Patents Examined by Garth M. Dahlen
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Patent number: 5763453Abstract: A condensed indan derivative represented by the formula (1) ##STR1## wherein the ring A is an optionally substituted benzene ring or a benzene ring which has lower alkylenedioxy group(s), the ring B is an optionally substituted benzene ring or a benzene ring which has lower alkylene dioxy group(s), and R is a group --NR.sub.1 R.sub.2, an optionally substituted nitrogen-containing heterocyclic group, a group --OR.sub.3 or a group --SR.sub.4 (wherein R.sub.1 and R.sub.2 are the same or different and each represent a hydrogen atom, a phenyl group, an optionally substituted nitrogen-containing heterocyclic group, or a lower alkyl group which may be substituted by optionally substituted amino group(s), lower alkoxy group(s), phenyl group(s), nitrogen-containing heterocyclic group(s) or hydroxyl group(s), and R.sub.3 and R.sub.Type: GrantFiled: April 3, 1997Date of Patent: June 9, 1998Assignee: Taiho Pharmaceutical Co., Ltd.Inventors: Shinji Okazaki, Tetsuji Asao, Teruhiro Utsugi, Yuji Yamada
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Patent number: 5763353Abstract: The present invention provides a hydrogenation catalyst precursor which does not bring about a problem of environmental pollution involved in copper-chromium catalysts and has a high activity, a high durability and a high selectivity as compared with those of conventional copper-iron-aluminum catalysts, a hydrogenation catalyst obtained by reducing the same, and a production process for alcohols using the above hydrogenation catalyst. The hydrogenation catalyst precursor described above comprises copper, iron and aluminum and containing as a principal component a compound oxide of copper, iron and aluminum in which an atomic ratio Cu:Fe:Al is 1:(0.02 to 0.4):(1.0 to 4.0) and which has a copper-aluminum spinel structure.Type: GrantFiled: January 27, 1997Date of Patent: June 9, 1998Assignee: Kao CorporationInventors: Yasuo Kadono, Yasuyuki Hattori, Masamitsu Horio, Fumihiko Nakamura
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Patent number: 5763719Abstract: A fullerene derivative of the formula I ##STR1## where the symbols and indices have the following meanings: F is a fullerene radical of the formula (C.sub.20+2m), where m is a number from 1 to 50R.sup.1 to R.sup.8 are identical or different and are each H, CO.sub.2 R.sup.9, CN, COR.sup.10, Cl, Br, I, F, OR.sup.11, C.sub.1 -C.sub.20 -alkyl, phenyl or H, R.sup.1 -R.sup.4 and/or R.sup.5, R.sup.7 can also be part of a cycloalipathic, cycloaromatic or cycloheteroaromatic system which in turn is substituted by C.sub.1 -C.sub.20 -alkyl, aryl, carboxyl, carbonyl, alkoxy, aryloxy, halogen, nitro, alcohol or amine, or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4 can together be ##STR2## where R.sup.15 -R.sup.18 are each H, C.sub.1 -C.sub.20 -alkyl, F, Cl, Br, I or phenyl, andAR is the radical of a fused cyclo-aromatic system, and n is from 1 to 20 and a process for its preparation.Type: GrantFiled: September 15, 1995Date of Patent: June 9, 1998Assignee: Hoechst AGInventors: Andreas Gugel, Pavel Belik, Klaus Mullen
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Patent number: 5759945Abstract: A heterogeneous catalyst suitable for use in an olefin epoxidation reaction is obtained using a titanosiloxane polymer as a source of titanium. The titanosiloxane is combined with an inorganic siliceous solid such as silica or a siliceous sol gel to form a catalyst precursor composition. Calcination yields the active titanium-containing catalyst.Type: GrantFiled: March 26, 1997Date of Patent: June 2, 1998Assignee: Arco Chemical Technology, L.P.Inventors: Kevin M. Carroll, Yuan-Zhang Han, Edrick Morales
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Patent number: 5760095Abstract: A method and system for effecting withdrawal from caffeine dependency is disclosed wherein the system comprises a regiment of dosage units having varying proportions of caffeine and an analgesic. One embodiment utilizes a first dosage unit which has a caffeine content equivalent to the daily caffeine intake of the individual. This level of caffeine is reduced while the level of analgesia is increased. The relevant proportion of caffeine is gradually decreased until the individual is no longer ingesting caffeine. In some embodiments, a placebo is administered during the final stages of method and system.Type: GrantFiled: December 1, 1995Date of Patent: June 2, 1998Inventor: Hebron B. White
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Patent number: 5756749Abstract: The invention relates to a process for the preparation of 1-hydroxy-2-pyridones of the formula I ##STR1## by reaction of a pyrone of the formula II ##STR2## with a hydroxylammonium salt in the presence of basic compounds, which comprises carrying out the reaction in the presence of a distillable, filterable or extractable acid or a salt thereof in an amount of 0.01 to 20 equivalents with respect to the pyrone of the formula II, and employing as the basic compounds an alkali metal carbonate and/or alkali metal bicarbonate in an amount of 0.8 to 5 equivalents with respect to the hydroxylammonium salt, the radicals R.sup.1 and R.sup.2 in the formulae I and II are described herein.Type: GrantFiled: November 2, 1995Date of Patent: May 26, 1998Assignee: Hoechst AktiengesellschaftInventors: Anuschirwan Peyman, Dieter Bernd Reuschling, Adolf Heinz Linkies
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Patent number: 5756534Abstract: N-heterocyclic moiety containing hydroxyethylamine compounds of the formula: ##STR1## such as 3-isoquinolinecarboxamide,N-(,1-dimethylethyl)decahydro-2-?2-hydroxy-3-??2 -methyl-3-(methysulfonyl)-1-oxopropyl!amino!-4-phenylbutyl!-, ?3S-?2?2S*,3R*(R*)!,3.alpha.,4a.beta., 8 a.beta.!!- are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease.Type: GrantFiled: May 31, 1995Date of Patent: May 26, 1998Assignee: Monsanto CompanyInventors: John J. Talley, Daniel P. Getman, Gary A. DeCrescenzo, Kathryn L. Reed, Ko-Chung Lin, John Nicholas Freskos, Michael Clare, Donald Joseph Rogier, Jr., Robert M. Heintz, Michael L. Vazquez, Richard A. Mueller
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Patent number: 5756528Abstract: The present invention comprises low molecular weight peptidyl compounds that inhibit the farnesyl-protein transferase. Furthermore, these compounds differ from the mono- or dipeptidyl analogs previously described as inhibitors of farnesyl-protein transferase in that they do not have a thiol moiety. The lack of the thiol offers unique advantages in terms of improved pharmacokinetic behavior in animals, prevention of thiol-dependent chemical reactions, such as rapid autoxidation and disulfide formation with endogenous thiols, and reduced systemic toxicity. Further contained in this invention are chemotherapeutic compositions containing these farnesyl transferase inhibitors and methods for their production.Type: GrantFiled: May 23, 1996Date of Patent: May 26, 1998Assignee: Merck & Co., Inc.Inventors: Neville J. Anthony, Jeffrey M. Bergman, Chrisopher J. Dinsmore, Robert P. Gomez, Suzanne C. MacTough, Kelly M. Solinsky, Theresa M. Williams
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Patent number: 5753679Abstract: Benzly-piperidine derivatives of formula I and their pharmaceutically acceptable salts are used in the control of psychotic disorders which are caused by damage to the dopamine system, especially schizophrenia. ##STR1## A is ##STR2## B is ##STR3## R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen, amino, nitro, halogen, lower-alkly or lower-alkoxy. R.sup.4, R.sup.5 and R.sup.6 are independently hydrogen, nitro, halogen, lower-alkyl, lower-alkoxy, cyano, trifluoromethyl, amino, lower-alkylamino or di-lower-alkylamino. R.sup.7, R.sup.2 and R.sup.9 are independently hydrogen, amino or nitro.Type: GrantFiled: April 18, 1996Date of Patent: May 19, 1998Assignee: Hoffmann-La Roche Inc.Inventor: Claus Riemer
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Patent number: 5750739Abstract: There is disclosed a process for producing a glycidyl ester of acrylic acid or methacrylic acid which comprises the steps of neutralizing acrylic acid or methacrylic acid with a carbonate or a bicarbonate of an alkali metal in an excess amount of epichlorohydrin while an oxygen-containing gas is blown into the liquid reaction system; subjecting water formed by the neutralization and epichlorohydrin to azeotropic distillation to discharge them outside the reaction system and to form an alkali metal salt of acrylic acid or methacrylic acid; adding a quaternary ammonium salt as a catalyst to the reaction system to react the alkali metal salt of the acid with the epichlorohydrin and thus synthesize the glycidyl ester of the acid; cooling the liquid reaction product while recovering part of the excess epichlorohydrin under reduced pressure; adding aqueous solution of an alkali hydroxide to the liquid reaction product to separate into aqueous layer and organic layer; adding a catalyst deactivator to the organic phaType: GrantFiled: August 7, 1996Date of Patent: May 12, 1998Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Tsuyoshi Isozaki, Masahiro Kurokawa, Akihiro Honma
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Patent number: 5750810Abstract: The present invention relates to the simultaneous manufacture of difluoromethane (F32) and 1,1,1,2-tetrafluoroethane (F134a) by pyrolysis of chlorodifluoromethane in the presence of hydrogen, working at a temperature above 500.degree. C. in the absence of any catalyst or metal surface. Depending on the operating conditions chosen, this process also makes it possible predominantly to manufacture either F134a or F32.Type: GrantFiled: July 30, 1997Date of Patent: May 12, 1998Assignee: Elf Atochem S.A.Inventors: Jean-Pierre Schirmann, Serge Hub, Andre Lantz
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Patent number: 5750741Abstract: A process for the preparation of an oxirane compound by reacting an olefinically unsaturated hydrocarbon with an organic hydroperoxide, in the presence of a catalyst comprising a titanasilsesquioxane of the general formula TiLR.sub.7 Si.sub.7 O.sub.12 and the structural formula ##STR1## wherein R is chosen from the group of cyclopentyl, cyclohexyl and cycloheptyl and L is chosen from the group of alkyl, cycloalkyl, alkylaryl, alkoxy, aryloxy, siloxy, amido and OH.Type: GrantFiled: January 15, 1997Date of Patent: May 12, 1998Assignee: Shell Oil CompanyInventors: Mark Crocker, Rudolf Henri Max Herold
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Patent number: 5750470Abstract: Provided are a pyridine derivative represented by the formula (1): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each independently represent a hydrogen atom, a C.sub.1-6 alkyl group, a C.sub.1-4 haloalkyl group, a C.sub.1-4 alkoxy group, a cyano group, a nitro group or a halogen atom,Qa represents a phenyl, pyrazolyl or pyridyl which may be substituted, Qb represents an azole, and X represents oxygen, sulfur or N-R.sup.4,R.sup.4 represents hydrogen or an alkyl group, and an agricultural chemical containing the same, particularly a herbicide.Type: GrantFiled: February 24, 1997Date of Patent: May 12, 1998Assignee: Nissan Chemical Industries, Ltd.Inventors: Katsushi Morimoto, Masatoshi Ohnari, Hiroyuki Furusawa, Takumi Terachi, Tsutomu Nawamaki, Kimihiro Ishikawa, Kunimitsu Nakahira, Chiaki Kawaguchi
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Patent number: 5744619Abstract: Titanovanadosilicalites have been found to be very selective, active catalysts in the epoxidation of olefins by peroxides. Dilute hydrogen peroxide suffices to afford high yields of the epoxide. Vanadium incorporation at levels of Si:V in the range 100-2500 effectively changes the characteristics of the titanosilicalite into which it is incorporated to give near quantitative conversion of propylene at selectivities greater than 90%.Type: GrantFiled: March 17, 1997Date of Patent: April 28, 1998Assignee: UOP LLCInventors: Laszlo T. Nemeth, Gregory J. Lewis, Richard R. Rosin
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Patent number: 5736573Abstract: Amine compound derivatives enhancing the transdermal delivery (skin penetration) of pharmacologically active substances (drugs). In order to pass through the skin more effectively, the present invention provides derivatives that are soluble or miscible, or compatible with both lipids and water. These derivatives are formed by combining a drug of the amine class (to which most drugs belong) with a lipid-soluble long-chain acid such as oleic, linoleic, stearic, myristic, or palmitic acid.Type: GrantFiled: July 31, 1996Date of Patent: April 7, 1998Inventor: Alexander Galat
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Patent number: 5733920Abstract: The invention provides novel inhibitors of cyclin-dependent kinases, in particular inhibitors of the CDK/cyclin complexes such as CDK4/cyclin D1. The novel compounds are analogs of chromones. These compounds can be used for inhibiting excessive or abnormal cell proliferation. Thus, the novel compounds are useful for treating a subject with a disorder associated with excessive cell proliferation, such as cancer.Type: GrantFiled: October 31, 1995Date of Patent: March 31, 1998Assignee: Mitotix, Inc.Inventors: Muzammil M. Mansuri, Krishna K. Murthi, Kollol Pal
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Patent number: 5733931Abstract: The present invention provides a cyclohexanediurea derivative, inclusive of its salt, represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and they each represent a straight-chain or branched alkyl group having at least 3 carbons, a cycloalkyl group, a cycloalkyl group having a bridge head, a furyl group, a furyl lower alkyl group or an aralkyl group, A.sub.1 and A.sub.2 are the same or different and they each represent a phenyl, pyridyl, quinolyl, isoquinolyl or indolyl group which may have substituents; a process for production thereof; an intermediate thereof; pharmaceutical use, a method for treatment and use thereof.Type: GrantFiled: March 8, 1996Date of Patent: March 31, 1998Assignee: Nissin Food Products Co., Ltd.Inventors: Toshihiro Yamada, Yoichi Nobuhara, Ichinari Takagi, Shiho Furumoto, Kazuhiro Kobayashi, Kiyohito Ikemoto
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Patent number: 5731331Abstract: The present invention relates to the compounds of general formula ##STR1## used as medicaments possessing therapeutic activity for the treatment of anxiety, psychosis, epilepsy, convulsion, motoricity problems, amnesia, cerebrovascular diseases or senile dementia.Type: GrantFiled: June 7, 1995Date of Patent: March 24, 1998Assignee: Laboratorios Del Dr. Esteve, S.A.Inventors: Ramon Merce-Vidal, Jordi Frigola-Constansa
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Patent number: 5731480Abstract: A process is described for coproducing vinylidene alcohol and vinylidene olefin. The process involves dimerizing one or more vinylolefins with an alkyl aluminum catalyst to form a first product mixture comprising at least vinylidene olefin and alkyl aluminum compound. The vinylidene olefin is then reacted with the alkyl aluminum compound under displacement conditions to form 1-olefin while concurrently removing the 1-olefin from the displacement reaction mixture to form a second product mixture comprising at least beta-branched alkyl aluminum compound. The second product mixture is treated with air or oxygen under mild oxidation conditions to form a third product mixture comprising at least beta-branched aluminum alkoxide. The beta-branched aluminum alkoxide is then hydrolyzed to form vinylidene alcohol. The process makes effective use of the alkyl aluminum catalyst both as a catalyst and as a reactant, and requires only a relatively small amount of reaction equipment.Type: GrantFiled: November 3, 1995Date of Patent: March 24, 1998Assignee: Albemarle CorporationInventor: Kaung-Far Lin
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Patent number: 5730845Abstract: A method of producing an organo-nitrogen compound by the direct conversion of elemental nitrogen, in which a substrate vapor of a simple organic compound, e.g. propanol is mixed with a carrier gas at least partly comprising nitrogen and the vapor mixture is passed over a catalyst, e.g. of a transition metal, and irradiated with microwave radiation to produce a simple organo-nitrogen compound.Type: GrantFiled: May 7, 1996Date of Patent: March 24, 1998Assignees: Gecalsthom Limited, Isambard Services LimitedInventors: David John Harper, Ronald Michael Henson, David John Wheeler