preparing carboxylated 2-allyl-phenols of general formula (I): ##STR1## is disclosed, which consists of a first step of simultaneous esterification and etherification of a carboxylated phenol, subsequent rearrangement of the resulting product to yield allyl-carboxylated allyl-phenol and end saponification of the latter into carboxylated 2-allyl-phenol.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: March 22, 1994
    Assignee: Eniricerche S.p.A.
    Inventors: Alessandro Lezzi, Arnaldo Roggero, Ugo Pedretti, Cesarina Bonfanti
  • Patent number: 5248814
    Abstract: Process for preparing regenerated humic acids from coal by means of the continuous oxidation on fluidized bed, characterized in that a coal of lignite, sub-bituminous or bituminous type is submitted to a preliminary oxidation under mild conditions in order to reduce the hydrogen content of said coal by an amount of 5 to 25% of hydrogen initially present in the starting coal, and that the resulting coal is subsequently submitted to an oxidation in order to produce the desired humic acids.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: September 28, 1993
    Assignee: Eniricerche S.p.A.
    Inventors: Vincenzo Calemma, Vincenzo Piccolo, Riccardo Rausa
  • Patent number: 5239114
    Abstract: A process for the preparation of 4-(2,4-difluorophenyl)-phenyl 4-nitro-benzoate, an intermediate for the preparation of 5-(2,4-difluorophenyl)-salicylic acid, which is a drug known with the international non-proprietary name Diflunisal, is described.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: August 24, 1993
    Assignee: Zambon Group S.p.A.
    Inventors: Claudio Giordano, Laura Coppi, Maurizio Paiocchi
  • Patent number: 5124479
    Abstract: 1,2-Dihydroxycyclohexa-3,5-diene-1,4-dicarboxylic acid and its salts, which are novel intermediates yielding hydroxyterephthalic acid upon dehydration, can be prepared by culturing terephthalic acid and a carbon/energy source with a microorganism capable of oxidizing terephthalic acid but incapable of degradation of 1,2-dihydroxycyclohexa-3,5-diene-1,4-dicarboxylic acid thereby formed.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: June 23, 1992
    Assignee: Celgene Corporation
    Inventors: Mark E. Ruppen, Scott Hagedorn
  • Patent number: 5086067
    Abstract: This invention relates to a compound of the formula: ##STR1## or a pharmaceutically acceptable salt thereof wherein X is oxygen, sulfur, --CH.dbd.CH-- or --CH.dbd.N--; wherein R.sub.1 is alkyl, alkenyl or alkynyl of about 1 to 20 carbon atoms; wherein R is --CO.sub.2 R.sup.2, tetrazole, methylsulfonamide or benzenesulfonamide, wherein R.sup.2 is hydrogen, alkyl of 1 to 6 carbon atoms or a pharmaceutically acceptable cation and R.sup.3 is hydroxyl or halogen, having utility as LTB.sub.4 synthesis inhibitors.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: February 4, 1992
    Assignee: G. D. Searle & Co.
    Inventors: Stevan W. Djuric, Richard A. Haack, Julie M. Miyashiro
  • Patent number: 5081263
    Abstract: The invention relates to the dioxane adducts of armoatic meta-or para-hydroxycarboxylic acids, which consist, per mole, of 1 mole of 1,4-dioxane and about 2 moles of hydroxycarboxylic acid. The invention further relates to a process for the preparation of these adducts, which comprises dissolving the hydroxycarboxylic acids in dioxane or a mixture of the latter with water or with an organic solvent and then allowing the adducts to crystallize.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: January 14, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: von Helmold Plessen, Siegbert Rittner
  • Patent number: 5004831
    Abstract: A method of recovering humic acids from a material such as oxidised coal is provided. This method includes the steps of mixing the material with aqueous alkali, particularly aqueous sodium hydroxide, heating the mixture to a temperature above 100.degree. C. and below 180.degree. C. under sufficient pressure to prevent evaporation of the water, and maintaining the elevated temperature for a time, generally less than 2 hours, sufficient to extract a substantial amount of the available humic acids from the material.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: April 2, 1991
    Assignee: National Energy Council
    Inventors: Johannes Dekker, Izak J. Cronje
  • Patent number: 4990660
    Abstract: Aromatic hydroxycarboxylic acids of the formula(HO--).sub.n A--COOHwhere n is 1 or 2 and A is a radical from the benzene, naphthalene, biphenyl, diphenyl ether, diphenyl sulfide or diphenyl sulfone series, are prepared by a process in which an acylated aromatic compound of the formula(R.sup.1 --CO--O--).sub.n A--CO--R.sup.2where R.sup.1 and R.sup.2 independently of one another are each unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl and n and A each have the abovementioned meanings, is oxidized with oxygen in the presence of a catalyst and of a solvent at from 20.degree. to 250.degree. C. to give a carboxylic acid of the formula(R.sup.1 --CO--O--).sub.n A--COOHwhere R.sup.1, n and A have the abovementioned meanings, and the acyl group or groups is or are then eliminated.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: February 5, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Neumann, Ulrich Eichenauer