Plural Alicyclic Rings Patents (Class 562/498)
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Patent number: 6878723Abstract: The invention concerns compounds inhibiting LTA4 hydrolase of formula (I). The invention also concerns their therapeutic, in particular anti-inflammatory, applications.Type: GrantFiled: April 6, 2000Date of Patent: April 12, 2005Assignees: Institut National de la Sante et de la rescherche Medicale (INSERM), BioprojetInventors: Denis Danvy, Thierry Monteil, Jean-Christophe Plaquevent, Pierre Duhamel, Lucette Duhamel, Nadine Noel, Claude Gros, Olivier Chamard, Jean-Charles Schwartz, Jeanne-Marie Lecomte, Serge Piettre
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Patent number: 6864278Abstract: Sordarin derivatives prepared from C-11-hydroxysordarin are antifungal agents useful in the treatment and/or prevention of human and animal fungal infections, as well as in the control of phytopathogenic fungi in crops.Type: GrantFiled: July 12, 2002Date of Patent: March 8, 2005Assignee: Merck & Co., Inc.Inventors: James M. Balkovec, Bruno Tse
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Patent number: 6846941Abstract: Disclosed are processes for separating valuable products, including unsaponifiable materials, from any given matrix of raw materials that is mainly composed of saponifiable components and unsaponifiable components. Preferred methods include converting sodium or potassium soaps obtained from the saponification of a starting material into metallic soaps which have a lower melting point, and when melted, have viscosity sufficiently low to enable processing such as by distillation evaporation processes. Preferred raw materials include animal or vegetable products, as well as by-products, residues, and waste products from the processing of animal or vegetable products, such as from food processing, cellulose processing and the like. Valuable products which may be obtained by the disclosed processes include sterols, vitamins, flavonoids, and tocopherols.Type: GrantFiled: February 20, 2002Date of Patent: January 25, 2005Assignee: Resitec Industria Quimica Ltda.Inventors: Rodolfo Rohr, Raul Rohr, Jose Anibal Trujillo-Quijano
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Publication number: 20040220425Abstract: Accordingly the present invention provides an improved and economical process for the isolation of oleanolic acid from the roots of Lantana camara, which comprises of drying, grinding and defattening of Lantana camara roots with light petroleum followed by over night extractions at room temperature (30-40° C.) three times with a single solvent selected from CH2Cl2, CHCl3, EtOAc, ether, acetone, MeOH, EtOH etc., removal of solvent under vacuum at 35-45° C., precipitation of crude extract and repeated partial crystallization of precipitate with a single solvent selected from CH2Cl2, CHCl3, EtOAc, ether, acetone, MeOH, EtOH, H2O and others resulting in the isolation of oleanolic acid with 1% yield.Type: ApplicationFiled: March 30, 2004Publication date: November 4, 2004Inventors: Santosh Kumar Srivastava, Merajuddin Khan, Suman Preet Singh Khanuja
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Publication number: 20040204389Abstract: The present invention provides compounds of the general structure: 1Type: ApplicationFiled: April 14, 2003Publication date: October 14, 2004Inventors: Chin Ho Chen, Li Huang
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Patent number: 6794111Abstract: A polymer comprising recurring units of formula (1-1) or (1-2) wherein R1, R2, R3 and R4 are H or alkyl, or R1 and R2, and R3 and R4 taken together may form a ring with each pair being alkylene, and k is 0 or 1 and having a Mw of 1,000-500,000 is novel. A resist composition comprising the polymer as a base resin is sensitive to high-energy radiation, has excellent sensitivity, resolution, etching resistance, and minimized swell and lends itself to micropatterning with electron beams or deep-UV.Type: GrantFiled: April 22, 2002Date of Patent: September 21, 2004Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Tsunehiro Nishi, Takeshi Kinsho, Seiichiro Tachibana, Takeru Watanabe, Koji Hasegawa, Tomohiro Kobayashi
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Publication number: 20040171675Abstract: Sordarin derivatives prepared from C-11-hydroxysordarin are antifungal agents useful in the treatment and/or prevention of human and animal fungal infections, as well as in the control of phytopathogenic fungi in crops.Type: ApplicationFiled: January 16, 2004Publication date: September 2, 2004Inventors: James M. Balkovec, Bruno Tse
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Publication number: 20040147608Abstract: This invention relates to novel cyclopropyl &bgr;-amino acids derivatives of the formula 1Type: ApplicationFiled: January 16, 2004Publication date: July 29, 2004Inventors: Jacob Bradley Schwarz, David Juergen Wustrow
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Publication number: 20040147482Abstract: Thee present invention relates to therapeutically active cubane compounds, a method of preparing the same, and to pharmaceutical compositions comprising the compounds. The novel compounds are useful in creating diseases of the central nervous system related to the metabotropic glutamate receptor system.Type: ApplicationFiled: January 14, 2004Publication date: July 29, 2004Applicant: Prescient NeuroPharma Inc.Inventors: Hassan Pajouhesh, Kenneth Curry
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Patent number: 6740778Abstract: The present invention relates to a method for preparing oleanolic acid and/or maslinic acid and physiologically acceptable salts thereof, which comprises the steps of extracting olive plant and/or products obtained in the olive oil-manufacturing processes with water and/or an organic solvent and then concentrating and/or fractionating/purifying the resulting extract.Type: GrantFiled: February 7, 2003Date of Patent: May 25, 2004Assignee: The Nisshin Oillio, Ltd.Inventors: Noriyasu Kuno, Gou Shinohara
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Publication number: 20040073060Abstract: The invention relates to a process for producing a fraction enriched upto 100% of 3-O-acetyl-11-keto-&bgr;-boswellic acid. An organic solvent extract of gum resin from Boswellia species is first subjected to oxidation and then acetylation or vice versa. This converts the less potent boswellic acids present in the fraction to AKBA. This treated fraction is subjected to further purification and separation by chromatographic separation techniques to enhance its purity and to remove contaminants therefrom. This process provide an access to a fraction enriched in 10-100% AKBA for therapeutic applications.Type: ApplicationFiled: May 16, 2003Publication date: April 15, 2004Inventors: Ganga Raju Gokaraju, Rama Raju Gokaraju, Venkata Subbaraju Gottumukkala, Trimurtulu Golakoti, Sridhar Pratha
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Publication number: 20040068141Abstract: The present invention addresses a process for the preparation of 2,4,5-trifluorophenylacetic acid using a Cu(I) salt as a catalyst.Type: ApplicationFiled: October 7, 2003Publication date: April 8, 2004Inventors: Joseph D. Armstrong, Spencer D. Dreher, Norihiro Ikemoto
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Patent number: 6700014Abstract: A process for extracting oleanolic acid from plant material is disclosed. Dried plant material is provided and an extraction process is carried out with a non-halogenated polar to medium polar solvent. The resulting solution that contains oleanolic acid is separated from the plant material and the solvent is removed using cooling, vacuum-evaporation or other techniques. A precipitate is formed that contains mostly oleanolic acid. Subsequent purification steps to provide highly purified oleanolic acid include washing techniques, re-crystallization techniques or the use of chromatography.Type: GrantFiled: December 19, 2001Date of Patent: March 2, 2004Assignee: E. & J. Gallo WineryInventor: Gerold Jerz
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Publication number: 20030236303Abstract: Compounds and methods useful for chemopreventative treatment of diseases such as cancer, Alzheimer's disease, Parkinson's disease, inflammatory bowel diseases, and multiple sclerosis.Type: ApplicationFiled: March 24, 2003Publication date: December 25, 2003Applicant: Trustees of Darmouth CollegeInventors: Gordon W. Gribble, Tadashi Honda, Michael B. Sporn, Nanjoo Suh
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Publication number: 20030199710Abstract: This invention is directed to functionalized higher diamondoids having at least one functional group.Type: ApplicationFiled: December 6, 2002Publication date: October 23, 2003Inventors: Shenggao Liu, Robert M. Carlson, Jeremy E. Dahl, Waqar R. Qureshi
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Publication number: 20030171613Abstract: The present invention relates to a method for preparing oleanolic acid and/or maslinic acid and physiologically acceptable salts thereof, which comprises the steps of extracting olive plant and/or products obtained in the olive oil-manufacturing processes with water and/or an organic solvent and then concentrating and/or fractionating/purifying the resulting extract.Type: ApplicationFiled: February 7, 2003Publication date: September 11, 2003Applicant: The Nisshin Oillio, Ltd.Inventors: Noriyasu Kuno, Gou Shinohara
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Patent number: 6603041Abstract: Enamide derivatives of formula (1) are described: wherein R1 is a group Ar1L2Ar2Alk- in which Ar1 is an optionally substituted aromatic or heteroaromatic group, L2 is a covalent bond or a linker atom or group, Ar2 is an optionally substituted arylene or heteroarylene group and Alk is a chain —CH2—CH(R)—, —CH═C(R)— or in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; R2 is a hydrogen atom or a C1-6alkyl group; X is an O or S atom or the group NR30 group; j and k is each zero or the integer 1 or 2 provided that the sum of j and k is zero or the integer 1 or 2; Cy1 is an optionally substituted cycloaliphatic, heterocycloaliphatic, aromatic or heteroaromatic group; and the salts, solvates, hydrates and N-oxides thereof.Type: GrantFiled: September 5, 2001Date of Patent: August 5, 2003Assignee: Celltech R & D LimitedInventors: Timothy John Norman, John Robert Porter, John Clifford Head, Andrew James Ratcliffe
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Patent number: 6586619Abstract: The present invention relates to novel monomers which can be used to form polymers which are useful in a photolithography employing a light source in the far ultraviolet region of the light spectrum, copolymers thereof, and photoresist compositions prepared therefrom. Photoresist monomers of the present invention are represented by the following Chemical Formula 1: wherein, R is substituted or non-substituted linear or branched (C1-C10) alkyl, substituted or non-substituted (C1-C10) ether, substituted or non-substituted (C1-C10) ester, or substituted or non-substituted (C1-C10) ketone; X and Y are independently CH2, CH2CH2, oxygen or sulfur; and i is 0 or an integer of 1 to 2.Type: GrantFiled: February 19, 2002Date of Patent: July 1, 2003Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Geun Su Lee, Cha Won Koh, Jae Chang Jung, Min Ho Jung, Ki Ho Baik
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Publication number: 20030120095Abstract: Disclosed are processes for separating valuable products, including unsaponifiable materials, from any given matrix of raw materials that is mainly composed of saponifiable components and unsaponifiable components. Preferred methods include converting sodium or potassium soaps obtained from the saponification of a starting material into metallic soaps which have a lower melting point, and when melted, have viscosity sufficiently low to enable processing such as by distillation/evaporation processes. Preferred raw materials include animal or vegetable products, as well as by-products, residues, and waste products from the processing of animal or vegetable products, such as from food processing, cellulose processing and the like. Valuable products which may be obtained by the disclosed processes include sterols, vitamins, flavonoids, and tocopherols.Type: ApplicationFiled: February 20, 2002Publication date: June 26, 2003Inventors: Rodolfo Rohr, Raul Rohr
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Publication number: 20030114708Abstract: A process for extracting oleanolic acid from plant material is disclosed. Dried plant material is provided and an extraction process is carried out with a non-halogenated polar to medium polar solvent. The resulting solution that contains oleanolic acid is separated from the plant material and the solvent is removed using cooling, vacuum-evaporation or other techniques. A precipitate is formed that contains mostly oleanolic acid. Subsequent purification steps to provide highly purified oleanolic acid include washing techniques, re-crystallization techniques or the use of chromatography.Type: ApplicationFiled: December 19, 2001Publication date: June 19, 2003Inventor: Gerold Jerz
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Patent number: 6576786Abstract: The invention relates to a process for preparing substituted cyclopentane derivatives represented by the formula (I) wherein R1, R2, R3, R4, X and Y are as described in the specification, and pharmaceutically acceptable salts thereof. The invention further relates to a process for purifying the compound of formula (Ia) and novel crystalline forms of the compound of formula (Ia).Type: GrantFiled: November 26, 2001Date of Patent: June 10, 2003Assignee: Biocryst Pharmaceuticals Inc.Inventors: Ahmed F. Abdel-Magid, Hans-Ulrich Bichsel, Daniel J. Korey, Gunther G. Laufer, Erja A. Lehto, Sebastiano Mattei, Max Rey, Thomas W. Schultz, Cynthia Maryanoff
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Patent number: 6559337Abstract: A photoresist composition contains a photoacid generator and a polymer represented by the following formula: wherein R4, R6 and R9 each represents a hydrogen atom or a methyl group, R5 and R7 each represents a C17-23 divalent hydrocarbon group containing a bridged cyclic hydrocarbon group, R8 represents an acid-decomposable group, R10 represents a hydrogen atom or a C1-12 hydrocarbon group, x+y+z equals to 1, and x, y and z stand for 0 to 1, 0 to 1, and 0 to 0.9, respectively, and having a weight average molecular weight of from 1,000 to 500,000. According to the present invention, a chemical modification photoresist composition having high transparency to radiation of 220 nm and shorter and improved in etching resistance can be provided.Type: GrantFiled: March 20, 2001Date of Patent: May 6, 2003Assignee: NEC CorporationInventors: Katsumi Maeda, Shigeyuki Iwasa, Kaichiro Nakano, Etsuo Hasegawa
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Publication number: 20030022930Abstract: This invention provides compounds of the formula: 1Type: ApplicationFiled: June 27, 2002Publication date: January 30, 2003Applicant: WyethInventors: Gary Paul Stack, John Dunlop, Alexander Alexei Greenfield, Jonathan Laird Gross
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Publication number: 20020177642Abstract: Compounds and compositions comprising specific metal salts of bicyclo[2.2.1]heptane dicarboxylate salts in order to provide highly desirable properties within polyolefin articles are provided. The inventive salts and derivatives thereof are useful as nucleating and/or clarifying agents for such polyolefin, provide excellent crystallization temperatures, stiffness, and calcium stearate compatibility within target polyolefin. Also, such compounds exhibit very low hygroscopicity and therefore excellent shelf stability as powdered or granular formulations. Polyolefin additive compositions and methods of producing polyolefin with such compounds are also contemplated within this invention.Type: ApplicationFiled: November 3, 2001Publication date: November 28, 2002Inventors: Xiaodong Edward Zhao, Darin L. Dotson, Brian M. Burkhart, Jeffrey R. Jones
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Publication number: 20020161047Abstract: The compounds of formula I-IV: 1Type: ApplicationFiled: January 25, 2002Publication date: October 31, 2002Inventors: Maria Chovet, Laurent Diop
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Patent number: 6455225Abstract: The present invention provides novel photoresist monomers, and photoresist polymers derived from monomers comprising the same. The photoresist monomers of the present invention are represented by the following formula: where Z1, Z2, R1, R2, R3, R4, R5 and p are those defined herein. The photoresist compositions comprising the photoresist polymers of the present invention have excellent etching resistance and heat resistance, and remarkably enhanced PED stability (post exposure delay stability).Type: GrantFiled: August 16, 2000Date of Patent: September 24, 2002Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Keun Kyu Kong, Jae Chang Jung, Geun Su Lee, Ki Ho Baik
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Patent number: 6392104Abstract: In the presence of an imide compound (e.g., N-hydroxyphthalimide) shown by the formula (2): wherein R1 and R2 independently represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cycloalkyl group; or R1 and R2 may bond together to form a double bond or an aromatic or non-aromatic ring; Y is O or OH and n=1 to 3; or the imide compound and a co-catalyst (e.g., a transition metal compound), an adamantane derivative having a functional group such as a nitro group, an amino group, a hydroxyl group, a carboxyl group, a hydroxymethyl group and an isocyanato group is oxidized with oxygen. According to the above method, an adamantane derivative having a hydroxyl group together with a functional group such as a nitro group, an amino group, a hydroxyl group, a carboxyl group, a hydroxymethyl group and an isocyanato group is efficiently obtained.Type: GrantFiled: November 10, 1998Date of Patent: May 21, 2002Assignee: Daicel Chemical Industries, Ltd.Inventors: Yasutaka Ishii, Tatsuya Nakano, Naruhisa Hirai
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Patent number: 6392086Abstract: The present inventions relate to a (1S,5R,6S)- or (1SR, 5RS, 6SR)-3-fluoro-2-oxobicyclo[3.1.0]hex-3-ene-6-carboxylic acid derivative represented by Formula (1): [in the formula, R represents OR1 or NR1R2, wherein R1 and R2 are identical or different, and each represents a hydrogen atom, a C1-C6 alkyl group, a C3-C6 cycloalkyl group, a (C3-C6 cycloalkyl) (C1-C6 alkyl) group, an aryl group, an aryl (C1-C6 alkyl) group, a (C1-C6 alkoxy) (C1-C6 alkyl) group, a C1-C6 hydroxyalkyl group, a (C1-C6 alkylthio) (C1-C6 alkyl) group, or a C1-C6 mercaptoalkyl group], and a process for producing the same, and a process for efficiently producing a fluorine-containing amino acid compound acting on group 2 metabotropic glutamate receptors, which has treatment effects or prevention effects on psychiatric diseases or neurological diseases, characterized by hydrogenating the derivative, and subsequently, subjecting it to hydantoination or aminocyanidation, followed by hydrolysis.Type: GrantFiled: June 7, 2001Date of Patent: May 21, 2002Assignee: Taisho Pharmaceutical Co., Ltd.Inventors: Atsuro Nakazato, Toshihito Kumagai, Kazunari Sakagami, Kazuyuki Tomisawa, Hisanako Ito, Takeo Taguchi
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Publication number: 20020042535Abstract: Compounds and methods useful for chemopreventative treatment of diseases such as cancer, Alzheimer's disease, Parkinson's disease, inflammatory bowel diseases, and multiple sclerosis.Type: ApplicationFiled: August 9, 2001Publication date: April 11, 2002Applicant: Trustees of Dartmouth CollegeInventors: Gordon W. Gribble, Tadashi Honda, Michael B. Sporn, Nanjoo Suh
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Patent number: 6365768Abstract: Novel compounds are disclosed that have the chemical structure of Formula (IIB), and its prodrug esters and acid-addition salts, and that are useful as Interleukin-1 and Tumor Necrosis Factor-&agr; modulators, and thus are useful in the treatment of various diseases. wherein the R groups include the following: R1 is selected from the group consisting of hydrogen, a halogen, COOH, C1-C12 carboxylic acids, C1-C12 acyl halides, C1-C12 acyl residues, C1-C12 esters, C1-C12 secondary amides, (C1-C12)(C1-C12) tertiary amides, C1-C12 alcohols, (C1-C12)( C1-C12) ethers, C1-C12 alkyls, C1-C12 substituted alkyls, C2-C12 alkenyls, C2-C12 substituted alkenyls; R2 is selected from hydrogen, a halogen, C1-C12 alkyl, C1-C12 substituted alkyls, C2-C12 alkenyl, C2-C12 substituted alkenyl, C2-C12 alkynyl, and C1-C12 acyl, and C5-C12 aryl.Type: GrantFiled: May 12, 2000Date of Patent: April 2, 2002Assignees: Nereus Pharmaceuticals, Inc., University of CaliforniaInventors: Michael Palladino, Emmanuel A. Theodorakis
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Patent number: 6265131Abstract: A positive photoresist composition comprising a polymer, a photoactived agent and an dissolution inhibitor represented by the following formula (1): wherein R1 and R2 each independently is a hydroxyl group, a C1-8 hydroxyalkyl group, or a C3-8 hydroxycycloalkyl group; R3, R4 and R5 each independently is a hydrogen, a C1-8 hydroxyalkyl group, a C1-6 carboxylic acid or a C3-8 carboxylic acid ester; k is an integer of 0, 1, 2, 3, 4, 5 or 6. The photoresist composition has high transparency to deep UV light and is capable of forming good fine patterns, roughness and high sensitivity, thus being useful as a chemically amplified type resist when exposed to deep UV light from an KrF and ArF excimer laser.Type: GrantFiled: April 3, 2000Date of Patent: July 24, 2001Assignee: Everlight USA. Inc.Inventors: Shang-Wern Chang, Yen-Cheng Li, Shang-Ho Lin, Wen-Chieh Wang
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Patent number: 6258508Abstract: The present invention relates to a polymer prepared by synthesizing monomer having a derivative of cholic acid, deoxycholic acid or lithocholic acid bonded to norbornene, and then homopolymerizing these monomer, copolymerizing these monomer with maleic anhydride, or copolymerizing these monomer, maleic anhydride and 2-hydroxyethyl 5-norbornene-2-carboxylate and/or 5-norbornene-2carboxylic acid, and its use as a photoresist. The polymer synthesized according to the present invention is dissolved in a solvent, together with a photo-acid generator, and filtered through a filter to make a photoresist solution which can be used to produce a lithographic image on a silicon wafer.Type: GrantFiled: February 25, 2000Date of Patent: July 10, 2001Assignee: Korea Advanced Institute of Science and TechnologyInventors: Jin Baek Kim, Bum Wook Lee
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Patent number: 6235447Abstract: The present invention relates to novel monomers which can be used to form photoresist polymers and photoresist compositions using the same which are suitable for photolithography processes employing a far ultraviolet light source, copolymers thereof. Preferred monomers of the invention are represented by Chemical Formula 1 below: wherein, X1 and X2 individually represent CH2, CH2CH2, oxygen or sulfur; Y represents CH2 or oxygen; R1 represents H or CH3, R′ and R″ individually represent substituted or non-substituted (C0-C3) alkyl; and i represents an integer from 0 to 3.Type: GrantFiled: October 15, 1999Date of Patent: May 22, 2001Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Geun Su Lee, Cha Won Koh, Jae Chang Jung, Min Ho Jung, Ki Ho Baik
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Patent number: 6222068Abstract: An efficient direct functionalization of nitrocubanes has been achieved by irradiation of a solution in an oxalyl halide to yield halogenated and halocarbonylated derivatives of nitrocubanes.Type: GrantFiled: April 14, 1994Date of Patent: April 24, 2001Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Abdollah Bashir-Hashemi
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Patent number: 6084125Abstract: A shell and tube heat exchanger reactor with forced circulation is used to improve heat and mass transfer for exothermic liquid--liquid, gas-liquid and gas-liquid-solid reactions. Enhanced productivity and selectivity are obtained.Type: GrantFiled: July 23, 1998Date of Patent: July 4, 2000Assignee: Praxair Technology, Inc.Inventors: Jeffrey Paul Kingsley, Mitchell Adis, Friedrich E. Purkert
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Patent number: 6051590Abstract: The compounds of Formula I are useful as immunosuppressive agents.Type: GrantFiled: May 13, 1999Date of Patent: April 18, 2000Assignee: Merck & Co., Inc.Inventors: Jianming Bao, Frank Kayser, Robert K. Baker, Shouwu Miao, William H. Parsons, Kathleen M. Rupprecht
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Patent number: 6037492Abstract: Process for the recovery of oleanolic and maslinic acids contained in the subproducts resulting from the milling and processing of olives or parts thereof, either proceeding from three-phase or two-phase presses. This process enables to obtain, by separation and with purities higher than 80%, of both acids with yields comprised between 0.2 and 1.5%, as a function of the product and prime material processed. Fundamentally, it comprises selective extractions and fractionation of resulting mixtures with the use of solvents.Type: GrantFiled: March 20, 1998Date of Patent: March 14, 2000Assignee: Universidad de GranadaInventor: Andres Garcia-Granados Lopez de Hierro
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Patent number: 6010721Abstract: A human glycyrrhetinic-acid-like factor which inhibits certain enzymes in pathways of steroid hormone degradation is disclosed.Type: GrantFiled: October 15, 1996Date of Patent: January 4, 2000Assignee: The Miriam HospitalInventors: David J. Morris, Syed Abdul Latif
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Patent number: 5955501Abstract: Compounds having anti-inflammatory and other activities are disclosed. The compounds are derived from phorboids of the diterpene- and benzolactam-classes.Type: GrantFiled: June 7, 1995Date of Patent: September 21, 1999Assignee: Procyon Pharmaceuticals, Inc.Inventors: Paul E. Driedger, James Quick
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Patent number: 5936055Abstract: Disclosed is an acid-funtionalized polyurethane adduct and a process for the preparation of such adduct. The adduct having a linear or preferably branched structure comprises a plurality of internal urethane linkages and one or more terminal carboxylic acid groups per molecule. Such acid-funtionalized polyurethane adducts find value in the manufacture of crosslinked aqueous rubber latexes such as might be used in paint compositions.Type: GrantFiled: February 19, 1997Date of Patent: August 10, 1999Assignee: The Dow Chemical CompanyInventors: Michael J. Elwell, Hanno R. van der Wal, Camiel F. Bartelink, Henri J. Grunbauer
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Patent number: 5885992Abstract: The invention is composed of a hederagenin derivative of the following formula or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising of this compound as an active ingredient. ##STR1## (wherein R.sup.1 represents OR.sup.11 or NR.sup.11 R.sup.12. R.sup.11 and R.sup.12 may be the same or different and each represents hydrogen, alkyl that may be substituted, cycloalkyl that may be substituted, alkenyl that may be substituted, alkinyl that may be substituted, aryl that may be substituted, or a heteroaromatic group that may be substituted,R.sup.2 and R.sup.3 may be the same or different and each represents hydrogen, alkyl that may be substituted, cycloalkyl that may be substituted, alkenyl that may be substituted, alkinyl that may be substituted, acyl that may be substituted, monoalkylcarbamoyl that may be substituted, dialkylcarbamoyl that may be substituted, or alkoxycarbonyl that may be substituted, or R.sup.2 and R.sup.3 taken together represents carbonyl.Type: GrantFiled: December 19, 1996Date of Patent: March 23, 1999Assignee: Nippon Shinyaku Company, LimitedInventors: Tadaaki Ohgi, Hiroto Yoshifusa, Kazuhisa Kandori
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Patent number: 5834437Abstract: The object of the present invention is to provide asiatic acid derivatives, its pharmaceutically acceptable salts or esters.Asiatic acid, its trisaccharide asiaticoside and mddecassic acid, extracted from Centella asiatica have been used for a long time in the management of skin scars and chronic ulcers. In this invention, asiatic acid derivatives synthesized from asiatic acid show excellent wound-healing properties.Type: GrantFiled: December 1, 1995Date of Patent: November 10, 1998Assignee: Dong Kook Pharmaceutical Co., Ltd.Inventors: Sang-Sup Jew, Hee-Doo Kim, Young-Hoon Jung, Eun-Hee Park, Sung-Ki Seo, Tae-Gyu Nam, Duc-Ky Hahn, Jae-Ho Park, Pil-Jong Sim, Min-Jung Lim, Kyung-Haw Lim
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Patent number: 5808133Abstract: The invention provides an alicyclic bifunctional compound represented by the formula ##STR1## wherein R is a carboxyl group, a lower alkoxycarbonyl group or a hydroxymethyl group and n is 0 or 1.Type: GrantFiled: February 7, 1997Date of Patent: September 15, 1998Assignee: Arakawa Chemical Industries Ltd.Inventors: Takaharu Tsuno, Hideki Kobayashi
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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
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Patent number: 5770763Abstract: Novel difunctionalized cyclobutabenzene monomers of the general formula: ##STR1## wherein Z can be hydrogens or a cyclobutane ring; and X and Y are carboxyl, amino, alcohol, isocyanate, acid halide, or bis-acyl halide groups. Exemplary difunctional bitricyclodecatriene monomers are ?2,2'-bidicyclo?2.4.0!octa-1,3,5-triene!-5,5'-dicarboxylic acid (BXTA) and ?2,2'-bitricyclo?6.2.0.0!deca-1,3,(6),7-triene!-7,7'-dicarboxylic acid (QXTA). The difunctionalized bitricyclodecatriene monomers can form part of a polymer backbone chain in which the multiple butane ring functionalities can be easily opened to produce strong, three-dimensional covalent bond crosslinking between polymer chains. The crosslinking can be induced simply by heating the polymer to a temperature in excess of 250.degree. C.Type: GrantFiled: August 30, 1996Date of Patent: June 23, 1998Assignee: The Board of Regents of the Univ. of MichiganInventors: David C. Martin, Jeffrey S. Moore, Larry J. Markoski, Kenneth A. Walker, Gary E. Spilman
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Patent number: 5770587Abstract: There are disclosed novel compounds having the formula ##STR1## which exhibit antifungal activity.Type: GrantFiled: October 21, 1996Date of Patent: June 23, 1998Assignee: Merck & Co., Inc.Inventors: Angela Basilio, Fernando Pelaez, Maria Teresa Diez, Francisca Vicente, Sandra A. Morris, James E. Curotto, Gerald F. Bills, Sarah J. Dreikorn, Otto D. Hensens, Jerrold M. Liesch, Rosalind G. Jenkins, John R. Thompson
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Patent number: 5731452Abstract: 7-thiaprostaglandins having the formula (I) which inhibit cell migration induced by monocyte chemoattractant protein MCP-1/MCAF and other chemokines and can serve as drugs for the treatment of atherosclerosis, diabetic angiopathy, and other disorders, their enantiomers, mixtures of the same, and methods of production thereof.Type: GrantFiled: September 18, 1995Date of Patent: March 24, 1998Assignee: Teijin LimitedInventors: Toru Minoshima, Kenichiro Kataoka, Hiroko Tanaka, Koji Ishii, Noriaki Endo
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Patent number: 5674900Abstract: Novel terpenoid-type quinones which can be obtained from Pycnanthus spp., processes for obtaining the novel terpenoid-type quinones and methods for their use as hypoglycemic agents, for example, in the treatment of diabetes are described. In a preferred embodiment, the novel terpenoid-type quinones are obtained from the leaves and stems of Pycnanthus angolensis. As agents for the treatment of diabetes, the novel terpenoid quinones are useful for treating insulin-dependent (type I) and/or non-insulin-dependent (type II) diabetes.Type: GrantFiled: August 1, 1995Date of Patent: October 7, 1997Assignee: Shaman Pharmaceuticals, Inc.Inventors: Rosa P. Ubillas, Jolad D. Shivanand, Christopher D. Mendez, Diana M. Fort, Joseph L. Evans, Jian Luo
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Patent number: 5670696Abstract: The invention provides an alicyclic bifunctional compound represented by the formula ##STR1## wherein R is a carboxyl group, a lower alkoxycarbonyl group or a hydroxymethyl group and n is 0 or 1.Type: GrantFiled: September 1, 1995Date of Patent: September 23, 1997Assignee: Arakawa Chemical Industires Ltd.Inventors: Takaharu Tsuno, Hideki Kobayashi
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Patent number: 5639894Abstract: A process for the carbonylation of allylic alcohols such as nerolidol, farnesol, or their monocyclic analogues with carbon monoxide at a pressure of at least 30 bar in the presence of a polar solvent and a palladium halide catalyst, optionally an alkali metal halide salt, and optionally an alcoholic solvent. The carbonylated product may then be reduced to the corresponding alcohol, which is cyclized in the presence of Lewis or Bronsted acids to afford an ambergris fragrance compound.Type: GrantFiled: March 23, 1994Date of Patent: June 17, 1997Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Jonathan M. Cassel, Steven M. Hoagland, James M. Renga