Polyhydroxy (h Of -oh May Be Replaced By A Group Ia Or Iia Light Metal) Patents (Class 568/811)
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Patent number: 10472312Abstract: Provided is a method for producing a phenoxyethanol derivative. This method for producing a compound represented by formula (II) is characterized in that a compound represented by formula (I) (in the formula, R1 is a substituted or unsubstituted alkyl) is reduced in the presence of lithium borohydride.Type: GrantFiled: March 14, 2017Date of Patent: November 12, 2019Assignee: Shionogi & Co., Ltd.Inventors: Takayuki Toyama, Naoki Miyake
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Patent number: 9408811Abstract: Prostate cancer is the most commonly diagnosed cancer in males and one of the leading causes of cancer death. Although treatment options have increased for some patients, overall progress has been modest. Thus, there is a great need to develop new treatments. This invention relates to a method for treating cancer comprising using an anti-cancer compound of formula (I): More particularly, it relates to said anti-prostate cancer compound that can be isolated from Garcinia esculenta or chemically synthesized and its specific anticancer/antitumor activity. The invention has a specific application in treating human prostate cancer.Type: GrantFiled: July 17, 2014Date of Patent: August 9, 2016Assignee: Hong Kong Baptist UniversityInventors: Hongxi Xu, Xin Li, Hong Zhang, Yuanzhi Lao, Hongsheng Tan, Xiaoyu Wang, Kaixian Chen, Zhaoxiang Bian, Dajian Yang, Shilin Chen, Aiping Lu, Albert Sun Chi Chan
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Publication number: 20150065339Abstract: Catalysts prepared from abundant, cost effective metals, such as cobalt, nickel, chromium, manganese, iron, and copper, and containing one or more neutrally charged ligands (e.g., monodentate, bidentate, and/or polydentate ligands) and methods of making and using thereof are described herein. Exemplary ligands include, but are not limited to, phosphine ligands, nitrogen-based ligands, sulfur-based ligands, and/or arsenic-based ligands. In some embodiments, the catalyst is a cobalt-based catalyst or a nickel-based catalyst. The catalysts described herein are stable and active at neutral pH and in a wide range of buffers that are both weak and strong proton acceptors. While its activity is slightly lower than state of the art cobalt-based water oxidation catalysts under some conditions, it is capable of sustaining electrolysis at high applied potentials without a significant degradation in catalytic current. This enhanced robustness gives it an advantage in industrial and large-scale water electrolysis schemes.Type: ApplicationFiled: July 2, 2014Publication date: March 5, 2015Inventors: Aaron J. Bloomfield, Stafford W. Sheehan, Samuel L. Collom, Robert H. Crabtree, Paul T. Anastas
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Patent number: 8936659Abstract: A substance includes diamond particles having a maximum linear dimension of less than about 1 ?m and an organic compound attached to surfaces of the diamond particles. The organic compound may include a surfactant or a polymer. A method of forming a substance includes exposing diamond particles to an organic compound, and exposing the diamond particles in the presence of the organic compound to ultrasonic energy. The diamond particles may have a maximum linear dimension of less than about 1 ?m. A composition includes a liquid, a plurality of diamond nanoparticles dispersed within the liquid, and an organic compound attached to surfaces of the diamond nanoparticles. A method includes mixing a plurality of diamond particles with a solution comprising a liquid solvent and an organic compound, and exposing the mixture including the plurality of diamond nanoparticles and the solution to ultrasonic energy.Type: GrantFiled: October 18, 2011Date of Patent: January 20, 2015Assignee: Baker Hughes IncorporatedInventors: Soma Chakraborty, Gaurav Agrawal, Anthony A. DiGiovanni
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Publication number: 20150011138Abstract: The present invention provides a composition, a gypsum board and their preparation method and the use of ascorbic acid as an anti-sagging additive in a gypsum board. Said gypsum board comprises set gypsum prepared from the composition; while said composition comprises hemi-hydrate gypsum, water and a compound comprising group and no carboxylate groups. The set gypsum prepared from the said composition shows better anti-sagging or deformation resisting property. The gypsum board of the present invention is hardly distorted and has stronger stability even in the condition of high humidity, thus improve the quality of the gypsum board to meet the demands of the customer.Type: ApplicationFiled: December 3, 2012Publication date: January 8, 2015Applicant: SAINT-GOBAIN PLACOInventors: Xiaotong Gao, Huifen Li, Hao Song, Ke Zhang
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Publication number: 20150005219Abstract: Use of a compound of Formula (I) as a metal surface corrosion activator, a formulation containing the same compound and a process by using the same compound for providing a clean metal surface. Said formulation may further comprise water, a solvent such as a dipolar aprotic solvent, a water miscible organic solvent, or an organic base.Type: ApplicationFiled: December 20, 2011Publication date: January 1, 2015Applicants: RHODIA OPERATIONS, SOLVAY (CHINA) CO., LTD.Inventors: Fabien Bellenger, Cheng Shen, Claude D. Mercier
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Publication number: 20140364631Abstract: The present disclosure is related to silica-based Lewis acid catalysts, being essentially devoid of strong Brønsted acid character, and their ability to effect the [4+2] cycloaddition and dehydrative aromatization of dienes and dienophiles containing oxygenated substituents to form substituted benzene products. In some embodiments, the processes comprise contacting biomass-derived substrates with ethylene to form terephthalic acid and its derivatives.Type: ApplicationFiled: May 20, 2014Publication date: December 11, 2014Inventors: MARK E. DAVIS, JOSHUA PACHECO
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Publication number: 20140356230Abstract: A synergistic microbicidal composition containing a phenolic compound selected from the class consisting of chlorinated phenols, monosubstituted phenols, fused bicyclic phenols, isopropyl methyl catechols, and monosubstituted catechols and an antimicrobial alcohol selected from the class of menthadiene alcohols and other antimicrobial alcohols.Type: ApplicationFiled: December 5, 2012Publication date: December 4, 2014Applicant: ROHM AND HAAS COMPANYInventors: Robert J. Cornmell, Megan A. Diehl, Stephen Golding, John R. Harp, Ian P. Stott, Katherine M. Thompson, Carol L. Truslow
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Publication number: 20140323457Abstract: The present invention relates to beta-O/S/N fatty acids and derivatives thereof, in particular the compounds of formula (I) as described and defined herein, and their pharmaceutical use, including their use in the treatment or prevention of bacterial as well as protozoan infections, in particular the treatment or prevention of infections with Gram-positive and/or Gram-negative bacteria and infectious diseases caused by and/or related to Gram-positive and/or Gram-negative bacteria. The invention further relates to the use of these compounds for preventing or eliminating biofilms.Type: ApplicationFiled: December 6, 2012Publication date: October 30, 2014Inventors: Thomas Böttcher, Vadim Korotkov, Katrin Lorenz-Baath, Oliver Baron, Stephan Sieber
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Publication number: 20140296343Abstract: Methods and compounds for treating neurological and other disorders are provided. Included is the administering to a subject in need thereof an effective amount of a compound having binding and/or modulation specificity for a TrkB receptor molecule.Type: ApplicationFiled: March 31, 2014Publication date: October 2, 2014Inventors: Frank M. LONGO, Stephen M. MASSA, Sandeep GUPTA
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Publication number: 20140080916Abstract: Compounds that are central nervous system drug candidates for the treatment of cognitive decline and, more particularly, Alzheimer's disease are provided. Methods for treatment, inhibition, and/or abatement of cognitive decline and/or Alzheimer's disease with a compound or pharmaceutically acceptable salt of the invention are also provided. Also provided are methods of preparing the compounds/compositions of the invention.Type: ApplicationFiled: February 1, 2012Publication date: March 20, 2014Applicant: Cognition Therapeutics, Inc.Inventors: Gilbert M. Rishton, Susan Catalano
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Publication number: 20140031562Abstract: A method of performing a chemical reaction includes reacting an allyl donor and a substrate in a reaction mixture, and forming a homoallylic alcohol in the reaction mixture. The substrate may be an aldehyde or a hemiacetal. The reaction mixture includes a ruthenium catalyst, carbon monoxide at a level of at least 1 equivalent relative to the substrate, and water at a level of at least 1 equivalent relative to the substrate, and an amine at a level of from 0 to 0.5 equivalent relative to the substrate. The reaction mixture may also include a halide, and the equivalents of the amine may be similar to those of the halide. The reacting includes maintaining the reaction mixture at a temperature of at least 40° C. The method may be catalytic in metal, environmentally benign, amenable to large-scale applications, and applicable to a wide range of substrates.Type: ApplicationFiled: August 28, 2009Publication date: January 30, 2014Applicant: The Board of Trustees of the University of IllinoiInventors: Scott E. Denmark, Selena Milicevic, Son T. Nguyen
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Publication number: 20130303775Abstract: A process of production of an aromatic alcohol or a heterocyclic aromatic alcohol, containing a step of reacting an aromatic amine or a heterocyclic aromatic amine having an aromatic ring or a heterocyclic aromatic ring having thereon at least one substituent —CHR1NR2R3 (wherein R1, R2 and R3 each independently represent hydrogen, an alkyl group having from 1 to 4 carbon atoms, or a benzyl group), with an alcohol, in the presence of a basic catalyst.Type: ApplicationFiled: December 22, 2011Publication date: November 14, 2013Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yutaka Kanbara, Takafumi Abe, Norio Fushimi
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Publication number: 20130231496Abstract: The present invention is related to a novel synthetic procedure that provides a simple, safe and commercially valuable method for the preparation of 2-phenyl-1,3-propanediol. The process for the preparation of 2-phenyl-1,3-propanediol involves reducing diethyl phenylmalonate with sodium borohydride (NaBH4) in the presence of an alkali metal dihydrogen phosphate buffer or the hydrate thereof.Type: ApplicationFiled: September 5, 2011Publication date: September 5, 2013Applicant: TARO PHARMACEUTICAL INDUSTRIES LTD.Inventors: Daniella Gutman, Wael Baidossi, Sorin Bercovici, Simon Cherniak
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Publication number: 20130158276Abstract: Provided is a catalyst for asymmetric reduction, which can be produced by a convenient and safe production method, has a strong catalytic activity, and has excellent stereoselectivity. The present invention relates to a ruthenium complex represented by the following formula (1): wherein R1 represents an alkyl group or the like; Y represents a hydrogen atom; X represents a halogen atom or the like; j and k each represent 0 or 1; R2 and R3 each represent an alkyl group or the like; R11 to R19 each represent a hydrogen atom, an alkyl group or the like; Z represents oxygen or sulfur; n1 represents 1 or 2; and n2 represents an integer from 1 to 3, a method for producing the ruthenium complex, a catalyst for asymmetric reduction formed from the ruthenium complex, and methods for selectively producing an optically active alcohol and an optically active amine using the catalyst for asymmetric reduction.Type: ApplicationFiled: June 17, 2011Publication date: June 20, 2013Applicant: TAKASAGO INTERNATIONAL CORPORATIONInventors: Taichiro Touge, Hideki Nara, Tomohiko Hakamada
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Patent number: 8461207Abstract: Pharmaceutical compositions comprising at least one compound of the formula (I) and a pharmaceutically acceptable carrier which is useful in a medicine wherein the symbols and substituents have the following meaning —X— is e.g. and Y being e.g. or the pharmaceutically acceptable salts, esters or amides and prodrugs can be applied to modulate the in-vitro and in-vivo binding processes mediated by E-, P- or selectin binding.Type: GrantFiled: February 23, 2011Date of Patent: June 11, 2013Assignee: Revotar Biopharmaceuticals AGInventors: Ewald Aydt, Remo Kranich
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Patent number: 8420637Abstract: The present invention provides a method of treating glaucoma or ocular hypertension which comprises applying to the eye of a person in need thereof an amount sufficient to treat glaucoma or ocular hypertension of a compound of formula I wherein Y, Q, Z, R, R1 and R2 are as defined in the specification. The present invention further comprises pharmaceutical compositions, e.g. ophthalmic compositions, including said compound of formula I.Type: GrantFiled: September 22, 2009Date of Patent: April 16, 2013Assignee: Allergan, Inc.Inventors: June Chen, Simon Pettit, Hans Fliri
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Patent number: 8378146Abstract: Provided is a method for producing catechol in a one-pot by reacting (4S,5R,6S)-4,5,6-trihydroxy-2-cyclohexene-1-one under hydrogen-reducing conditions while heating.Type: GrantFiled: April 7, 2009Date of Patent: February 19, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Tsuneji Suzuki, Takaomi Hayashi, Hideo Kitagawa, Naritoshi Yoshimura
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Publication number: 20130041151Abstract: The present invention provides a novel ruthenium complex which has an excellent catalytic activity in terms of reactivity for asymmetric reduction of a carbonyl compound and enantioselectivity, a catalyst using the ruthenium complex, and a method for preparing optically active alcohol compounds using the ruthenium complex. The present invention relates to a ruthenium complex having ruthenacycle structure, a catalyst for asymmetric reduction consisting of the ruthenium complex, and a method for preparing optically active alcohol using the ruthenium complex.Type: ApplicationFiled: December 14, 2010Publication date: February 14, 2013Applicant: TAKASAGO INTERNATIONAL CORPORATIONInventors: Hideki Nara, Tohru Yokozawa
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Publication number: 20120309933Abstract: A hydrolyzed divinylarene dioxide resin composition including the reaction product of (a) a divinylarene dioxide, and (b) water; a process for making the hydrolyzed divinylarene dioxide resin composition; and a curable hydrolyzed divinylarene dioxide resin composition made therefrom. The cured product made from the above hydrolyzed divinylarene dioxide resin composition offers improved properties such as a lower viscosity and a high heat resistance compared to known cured products prepared from known epoxy resins.Type: ApplicationFiled: December 8, 2010Publication date: December 6, 2012Inventors: Maurice J. Marks, E. Joseph Campbell
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Patent number: 8278356Abstract: Pharmaceutical compositions comprising at least one compound of the formula (I) and a pharmaceutically acceptable carrier which is useful in a medicine wherein the symbols and substituents have the following meaning —X— is e.g. and Y being e.g. or the pharmaceutically acceptable salts, esters or amides and prodrugs can be applied to modulate the in-vitro and in-vivo binding processes mediated by E-, P- or selectin binding.Type: GrantFiled: February 23, 2011Date of Patent: October 2, 2012Assignee: Revotar Biopharmaceuticals AGInventors: Ewald Aydt, Remo Kranich
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Publication number: 20120184762Abstract: Provided are a process for the preparation of phenyl carbamate derivatives, useful in the treatment of CNS (central nervous system) disorders, an intermediate in the synthesis of the phenyl carbamate derivatives, and a process for preparation of the intermediate.Type: ApplicationFiled: December 28, 2011Publication date: July 19, 2012Applicant: Bio-Pharm Solutions Co., Ltd.Inventor: Yong Moon Choi
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Publication number: 20120034464Abstract: A substance includes diamond particles having a maximum linear dimension of less than about 1 ?m and an organic compound attached to surfaces of the diamond particles. The organic compound may include a surfactant or a polymer. A method of forming a substance includes exposing diamond particles to an organic compound, and exposing the diamond particles in the presence of the organic compound to ultrasonic energy. The diamond particles may have a maximum linear dimension of less than about 1 ?m. A composition includes a liquid, a plurality of diamond nanoparticles dispersed within the liquid, and an organic compound attached to surfaces of the diamond nanoparticles. A method includes mixing a plurality of diamond particles with a solution comprising a liquid solvent and an organic compound, and exposing the mixture including the plurality of diamond nanoparticles and the solution to ultrasonic energy.Type: ApplicationFiled: October 18, 2011Publication date: February 9, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Soma Chakraborty, Gaurav Agrawal, Anthony A. DiGiovanni
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Patent number: 8101804Abstract: A subject-matter of the present invention is a novel process for the synthesis of (E)-stilbene derivatives targeted at obtaining in particular resveratrol and piceatannol.Type: GrantFiled: July 25, 2007Date of Patent: January 24, 2012Assignee: Clariant Specialty Fine Chemicals (France)Inventors: Alain Schouteeten, Sébastien Jus, Jean-Claude Vallejos
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Publication number: 20120010417Abstract: A method for producing an alcohol compound, wherein a carboxylic acid ester compound is reduced with hydrogen in the presence of a ruthenium complex which is obtained by reacting an imidazolium salt (A) having at least one optionally substituted amino group with a ruthenium compound (B) in the presence of a base (C).Type: ApplicationFiled: March 29, 2010Publication date: January 12, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Hagiya, Yasutaka Aoyagi
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Publication number: 20120004310Abstract: Methods and compounds for treating neurological and other disorders are provided. Included is the administering to a subject in need thereof an effective amount of a compound having binding and/or modulation specificity for a TrkB receptor molecule.Type: ApplicationFiled: May 27, 2011Publication date: January 5, 2012Inventors: Frank M. LONGO, Stephen M. Massa, Sandeep Gupta
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Publication number: 20110313204Abstract: The invention relates to a catalytic method for the industrial production of a diol compound, such as 2-methyl-2-4-pentanediol, also called 2,4-hexylene glycol (HGL), from a ?-hydroxy carbonyl compound, Formula (I), in particular diacetone alcohol (DAA).Type: ApplicationFiled: December 15, 2009Publication date: December 22, 2011Applicant: RHODIA POLIAMIDA E ESPECIALIDADES LTDAInventors: Danilo Zim, Philippe Marion
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Publication number: 20110313203Abstract: The present invention relates to a process for purifying crude polymethylol which comprises polymethylol of the formula (I) (HOCH2)2—C—R2 ??(I) in which each R is independently a further methylol group or an alkyl group having 1 to 22 carbon atoms or an aryl or aralkyl group having 6 to 22 carbon atoms, and also hydroxy acid of the formula (IV) in which each R is independently as defined above, which comprises performing the purification in a distillation column, the bottom of the distillation column being connected to an evaporator with a short residence time. The present invention further relates to a composition comprising polymethylol and 1 to 10 000 ppm by weight of an ester of polymethylol and of a hydroxy acid and to the use thereof.Type: ApplicationFiled: December 7, 2009Publication date: December 22, 2011Applicant: BASF SEInventors: Tilman Sirch, Michael Steiniger, Steffen Maas, Stefan Rittinger
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Publication number: 20110313197Abstract: A method for producing a halogen-substituted benzene dimethanol, the method including: a first step of reacting a compound represented by formula (1) with a compound represented by formula (2) to obtain a dicarboxamide compound represented by formula (3), and a second step of reducing the dicarboxamide compound using a borohydride compound to obtain a halogen-substituted benzene dimethanol represented by formula (4).Type: ApplicationFiled: March 4, 2010Publication date: December 22, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Hagiya, Yasutaka Aoyagi
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Patent number: 8067640Abstract: The present invention relates to a novel method for the preparation of diol intermediates having the formula (II) and/or the opposite enantiomer of an acylated diol having the formula (IV) useful for the preparation of escitalopram involving selective enzymatic acylation or deacylation.Type: GrantFiled: May 17, 2010Date of Patent: November 29, 2011Assignee: H. Lundbeck A/SInventors: Naoki Taoka, Takahisa Kato, Shogo Yamamoto, Takashi Yoshida, Toshihiro Takeda, Yasuyoshi Ueda, Hans Petersen, Robert Dancer, Haleh Ahmadian, Lars O. Lyngso
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Publication number: 20110282077Abstract: The object of the present invention is to solve the problems in the prior arts, and to find more improved reaction conditions for suppressing the racemization of the product and obtaining an optically active alcohol at a high optical purity. The inventors achieved to solve the above problems by using a solvent system that is capable of resolving both an asymmetric catalyst and a formate salt, allowing the hydrogen source and the asymmetric catalyst to be present in the same phase.Type: ApplicationFiled: May 10, 2011Publication date: November 17, 2011Applicant: Kanto Kagaku Kabushiki KaishaInventors: Taito Hatakeyama, Kunihiko Murata, Kunihiko Tsutsumi, Noriyuki Utsumi
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Patent number: 8049042Abstract: To provide a resist polymer comprising, as a structural unit, an acid-decomposable unit having a structure represented by formula (1) or (2) which exhibits a small line edge roughness and produces little defects in DUV excimer laser lithography or the like.Type: GrantFiled: March 26, 2009Date of Patent: November 1, 2011Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hikaru Momose, Atsushi Ootake, Tadashi Nakamura, Akifumi Ueda
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Publication number: 20110218366Abstract: The invention relates to a process for the alkylation of benzene with isopropanol (IPA) as alkylating agent, or blends of isopropanol and propylene, which comprises effecting said reaction completely in gaseous phase and in the presence of a catalytic system containing a zeolite belonging to the MTW family.Type: ApplicationFiled: September 7, 2009Publication date: September 8, 2011Applicant: POLIMERI EUROPA S.P.A.Inventors: Loreno Lorenzoni, Paolo Calaresu, Pier Gianni Cabras
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Publication number: 20110184169Abstract: The present invention discloses a process for isolating enantiomer components from a mixture of enantiomers through particle-size-controlled crystallization, comprising the steps of: (a) forming a solution of a mixture of enantiomers (R) and (S) in a solvent in the absence of any further additives or agents; (b) seeding the solution of step (a) simultaneously or consecutively with seed crystals of enantiomer (R) and with seed crystals of enantiomer (S), wherein the seed crystals of enantiomer (R) differ in size and/or in quantity from the seed crystals of enantiomer (S) to allow separation of the crystals composed of a mixture enriched with enantiomer (R) from the crystals composed of a mixture enriched with enantiomer (S); (c) inducing simultaneous crystallization of enantiomer (R) and enantiomer (S); and (d) isolating crystals composed of a mixture enriched with enantiomer (R) from crystals composed of a mixture enriched with enantiomer (S) through size separation of the crystals, preferably through sievingType: ApplicationFiled: July 28, 2009Publication date: July 28, 2011Inventors: David Maillard, Guntram Koller, Ewgenij Wakaresko, Sabine Gottburg-Reininger
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Patent number: 7973201Abstract: A process for the production of a halogen-substituted benzenedimethanol represented by the formula (2): wherein X1, X2, X3 and X4 are the same or different and independently represent a hydrogen atom or a halogen atom, provided that at least one of X1, X2, X3 and X4 represents a halogen atom, comprising reacting a halogen-substituted terephthalic acid diester represented by the formula (1): wherein X1, X2, X3 and X4 are the same meanings as defined above and R1 and R2 are the same or different and independently represent an unsubstituted or substituted alkyl group, a metal borohydride compound and an acid in the presence of an ether solvent, wherein the amount of the acid is 0.2 to 3 moles per 1 mole of the metal borohydride compound based on protons, and the reaction is conducted under the condition where the liquid phase of the reaction mixture is a single layer.Type: GrantFiled: June 21, 2007Date of Patent: July 5, 2011Assignee: Sumitomo Chemical Company, LimitedInventor: Koji Hagiya
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Patent number: 7956223Abstract: A method for producing a halogen-substituted benzenedimethanol represented by the formula (2): wherein X1, X2, X3 and X4 are the same or different and each independently represent a hydrogen atom or a halogen atom, provided that X1, X2, X3 and X4 are not hydrogen atoms at the same time, by reacting a halogen-substituted terephthalic acid represented by the formula (1): wherein X1, X2, X3 and X4 are the same meanings as defined above, with a borohydride compound in an organic solvent, followed by contacting the obtained reaction mixture with hydrogen chloride at 40 to 70° C.Type: GrantFiled: January 16, 2007Date of Patent: June 7, 2011Assignee: Sumitomo Chemical Company, LimitedInventor: Koji Hagiya
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Publication number: 20110092747Abstract: Esters and lactones can be respectively reduced to alcohols and diols in the presence of the Group 8 (VIII) transition metal complex, base and hydrogen gas (H2). An extremely practical reduction method can be provided by preferable combinations of the Group 8 (VIII) transition metal complex, the base, a used amount of the base, a pressure of hydrogen gas and a reaction temperature. This method is used in place of hydride reduction and is a useful method by which design of highly active catalysts can be relatively easily made while a high productivity can be expected.Type: ApplicationFiled: June 26, 2009Publication date: April 21, 2011Applicants: TOKYO INSTITUTE OF TECHNOLOGY, CENTRAL GLASS COMPANY, LIMITEDInventors: Takao Ikariya, Masato Ito, Akira Shiibashi, Takashi Ootsuka
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Patent number: 7906684Abstract: The present invention relates to the use of compounds of the formula (I) where R stands for [lacuna] with radicals defined in the description, as antioxidants, to corresponding novel compounds and compositions, and to corresponding processes for the preparation of compounds and compositions.Type: GrantFiled: April 5, 2007Date of Patent: March 15, 2011Assignee: Merck Patent Gesellschaft Mit Beschrankter HaftungInventors: Thomas Rudolph, Herwig Buchholz
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Publication number: 20110034735Abstract: Provided is a method for producing catechol in a one-pot by reacting (4S,5R,6S)-4,5,6-trihydroxy-2-cyclohexene-1-one under hydrogen-reducing conditions while heating.Type: ApplicationFiled: April 7, 2009Publication date: February 10, 2011Applicant: Mitsui Chemicals, Inc.Inventors: Tsuneji Suzuki, Takaomi Hayashi, Hideo Kitagawa, Naritoshi Yoshimura
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Publication number: 20110009648Abstract: This invention relates to processes and intermediates for the stereoselective alkylation of carbonyl groups. The invention in particular allows the stereoselective preparation of the antidepressant drug escitalopram. It has been found that boric or boronic acid derivatives are useful bridging elements for the attachment of a chiral group to a compound containing a carbonyl group to be alkylated. The said borates and boronates are thus useful in a process for the asymmetric alkylation of a carbonyl group in a compound containing a carbonyl group and an anchor group capable of reacting with a boric or boronic acid derivative. The asymmetric alkylation can be carried out by admixing the compound containing a carbonyl group to be alkylated and the anchor group capable of reacting with a boric or boronic acid derivative with a boric or boronic acid derivative, adding a chiral alcohol, and adding an organometallic compound. After the alkylation reaction, the borate and boronate can be easily removed by hydrolysis.Type: ApplicationFiled: January 22, 2007Publication date: January 13, 2011Applicant: Sandoz AGInventors: Martin Albert, Hubert Sturm, Andreas Berger, Peter Kremminger
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Publication number: 20100240713Abstract: This invention is directed to compounds of formula (I), wherein m, formula (II), R1, R2 and R3 are as defined herein, as a stereoisomer, enantiomer, tautomer thereof or mixtures thereof; or a pharmaceutically acceptable salt, solvate or prodrug thereof, for the treatment of iron disorders. This invention is also directed to pharmaceutical compositions comprising the compounds and methods of using the compounds to treat iron disorders.Type: ApplicationFiled: June 5, 2008Publication date: September 23, 2010Applicant: XENON PHARMACEUTICALS INC.Inventors: Jean-Jacques Cadieux, Mikhail Chafeev, Julia Fonarev, Jianmin Fu, Rajender Kamboj, Vishnumurthy Kodumuru, Serguei Sviridov, Zaihui Zhang
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Publication number: 20100174122Abstract: A process for the production of a halogen-substituted benzenedimethanol represented by the formula (2): wherein X2, X2, X3 and X4 are the same or different and independently represent a hydrogen atom or a halogen atom, provided that at least one of X1, X2, X3 and X4 represents a halogen atom, comprising reacting a halogen-substituted terephthalic acid diester represented by the formula (1): wherein X1, X2, X3 and X4 are the same meanings as defined above and R1 and R2 are the same or different and independently represent an unsubstituted or substituted alkyl group, a metal borohydride compound and an acid in the presence of an ether solvent, wherein the amount of the acid is 0.2 to 3 moles per 1 mole of the metal borohydride compound based on protons, and the reaction is conducted under the condition where the liquid phase of the reaction mixture is a single layer.Type: ApplicationFiled: June 21, 2007Publication date: July 8, 2010Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Koji Hagiya
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Publication number: 20100105961Abstract: A method of producing a crystal polymorph of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene, comprising the steps of reacting fluorenone and 2-phenoxyethanol in the presence of a heteropolyacid, initiating deposition of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene at lower than 50° C. from the resultant mixture to obtain a crude product of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene, dissolving the crude product in at least one solvent selected from the group consisting of aromatic hydrocarbon solvents, ketone solvents and ester solvents, and initiating deposition of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene at 50° C. or higher.Type: ApplicationFiled: February 1, 2008Publication date: April 29, 2010Applicant: Taoka Chemical Company, LimitedInventors: Katsuhiro Fujii, Kota Fukui
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Patent number: 7700657Abstract: Novel vitamin D analogs, markedly active in the fields of cell proliferation and differentiation, are selected from among (4E,6E)-7-{3-[2-(3,4-bis-hydroxymethylphenyl)-ethyl]phenyl}-3-ethylnona-4,6-dien-3-ol, (E)-6-[3-(3,4-bis-hydroxymethylbenzyloxy)phenyl]1,1,1-trifluoro-2-trifluoromethyloct-5-en-3-yn-2-ol, (3E,5E)-6-[3-(3,4-bis-hydroxymethylbenzyloxy)-phenyl]-1,1,1-trifluoro-2-trifluoromethylocta-3,5-dien-2-ol, (E)-6-{3-[2-(3,4-bis-hydroxymethylphenyl)ethyl]phenyl}-1,1,1-trifluoro-2-trifluoromethyloct-5-en-3-yn-2-ol, and (3E,5E)-6-{3-[2-(3,4-bis-hydroxymethylphenyl)-ethyl]phenyl-1,1,1-trifluoro-2-trifluoromethylocta-3,5-dien-2-ol, and the geometric isomers thereof and these compounds in which one or more of the hydroxyl functions are protected by a protective group —(C?O)—R, in which R is a linear or branched alkyl radical having from 1 to 6 carbon atoms, an aryl radical having from 6 to 10 carbon atoms, or an aralkyl radical having from 7 to 11 carbon atoms, the aryl radical or the aralkyl radical optionalType: GrantFiled: November 24, 2003Date of Patent: April 20, 2010Assignee: Galderma Research & DevelopmentInventor: Jean-Michel Bernardon
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Patent number: 7678947Abstract: A method for producing a halogen-substituted benzenedimethanol represented by the formula (2): wherein X1 to X4 are the same or different and independently represent a halogen atom or the like, provided that at least one of X1 to X4 is a halogen atom, by reacting a halogen-substituted terephthalic acid diester represented by the formula (1): wherein R1 and R2 are the same or different and independently represent a C1-C20 alkyl group which may have a substitutent or substituents, and X1 to X4 is the same as defined above, with a borohydride compound in the presence of an alcohol which comprises adding the alcohol into a mixture of the halogen-substituted terephthalic acid diester represented by the formula (1), the borohydride compound and a solvent.Type: GrantFiled: August 2, 2005Date of Patent: March 16, 2010Assignee: Sumitomo Chemical Company, LimitedInventor: Koji Hagiya
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Publication number: 20100063294Abstract: Provided is an alcohol production method comprising the step of reducing an ester or a lactone with hydrogen to produce a corresponding alcohol without addition of a base compound by using, as a catalyst, a ruthenium complex represented by the following general formula (1): RuH(X)(L1)(L2)n ??(1) wherein X represents a monovalent anionic ligand, L1 represents a tetradentate ligand having at least one coordinating phosphino group and at least one coordinating amino group or a bidentate aminophosphine ligand having one coordinating phosphino group and one coordinating amino group, and L2 represents a bidentate aminophosphine ligand having one coordinating phosphino group and one coordinating amino group, provided that n is 0 when L1 is the tetradentate ligand, and n is 1 when L1 is the bidentate aminophosphine ligand.Type: ApplicationFiled: September 3, 2009Publication date: March 11, 2010Applicant: TAKASAGO INTERNATIONAL CORPORATIONInventors: Wataru KURIYAMA, Yasunori Ino, Osamu Ogata
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Patent number: 7618966Abstract: The present invention provides a method of treating glaucoma or ocular hypertension which comprises applying to the eye of a person in need thereof an amount sufficient to treat glaucoma or ocular hypertension of a compound of formula I wherein Y, Q, Z, R, R1 and R2 are as defined in the specification. The present invention further comprises pharmaceutical compositions, e.g. ophthalmic compositions, including said compound of formula I.Type: GrantFiled: April 24, 2006Date of Patent: November 17, 2009Assignee: Allergan, Inc.Inventors: June Chen, Simon Pettit, Hans Fliri
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Patent number: 7465838Abstract: The present invention relates to a method for the preparation of C2-symmetric 1,4-diols of the formula IVA or IVB, wherein ring A, R1 and R2 have the meanings given in the specification, that makes use of the metallation of pure enantiomers of ?-(aryl or heteroaryl)-?-substituted alkanol compounds or the use of said alkanol compounds in the preparation of said mmetric 1,4-diols; novel C2-symmetric 1,4-diols in enantiomerically pure form; and methods of use or their use in the synthesis of chiral ligands which find use to produce catalysts for a variety of asymmetric transformations such as hydrogenations.Type: GrantFiled: September 23, 2003Date of Patent: December 16, 2008Assignee: Ciba Specialty Chemical Corp.Inventor: Ulrich Berens
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Supported ruthenium nanoparticle catalyst for cis -dihydroxylation and oxidative cleavage of alkenes
Patent number: 7393985Abstract: The present invention relates to the use of nanosized metal particles (e.g., ruthenium) grafted on inert solid support for oxidation of alkenes. The supported metal catalyst can effect cis-dihydroxylation and oxidative cleavage of alkenes to give the respective cis-diols and carbonyl products.Type: GrantFiled: April 19, 2005Date of Patent: July 1, 2008Assignee: The University of Hong KongInventors: Chi-Ming Che, Wing-Yiu Yu, Chi-Ming Ho -
Publication number: 20080114185Abstract: A method for producing an unsaturated vicinal diol compound represented by the formula (2): wherein R1, R2, R3, R4, R5 and R are the same or different and each independently represent a hydrogen atom; a C1-C20 alkyl group which may be substituted with a halogen atom or atoms, a C1-C6 alkoxy group or groups, a C2-C7 alkoxycabonyl group or groups, a C6-C10 aryl group or groups, or a carboxyl group or groups; or a C6-C10 aryl group which may be substituted with a halogen atom or atoms, a C1-C6 alkoxy group or groups, a C6-C10 aryl group or groups, or a carboxyl group or groups; which comprises reacting an unsaturated epoxy compound represented by the formula (1): wherein R1, R2, R3, R4, R5 and R6 are the same as defined above, with water in the presence of a silicate containing at least one element selected from a group 5 element and a group 6 element of the long periodic table as a constituent.Type: ApplicationFiled: September 9, 2005Publication date: May 15, 2008Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Koji Hagiya