Phenolic Hydroxy Or Metallate Patents (Class 562/475)
-
Patent number: 7238835Abstract: 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: GrantFiled: December 21, 2004Date of Patent: July 3, 2007Assignee: Sanofi-Aventis Deutschland GmbHInventors: Wolfgang Fiedler, Bernd Neises, Jochen Hachtel
-
Patent number: 7119068Abstract: 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: GrantFiled: August 29, 2003Date of Patent: October 10, 2006Assignees: American Diagnostica, Inc., Quebepharma Recherche, Inc.Inventors: Robert S. Greenfield, Seong Soo A. An, Latchezar Trifonov, Jean Vaugeois, Clarke Slemon
-
Patent number: 7005553Abstract: 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: GrantFiled: July 22, 2002Date of Patent: February 28, 2006Assignee: Portela, C.A., S.A.Inventor: David Alexander Learmonth
-
Charge controlling agent, method for producing the same and toner for developing electrostatic image
Patent number: 6897000Abstract: 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: GrantFiled: November 6, 2001Date of Patent: May 24, 2005Assignee: Hodogaya Chemical Co., Ltd.Inventors: Shinji Otani, Noriyuki Suzuki, Hideyuki Otsuka, Mitsutoshi Anzai -
Patent number: 6838574Abstract: 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: GrantFiled: January 21, 2000Date of Patent: January 4, 2005Assignee: Institute of Medicinal Molecular Design, Inc.Inventor: Yasuyuki Endo
-
Publication number: 20040229326Abstract: 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: ApplicationFiled: April 14, 2004Publication date: November 18, 2004Inventors: Arie Ben-Bassat, David J. Lowe
-
Patent number: 6759552Abstract: 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: GrantFiled: March 28, 2002Date of Patent: July 6, 2004Assignee: Council of Scientific and Industrial ResearchInventors: Thimmappa Shivanandappa, Avinash Prahalad Sattur, Shereen Dummy, Soundar Divakar, Nayakana Katte Ganesh Karanth
-
Publication number: 20040127743Abstract: 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: ApplicationFiled: October 21, 2003Publication date: July 1, 2004Inventor: Steven J. Hobbs
-
Publication number: 20040092754Abstract: 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: ApplicationFiled: June 30, 2003Publication date: May 13, 2004Inventors: Bernd Schafer, Herve Geneste
-
Publication number: 20040049072Abstract: 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: ApplicationFiled: May 9, 2003Publication date: March 11, 2004Inventors: 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: 6673962Abstract: 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: GrantFiled: December 18, 2002Date of Patent: January 6, 2004Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Ryuzo Ueno, Masaya Kitayama, Nobutaka Izumichi, Masaharu Kittaka
-
Publication number: 20030160205Abstract: 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: ApplicationFiled: December 18, 2002Publication date: August 28, 2003Inventors: Ryuzo Ueno, Masaya Kitayama, Nobutaka Izumichi, Masaharu Kittaka
-
Patent number: 6492424Abstract: 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: GrantFiled: April 9, 2001Date of Patent: December 10, 2002Assignee: Karo Bio ABInventors: Theresa Apelqvist, Patrick Goede, Erik Holmgren
-
Publication number: 20020161236Abstract: 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: ApplicationFiled: April 2, 2002Publication date: October 31, 2002Inventors: Michael E. Deason, Kathleen R. Whitten
-
Patent number: 6359172Abstract: 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: GrantFiled: September 15, 1999Date of Patent: March 19, 2002Assignee: Gerard Kessels Sociedad Anonima, S.A.Inventor: Raoul Kessels
-
Publication number: 20010034370Abstract: 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: ApplicationFiled: February 28, 2001Publication date: October 25, 2001Inventors: Kunio Kosaka, Toshitsugu Miyazaki, Toshio Yokoi
-
Patent number: 6288260Abstract: 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: GrantFiled: December 7, 1999Date of Patent: September 11, 2001Assignee: Rohm and Haas CompanyInventor: Martha Jean Kelly
-
Patent number: 6274776Abstract: 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: GrantFiled: December 12, 1995Date of Patent: August 14, 2001Assignee: Syngenta ParticipationsInventors: Clive A. Henrick, Randall A. Scheuerman
-
Patent number: 6242609Abstract: 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: GrantFiled: April 7, 1999Date of Patent: June 5, 2001Assignee: Konica CorporationInventor: Fumio Ishii
-
Patent number: 6215022Abstract: 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: GrantFiled: December 30, 1999Date of Patent: April 10, 2001Assignee: Bayer AktiengesellschaftInventor: Uwe Stelzer
-
Patent number: 6187950Abstract: 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: GrantFiled: March 12, 1999Date of Patent: February 13, 2001Inventors: Tae K. Song, Min Teng, Roshantha A. Chandraratna
-
Patent number: 6184421Abstract: 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: GrantFiled: May 13, 1999Date of Patent: February 6, 2001Assignee: Rhodia ChimieInventor: Pascal Metivier
-
Patent number: 6150412Abstract: 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: GrantFiled: November 21, 1997Date of Patent: November 21, 2000Assignee: Orion-yhtyma OyInventors: Jarmo Pystynen, Anne Luiro, Timo Lotta, Martti Ovaska, Jukka Vidgren
-
Patent number: 6133259Abstract: 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: GrantFiled: November 9, 1998Date of Patent: October 17, 2000Assignee: University of PittsburghInventors: William E. Klunk, Jay W. Pettegrew, Chester A. Mathis, Jr.
-
Patent number: 6046220Abstract: 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: GrantFiled: January 26, 1998Date of Patent: April 4, 2000Assignee: Centre International de Recherches Dermatologiques GaldermaInventor: Jean-Michel Bernardon
-
Patent number: 5985927Abstract: 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: GrantFiled: February 17, 1998Date of Patent: November 16, 1999Inventor: Werner Kreutz
-
Patent number: 5965741Abstract: 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: GrantFiled: February 21, 1997Date of Patent: October 12, 1999Assignee: Zeneca LimitedInventors: Gloria Anne Breault, Howard Tucker, John Oldfield, Peter Warner
-
Patent number: 5925487Abstract: 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: GrantFiled: June 27, 1997Date of Patent: July 20, 1999Assignee: Zeneca LimitedInventors: David Melville Fawkes, Peter Gregory, James Stanley Campbell
-
Patent number: 5922905Abstract: Substituted benzoic acid compounds are disclosed, having the formula: ##STR1## The compounds find use as intermediates for the production of agricultural fungicides.Type: GrantFiled: October 17, 1997Date of Patent: July 13, 1999Assignee: American Cyanamid CompanyInventors: Juergen Curtze, Werner Simon, Gerd Morschhaeuser, Andreas Waldeck, Karl-Otto Stumm, Henry Van Tuyl Cotter, Guido Albert, Annerose Rehnig, Gunther Reichert
-
Patent number: 5808145Abstract: 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: GrantFiled: November 25, 1996Date of Patent: September 15, 1998Inventors: Jean-Louis Le Coent, Jacques Cazin, Thierry Triconnet, William W. Willis, Jr.
-
Patent number: 5792876Abstract: 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: GrantFiled: November 6, 1996Date of Patent: August 11, 1998Assignee: Kuraray Co., Ltd.Inventors: Hideharu Iwasaki, Masahiko Kitayama, Takashi Onishi
-
Patent number: 5766610Abstract: 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: GrantFiled: April 26, 1995Date of Patent: June 16, 1998Assignee: Centre International De Recherches Dermatologiques GaldermaInventor: Jean-Michel Bernardon
-
Patent number: 5756853Abstract: 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: GrantFiled: October 16, 1996Date of Patent: May 26, 1998Assignee: Rhone-Poulenc ChimieInventors: Pascal Metivier, Isabelle Jouve, Christian Maliverney
-
Patent number: 5734078Abstract: 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: GrantFiled: October 31, 1996Date of Patent: March 31, 1998Assignee: BP Chemicals (Additives) LimitedInventors: Andrew D. Feilden, David J. Moreton, Charles B. Thomas
-
Patent number: 5703274Abstract: 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: GrantFiled: March 26, 1996Date of Patent: December 30, 1997Assignee: Bromine Compounds Ltd.Inventors: Mark Gelmont, Joseph Bercovici, Jakob Oren
-
Patent number: 5688999Abstract: 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: GrantFiled: January 26, 1996Date of Patent: November 18, 1997Assignee: Lignotech USA, Inc.Inventors: Stuart E. Lebo, Jr., Kevin R. Wirtz, Stephen L. Dickman
-
Patent number: 5654331Abstract: 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: GrantFiled: May 25, 1995Date of Patent: August 5, 1997Assignee: Centre International De Recherches Dermatologiques Galderma (Cird Galderma)Inventor: Jean-Michel Bernardon
-
Patent number: 5563129Abstract: 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: GrantFiled: April 24, 1995Date of Patent: October 8, 1996Assignee: Takeda Chemical Industries, Ltd.Inventors: Hirotomo Masuya, Masayoshi Yamaoka
-
Patent number: 5543564Abstract: 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: GrantFiled: January 11, 1995Date of Patent: August 6, 1996Assignee: Hoechst AktiengesellschaftInventors: J urgen Kulpe, Heinz Strutz, Hans-Martin R uffer, Siegbert Rittner
-
Patent number: 5476860Abstract: 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: GrantFiled: December 8, 1993Date of Patent: December 19, 1995Assignee: Centre International de Recherches Dermatologiques (CIRD Galderma)Inventor: Jean-Michel Bernardon
-
Patent number: 5312975Abstract: 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: GrantFiled: December 27, 1991Date of Patent: May 17, 1994Assignee: Zambon Group S.p.A.Inventors: Claudio Giordano, Laura Coppi, Francesco Minisci
-
Patent number: 5302524Abstract: 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: GrantFiled: May 14, 1990Date of Patent: April 12, 1994Assignee: National Energy CouncilInventors: Hendrik A. Van De Venter, Johannes Dekker, Izak J. Cronje
-
Patent number: 5296638Abstract: 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: GrantFiled: August 20, 1992Date of Patent: March 22, 1994Assignee: Eniricerche S.p.A.Inventors: Alessandro Lezzi, Arnaldo Roggero, Ugo Pedretti, Cesarina Bonfanti
-
Patent number: 5248814Abstract: 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: GrantFiled: September 11, 1992Date of Patent: September 28, 1993Assignee: Eniricerche S.p.A.Inventors: Vincenzo Calemma, Vincenzo Piccolo, Riccardo Rausa
-
Patent number: 5239114Abstract: 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: GrantFiled: April 10, 1992Date of Patent: August 24, 1993Assignee: Zambon Group S.p.A.Inventors: Claudio Giordano, Laura Coppi, Maurizio Paiocchi
-
Patent number: 5124479Abstract: 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: GrantFiled: September 17, 1990Date of Patent: June 23, 1992Assignee: Celgene CorporationInventors: Mark E. Ruppen, Scott Hagedorn
-
Patent number: 5086067Abstract: 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: GrantFiled: December 18, 1989Date of Patent: February 4, 1992Assignee: G. D. Searle & Co.Inventors: Stevan W. Djuric, Richard A. Haack, Julie M. Miyashiro
-
Patent number: 5081263Abstract: 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: GrantFiled: December 14, 1989Date of Patent: January 14, 1992Assignee: Hoechst AktiengesellschaftInventors: von Helmold Plessen, Siegbert Rittner
-
Patent number: 5004831Abstract: 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: GrantFiled: November 16, 1989Date of Patent: April 2, 1991Assignee: National Energy CouncilInventors: Johannes Dekker, Izak J. Cronje
-
Patent number: 4990660Abstract: 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: GrantFiled: December 21, 1988Date of Patent: February 5, 1991Assignee: BASF AktiengesellschaftInventors: Peter Neumann, Ulrich Eichenauer