Patents Assigned to Zeneca Limited
  • Patent number: 6274632
    Abstract: The invention relates to compounds of the formula (I): CF2═CX—CH2—CH2—S(O)—R wherein X represents hydrogen, halogen or lower alkyl, and R represents a group OR1 or NR2R3 wherein R1, R2 and R3 are as defined in the description. The compounds are useful for controlling insect and like pests of agriculture.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: August 14, 2001
    Assignee: Zeneca Limited
    Inventor: Roger Salmon
  • Patent number: 6271033
    Abstract: Process for the inhibition of the production of a gene product in a plant cell which comprises generating in the cell while the gene product is being expressed mRNA from recombinant DNA coding for part only of the gene product: also constructs for use in the process, and cells and plants that carry out the process. Specifically applicable to control of fruit ripening, in particular in tomatoes.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: August 7, 2001
    Assignee: Zeneca Limited
    Inventors: Ian G. Bridges, Donald Grierson, Wolfgang W. Schuch
  • Patent number: 6271383
    Abstract: The present invention relates to antibiotic compounds and in particular to antibiotic compounds containing an oxazolidinone ring. This invention further relates to processes for their preparation, to intermediates useful in their preparation, to their use as therapeutic agents and to pharmaceutical compositions containing them.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: August 7, 2001
    Assignee: Zeneca Limited
    Inventor: Michael Barry Gravestock
  • Patent number: 6270967
    Abstract: A method for the detection of diagnostic base sequences in a sample nucleic acid comprises contacting the sample in the presence of appropriate nucleoside triphosphates and an agent for polymerization thereof with a diagnostic primer for the diagnostic base sequence, the primer having a tail sequence comprising a tag region and a detector region such that an extension product of the primer is synthesized when the corresponding base sequence is present in the sample, and any extension product of the diagnostic primer acting as a template for extension of a further primer which hybridizes to a locus at a distance from the diagnostic base sequence. The sample is contacted with a tag primer which selectively hybridizes to the complement of the tag sequence in an extension product of the further primer and is extended, and the presence or absence of the diagnostic base sequence is detected by reference to the detector region in the further primer extension product.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: August 7, 2001
    Assignee: Zeneca Limited
    Inventors: David Mark Whitcombe, Jannine Brownie, Stephen Little
  • Patent number: 6267806
    Abstract: Disclosed are compositions useful in inks suitable for ink jet printing.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: July 31, 2001
    Assignee: Zeneca Limited
    Inventors: Aidan Joseph Lavery, John Edward Presgrave
  • Patent number: 6265411
    Abstract: The invention relates to compounds of formula (I), wherein: R2 represents hydroxy, halogeno, C1-3alkyl, C1-3alkoxy, C1-3alkanoyloxy, trifluoromethyl, cyano, amino, nitro, C2-4alkanoyl, C1-4alkanoylamino, C1-4alkoxycarbonyl, C1-4alkylthio, C1-4alkylsulphinyl, C1-4alkylsulphonyl, carbamoyl, {overscore (N)}—C1-4alkylcarbamoyl, {overscore (N)},{overscore (N)}-di(C1-4alkyl)carbamoyl, aminosulphonyl, {overscore (N)}—C1-4alkylaminosulphonyl, {overscore (N)},{overscore (N)}-di(C1-4alkyl)aminosulphonyl, C1-4alkylsulphonylamino, or a group R4X1 wherein X1 represents a direct bond, C2-4alkanoyl, —CONR5R6—, —SO2NR7R8— or —SO2R9— (wherein R5 and R7, each independently represents hydrogen or C1-2alkyl and R6, R8 and R9 each independently represents C1-4alkyl and wherein R4 is linked to R6, R8 or R9) and R4 represents an optionally substituted group selected from phenyl and a 5 or 6-membered heterocyclic group; n is an integer from 0 to 4, R1 represents hydr
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: July 24, 2001
    Assignee: Zeneca Limited
    Inventors: Andrew Peter Thomas, Jean-Jacques Marcel Lohmann, Laurent Francois Andre Hennequin, Patrick Ple
  • Patent number: 6262346
    Abstract: A method of modifying ethylene biosynthesis in a plant comprises inserting into the genome of the said plant a DNA sequence such as SEQ-ID-NO-1 (encoding 1-aminocyclopropane-1-carboxylic acid synthase (ACS)) and/or sequence SEQ-ID-NO-2 (encoding an ethylene-forming enzyme (EFE)) which modifies the activity of at least one of ACS or EFE. The method may be used to modify fruit ripening characteristics, especially in bananas.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: July 17, 2001
    Assignee: Zeneca Limited
    Inventors: Colin Roger Bird, Jonathon David Fletcher
  • Patent number: 6258967
    Abstract: A process for the preparation of an aromatic organozinc compound is provided. The process comprises reacting a zinc chloride, bromide or iodide and an organometallic compound of another metal comprising an aromatic moiety, producing a reaction product comprising an organozinc compound and a halide salt of the other metal. The reaction product is then contacted with a liquid hydrocarbon, in which the organozinc compound is soluble and the halide salt of the other metal is of low solubility. The halide salt of the other metal is separated from the hydrocarbon, and the organozinc compound can be recovered from the hydrocarbon. Organozinc compounds produced by this process can be employed to generate chiral centres in suitable substrates.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: July 10, 2001
    Assignee: Zeneca Limited
    Inventors: Andrew John Blacker, Jan Michael Fielden
  • Patent number: 6258574
    Abstract: Optically active 2-substituted tetrahydropyran-4-ols or esters thereof may be prepared using esterases or hydrolases from the corresponding racemic mixtures of esters or alcohols. This provides a route to the corresponding optically active ketones. The racemic mixtures are preferably in the cis-form. such mixtures may be produced by-reacting but-3-ene-1-ol with an aldehyde in the presence of an acid.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: July 10, 2001
    Assignee: Zeneca Limited
    Inventors: Robert Antony Holt, Stuart Richard Rigby, David Waterson
  • Patent number: 6258951
    Abstract: The invention relates to quinazoline derivatives of the formula: and salts thereof; processes for their preparation and pharmaceutical compositions containing a compound of formula I or a pharmaceutically acceptable salt thereof as active ingredient. The compounds of formula I and the pharmaceutically acceptable salts thereof inhibit the effects of VEGF, a property of value in the treatment of a number of disease states including cancer and rheumatoid arthritis.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: July 10, 2001
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Jean-Jacques Marcel Lohmann, Laurent Francois Andre Hennequin, Andrew Peter Thomas
  • Patent number: 6258547
    Abstract: cDNAs encoding mammalian AMP protein kinases, corresponding polypeptides and recombinant proteins together with antibodies thereto. Their uses including the study of gene expression and the characteristics of other proteins.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: July 10, 2001
    Assignee: Zeneca Limited
    Inventors: Rajinder Kumar Beri, David Carling, Robert Anthony Forder
  • Patent number: 6254669
    Abstract: A compound of the Formula (1) and salts thereof: wherein: Ar, Ar1, J, J1, X, X1 W, W1, L and m are as defined in the description. The compounds of Formula (1) are useful as additives in inks, especially ink jet printing inks, for reducing color bleed between adjacent printed regions. Also claimed are inks containing a compound of the Formula (1), a method of ink jet printing using the inks, a substrate printed with the ink and an ink jet printer cartridge containing the ink.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: July 3, 2001
    Assignee: Zeneca Limited
    Inventors: Aidan Joseph Lavery, Prahalad Manibhai Mistry, Ronald Wynford Kenyon
  • Patent number: 6251913
    Abstract: Compounds of formula (I), wherein: n is 1 to 6; Het is a nitrogen containing ring fused to the benzene ring on two adjacent carbon atoms to form a bicyclic ring system which ring system may be optionally substituted; R1 is hydrogen, C1-8alkyl, C2-6alkenyl, C2-6alkyny, C3-8cycloalkyl, aryl, heteroaryl, heterocyclyl, arylC1-6alkyl, heteroarylC1-6alkyl, heterocyclylC1-6alkyl or C3-8cycloalkylC1-6alkyl; R2 is C1-6alkyl, C2-6alkenyl, arylC1-6alkyl, heteroarylC1-6alkyl or the side-chain of a naturally occurring amino acid; R3 is hydrogen, C1-6alkyl, C3-8cycloalkyl, C4-8cycloalkenyl, arylC1-6alkyl, heteroarylC1-6alkyl or heterocycylC1-6alkyl; R4 is hydrogen or C1-6alkyl; or R3 and R4 together with the nitrogen atom to which they are joined form a heterocyclic ring; wherein any group or ring, in R1-R4, is optionally substituted; and pharmaceutically acceptable salts and in vivo hydrolysable esters thereof, are described as inhibitors of the production of Tumor Necrosis Factor and/or one or more matr
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: June 26, 2001
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventor: Thomas Geoffrey Colerick Bird
  • Patent number: 6248903
    Abstract: The invention concerns a novel chemical process for the manufacture of methyl (2S)-2-[3R)-3-(N-[tert-butyloxycarbonyl]amino)-2-oxopyrrolidin-1-yl]propionate.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: June 19, 2001
    Assignee: Zeneca Limited
    Inventors: Richard J Brown, Craig S Harris, Chiu W Leung, Ian Patel
  • Patent number: 6248693
    Abstract: Herbicidal compositions containing tetrazolinone compounds and antidotal compounds therefor to reduce injury to various crops, particularly corn, wheat, rice and soya, from the phytotoxic effects of tetrazolinone herbicides when used alone or in combination with additional pesticidally active ingredients. Methods for reducing phytotoxicity or injury to crop plants, particularly corn and soya crops, due to tetrazolinone herbicides are also described.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: June 19, 2001
    Assignee: Zeneca Limited
    Inventors: John M. Shribbs, Derek P. Dagarin
  • Patent number: 6242615
    Abstract: Processes for preparing compounds of the formula (I) are described: P1OOC—CH(OH)—CHR1—CONH—Z wherein P1 is hydrogen or a protecting group, Z is a group —CHR2COOP2 or —CHR2CONR3R4 wherein P2 is hydrogen or a protecting group and R1-R4 are values known in the TNF-inhibitor art. The compounds of the formula (I) are useful in inhibiting TNF and one or more matrix metalloproteinase enzymes. One intermediate in a process of the invention is formula (II).
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: June 5, 2001
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Jacques Pelleter, Marie-Jeanne Pasquet, Thomas Geoffrey Colerick Bird
  • Patent number: 6239331
    Abstract: A method for enhancing the expression of a tomato phytoene synthese gene in a plant while avoiding or reducing co-suppression involves the synthesis of a DNA which is altered in nucleotide sequence (SEQ ID NO:1) and is capable of expression of a protein, ideally identical to that of a protein already expressed by a DNA already present in the plant. This method ensures that sequence similarity between the two genes is reduced enough to eliminate the phenomenon of co-suppression, allowing the over-expression of a specific phytoene synthese protein.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: May 29, 2001
    Assignee: Zeneca Limited
    Inventors: Caroline Rachel Drake, Colin Roger Bird, Wolfgang Walter Schuch
  • Patent number: 6235096
    Abstract: 1. An ink comprising water, a water-dissipatable polymer and a dye, wherein the dye carries a group of the Formula (1): wherein: R1 is optionally substituted branched chain alkyl; and R2 is H, optionally substituted alkyl or optionally substituted aryl. The inks are useful in ink jet printers.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: May 22, 2001
    Assignee: Zeneca Limited
    Inventors: Barry Huston Meyrick, Mark Holbrook, Roy Bradbury
  • Patent number: 6235757
    Abstract: Compounds of formula I wherein Q1, Q2, Q3, Q4 and Q5 have any of the meanings given in the specification, their N-oxides, and their pharmacuetically acceptable salts are nonpeptide antagonists NKA, useful for the treatment of asthma, etc. Also disclosed are pharmaceutical compositions, processes for preparing the compounds of formula I and intermediates.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: May 22, 2001
    Assignee: Zeneca Limited
    Inventors: Scott C. Miller, Robert T. Jacobs, Ashokkumar B. Shenvi
  • Patent number: 6235468
    Abstract: A method of characterizing a test sample of genomic DNA which method comprises contacting the test sample with type specific primer to prime selectively, within a telomere repeat array, internal repeat units of that type, and extending the type specific primers in the presence of appropriate nucleoside triphosphates and an agent for polymerization thereof to produce a set of amplification products extending from the internal repeat units of that type to at least the end of the telomere repeat array.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: May 22, 2001
    Assignee: Zeneca Limited
    Inventors: Duncan Martin Baird, Nicola Jane Royle, Alec John Jeffreys