Patents Assigned to Zeneca
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Patent number: 6229057Abstract: There is provided a process for the preparation of 1,1,1-trichlorotrifluororethane in which 1,1-dichloro-2,2,2-trifluoroethane is subjected to chlorination by bringing the 1,1-dichloro-2,2,2-trifluoroethane into contact with chlorine within a reaction vessel characterised in that the process is conducted in the liquid phasein the presence of a chemical free radical initiator under a pressure of from 1 to 20 bar and at a temperature within the range 50 to 120° C., and the product is separated from the reaction mixture by fractional distillation. The product is useful in the manufacture of insecticides.Type: GrantFiled: January 11, 1996Date of Patent: May 8, 2001Assignee: Zeneca LimitedInventors: Alan Raymond Jackson, Sean James Doyle, Keith Moorhouse, Thomas Gray
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Patent number: 6225309Abstract: The invention concerns compounds of formula (I), wherein each of G1, G2 and G3 is CH or N; m is 1 or 2; R1 includes hydrogen, halogeno and 1-C)alkyl; M1 is a group of formula: NR2—L1—T1R3, in which R2 and R3 together form a (1-4C)alylene group, L1 includes (1-4C)alkylene, and T1 is CH or N; A may be a direct link; M2 is a group of the formula: (T2R4)rL2—T3R5 in which R is 0 or 1, each of T2 and T3 is CH or N, each of R4 and R5 is hydrogen or (1-4C)alkyl, or R4 and R5 together form a (1-4C)alkylene group, and L2 includes (1-4C)alkylene; M3 may be a direct link to X; X includes sulphonyl; and Q includes naphthyl and a heterocyclic moiety; or a pharmaceutically-acceptable salt thereof; processes for their preparation, pharmaceutical compositions containing them and their use as antithrombotic or anticoagulant agents.Type: GrantFiled: August 9, 1999Date of Patent: May 1, 2001Assignee: Zeneca LimitedInventors: Alan Wellington Faull, Andrew Stocker, Colette Marie Mayo, John Preston
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Patent number: 6218579Abstract: A process for preparing a compound of Formula (I); where Q completes an optionally substituted 5-or 6-member saturated carbocyclic ring and R is optionally substituted phenyl or optionally substituted C3-C6 cycloalkyl which comprises the rearrangement of a compound of Formula (II); where Q and R are as defined in relation to Formula (I) in a polar aprotic, dipolar aprotic or aromatic hydrocarbon solvent in the presence of a moderate base and an azole.Type: GrantFiled: April 18, 2000Date of Patent: April 17, 2001Assignee: Zeneca LimitedInventors: Robert Oliver Jones, Thomas William Bentley, Stephen Martin Brown
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Patent number: 6218564Abstract: A process for the preparation of a substituted aromatic compound in which a chloroaromatic compound and an alkyl-, alkenyl- or aryl-boronic acid ester or anhydride are coupled in the presence of palladium and a lipophilic aliphatic phosphine comprising at least one branched aliphatic group or a lipophilic aliphatic Dis(phosphine). Preferred phosphines include triisopropyl, triisobutyl and tricyclohexylphosphine.Type: GrantFiled: June 10, 1999Date of Patent: April 17, 2001Assignee: Zeneca LimitedInventor: Michael John Monteith
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Patent number: 6218155Abstract: The invention relates to a transgenic or mutated plant having genomic material which alters the normal starch synthesis pathway within the plant. More specifically, the present invention relates to a plant having a genotype which creates new forms of starch in significant quantity. Particularly, the invention relates to grain having an embryo with a genotype heterozygous for two or more wild type genes (for example, Aa/Bb) and an endosperm having a genotype heterozygous for such genes (for example, AAa/BBb or AAa/bbB or aaA/BBb or aaA/bbB) and the starch produced therefrom.Type: GrantFiled: December 9, 1997Date of Patent: April 17, 2001Assignee: Zeneca LimitedInventors: Ming-Tang Chang, Peter Lewis Keeling
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Patent number: 6214826Abstract: The invention relates to pyridazinoquinoline compounds of the formulas B and B′ wherein Ring A is selected from an ortho fused aromatic or heteroaromatic five- or six-membered ring and R1, R3 and R4 are substituents selected from halo, OH, OCF3, NO2, CN, NR′R″, SO2NR′R″, SOmR′alkyl, and a variety of alkyl, aryl, heterocyclic and heteroaryl groups, to pharmaceutical compositions containing them and to methods utilizing them for the treatment of neurological disorders.Type: GrantFiled: August 2, 1999Date of Patent: April 10, 2001Assignee: Zeneca LimitedInventors: Thomas Michael Bare, Marc Jerome Chapdelaine, Timothy Wayne Davenport, James Roy Empfield, Laura Enid Garcia-Davenport, Paul Francis Jackson, Jeffrey Alan McKinney, Charles David McLaren, Richard Bruce Sparks
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Patent number: 6207676Abstract: A compound of formula (I): wherein R1 represents a group of formula (A) where each of W, X, Y and Z and Z represents either a group CR or the nitrogen atom, provided that not more than two of W, X, Y and Z represent the nitrogen atom and where each R present is independently selected from hydrogen and halogen atoms and cyano, amino, hydrazino, acylamino, hydroxy, alkyl, hydroxyalkyl, alkoxy, haloalkyl, haloalkoxy, alkenyl, alkenyloxy, alkoxyalkenyl, alkynyl, carboxylic acyl, alkoxycarbonyl, aryl and heterocyclyl groups, said groups comprising up to 6 carbon atoms, and wherein R2 represents hydrogen or cyano or a group selected from alkyl, aryl, heteroaryl, aralkyl, heteroarylalkyl, alkenyl, aralkenyl, alkynyl, alkoxycarbonyl, alkanesulfonyl, arenesulfonyl, alkanyloxycarbonyl, aralkyloxycarbonyl, aryloxycarbonyl, heterocyclylalkyl, carbamyl or dithiocarboxyl groups, said groups comprising from 1 to 15 carbon atoms, said groups being optionally substituted with one or more substituents selecteType: GrantFiled: December 8, 1998Date of Patent: March 27, 2001Assignee: Zeneca LimitedInventors: Christopher John Urch, Roger Salmon, Terence Lewis, Christopher Richard Ayles Godfrey, Martin Stephen Clough
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Patent number: 6207840Abstract: 3-Isochromanone is prepared by contacting an o-xylene-&agr;,&agr;′-dihalide with carbon monoxide in a two-phase liquid medium, in which one phase is aqueous and the other phase is water-immiscible, in the presence of a catalyst and a hindered amine base.Type: GrantFiled: January 24, 2000Date of Patent: March 27, 2001Assignee: ZENECA LimitedInventors: David John Ritchie, Hannah Sallie Robertson McCann, Jennifer Ann White, Kirstin MacCormick, Raymond Vincent Heavon Jones, Robin Fieldhouse
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Patent number: 6207644Abstract: The invention concerns pharmaceutically useful peptide derivatives of the formula (I), P—R1—R2—R3—R4, in which P, R1, R2, R3, and R4 have the various meanings defined herein, and their pharmaceutically acceptable salts, and pharmaceutical compositions containing them. The novel peptide derivatives are of value in treating MHC class II dependent T-cell mediated autoimmune or inflammatory diseases, such as rheumatoid arthritis. The invention further concerns processes for the manufacture of the novel peptide derivatives and the use of the compounds in medical treatment.Type: GrantFiled: April 16, 1999Date of Patent: March 27, 2001Assignee: Zeneca LimitedInventors: Richard William Arthur Luke, Ronald Cotton
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Patent number: 6204437Abstract: Expression of genes inserted into plants by transformation is controlled by the use of a promoter selected from Aco1, Aco2 and Aco3, the sequences of which are given. The level of expression obtained by use of these promoters varies with the stage of development of the plant.Type: GrantFiled: August 14, 1997Date of Patent: March 20, 2001Assignee: Zeneca LimitedInventors: Donald Grierson, Beatrix Blume, Andrew Hamilton, Michael Holdsworth, Cornelius Barry
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Patent number: 6204223Abstract: An agrochemical composition packaged in a water soluble or water dispersible sachet is taught. The agrochemical composition is comprised of water-soluble, agrochemically active agent, water and an agent to minimize water loss through the walls of the sachet, wherein the is an ester of an alkyl, alkenyl, aryl, or arylalkyl acid; an ester or a naturally occurring oil; or a mineral or a synthetic oil; provided that the agent is not dibutylphtalate.Type: GrantFiled: June 19, 1998Date of Patent: March 20, 2001Assignee: Zeneca LimitedInventors: Peter Holmes, Richa Shaunak, Rowena Roshanthi Landham, Rupert Heinrich Sohm
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Patent number: 6200974Abstract: The present invention provides a phenanthroline derivative of formula (I) wherein, for example, R1 is hydrogen, carboxy, cyano, nitro, (1-4C)alkyl, (1-6C)alkoxycarbonyl, (1-4C)alkylamino, (2-4C)alkanoyl, (1-4C)alkoxy-(2-4C)alkoxy-(2-4C)alkoxycarbonyl or N-[amino-(2-8C)alkyl]carbamoyl; R2 is, for example, hydrogen, carboxy, (1-6C)alkoxycarbonyl, carbamoyl, N-(1-8C)alkylcarbamoyl, N,N-di-(1-8C)alkylcarbamoyl, N-(1-4C)alkylcyclohexylcarbamoyl, 1,2,3,4-tetrahydro-isoquinolin-2-ylcarbonyl or N,N-[di-(1-4C)alkyl]thiocarbamoyl; R3 and R4, which may be the same or different, are, for example, hydrogen or halo; and R5 is, for example, hydrogen, di-(1-4C)alkylamino or halo; or a pharmaceutically-acceptable salt thereof. The invention further provides pharmaceutical compositions comprising phenanthroline derivatives, processes for making the same and their use in producing an anti-fibroproliferative effect.Type: GrantFiled: May 4, 1999Date of Patent: March 13, 2001Assignee: Zeneca LimitedInventors: Philip Neil Edwards, Michael Stewart Large, Neil James Hales
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Patent number: 6200371Abstract: An ink comprising water, a water-dissipatable polymer and a dye of the Formula (1): wherein: R1 is optionally substituted alkyl or optionally substituted aryl; R2 is H, optionally substituted alkyl or optionally substituted aryl; R5 is H or optionally substituted alkyl; and R3 and R4 are each independently optionally substituted alkyl or optionally substituted aryl, or R3 and R4 together with the CH group to which they are attached from an optionally substituted 5- or 6- membered ring. Also claimed are dyes and ink jet printing processes.Type: GrantFiled: March 30, 1999Date of Patent: March 13, 2001Assignee: Zeneca LimitedInventors: Barry Huston Meyrick, Mark Holbrook, Roy Bradbury
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Patent number: 6197103Abstract: A composition of copper phthalocyanines containing, on average, from 0.1 to 3 methyl groups per phthalocyanine nucleus. The composition is suitable for the coloration of paints and plastics materials.Type: GrantFiled: November 10, 1994Date of Patent: March 6, 2001Assignee: Zeneca LimitedInventors: Peter Kingsley Davies, John David Schofield, John Michael McCarthy
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Patent number: 6197877Abstract: A dispersant of general Formula I T—(A)n(B)p—Z (1) wherein T is hydrogen or a polymerisation terminating group; Z is an acidic or basic group or a moiety containing either an acidic or basic group; A and B are each, independently, oxyalkylene carbonyl groups derivable from &dgr;-valerolactone, &egr;-caprolactone or alkyl substituted &egr;-caprolactone provided that both are not &egr;-caprolactone or &dgr;-valerolactone; n and p are integers; and n+p is from 2 to 100; including salts thereof. Specific examples of dispersants are the reaction product of lauric acid, &dgr;-caprolactone, 7-methyl-&egr;-caprolactone with PEI, the reaction product of lauric acid, &egr;-caprolactone, &dgr;-valerolactone with PEI and the phosphate of the reaction product of dodecanol, &egr;-caprolactone and &dgr;-valerolactone.Type: GrantFiled: April 30, 1999Date of Patent: March 6, 2001Assignee: Zeneca LimitedInventors: Dean Thetford, John David Schofield, Patrick John Sunderland
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Patent number: 6194441Abstract: The invention concerns a compound of formula (I) wherein for example R1 is of the formula —NHC(═O)Ra wherein Ra is hydrogen, or (1-4C)alkyl; R2 and R3 are independently hydrogen or fluoro, R4 is hydrogen, (1-4C)alkyl, halo or trifluoromethyl; R5 and R6 are, for example, independently hydrogen, (1-4C)alkyl, an acetylene of the formula -≡-H or -≡-(1-4C)alkyl, or a group of formula (IA) wherein, for example, Z is hydrogen or (1-4C)alkyl; X and Y are (1-4C)alkyl, halo, cyano, phenyl or heteroaryl; provided that X, Y and Z do not define a (2-4C)alkenyl group and provided that at least one of R5 and R6 is a group of formula (IA) or an acetylene of the formula -≡-H or -≡-(1-4C)alkyl; and pharmaceutically acceptable salts thereof; processes for their preparation; pharmaceutical compositions containing them and their use as antibacterial agents.Type: GrantFiled: February 18, 2000Date of Patent: February 27, 2001Assignee: Zeneca Ltd.Inventors: David Anthony Roberts, Michael John Betts
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Patent number: 6191253Abstract: A dispersant for aqueous mill-bases obtainable by reacting a polyethylene glycol with a molar excess of a hydroxycarboxylic acid containing from 4 to 17 carbon atoms or lactone thereof and/or with a C3-4-alkylene oxide to form a polymeric diol and phosphating the diol. The preferred hydroxycarboxylic acid or lactone is &egr;-caprolactone.Type: GrantFiled: June 9, 1998Date of Patent: February 20, 2001Assignee: Zeneca LimitedInventors: John David Schofield, Dean Thetford
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Patent number: 6187804Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein: R1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl; R2 is hydrogen or C1-4alkyl; R3 is hydrogen or C1-4alkyl; R4 and R5 are the same or different and are selected from hydrogen, halo, cyano, C1-4alkyl, nitro, hydroxy, carboxy, C1-4alkoxy, C1-4alkoxycarbonyl, aminosulphonyl, C1-4alkylaminosulphonyl, di-C1-4-alkylaminosulphonyl, carbamoyl, C1-4alkylcarbamoyl, di-C1-4 alkylcarbamoyl, trifluoromethyl, sulphonic acid, amino, C1-4alkylamino, di-C 14alkylamino, C1-4alkanoylamino, C1-4alkanoyl(H-C1-4alkyl)amino, C1-4alkanesulphonamido and C1-4alkylS(O)n— wherein n is zero, one or two: with the proviso that there is no hydroxy or carboxy substituent in a position ortho to the link to —NR3—.Type: GrantFiled: October 8, 1998Date of Patent: February 13, 2001Assignee: Zeneca LimitedInventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
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Patent number: 6187084Abstract: An ink comprising water, a water-dissipatable polymer and one or more dyes of Formula (1): wherein: R1 is H or a substituent; R2 and R3 are each independently optionally substituted alkyl, aryl or aralkyl, or R2 and R3 together with the carbon atom to which they are attached form an optionally substituted ring; R4 is H or optionally substituted alkyl, aryl or aralkyl; and D is an optionally substituted arylene group. Also claimed are the dyes of Formula (1), ink jet printing processes and cartridges containing the inks.Type: GrantFiled: March 29, 1999Date of Patent: February 13, 2001Assignee: Zeneca Ltd.Inventors: Roy Bradbury, Clive Moscrop, Barry Huston Meyrick, Mark Holbrook
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Patent number: 6187904Abstract: Biocidal proteins isolated from seeds have been characterised, in particular proteins isolated from members of the Brassicaceae, Compositae and Leguminosae families including Raphanus, Brassica, Sinapis, Arabidopsis, Dahlia, Cnicus, Lathyrus and Clitoria. The proteins show a wide range of antifungal activity and some are active against Gram-positive bacteria. All share a common amino acid sequence. DNA encoding the proteins has been isolated and incorporated into vectors. Plants transformed with this DNA may be produced. The proteins find commercial application as antifungal or antibacterial agents; transformed plants will show increased disease-resistance.Type: GrantFiled: November 17, 1997Date of Patent: February 13, 2001Assignee: ZENECA LimitedInventors: Willem F. Broekaert, Bruno P. A. Cammue, Rupert W. Osborn, Sarah B. Rees, Franky R. G. Terras, Jozef Vanderleyden