Patents Assigned to Zeneca
  • Publication number: 20020048797
    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.
    Type: Application
    Filed: June 1, 2001
    Publication date: April 25, 2002
    Applicant: Zeneca Limited
    Inventors: Robert Antony Holt, Stuart Richard Rigby, David Waterson
  • Patent number: 6372734
    Abstract: Crystalline 11-(4-[2-(2-hydroxyethoxy)ethyl]-1-piperazinyl)-dibenzo[b,f][1,4]thiazepine (I) may be prepared by crystallizing 11-(4-[2-(2-hydroxyethoxy)ethyl]-1-piperazinyl)-dibenzo[b,f][1,4]thiazepine from a non-aromatic solvent such as ethyl acetate, isobutyl acetate, methyl iso-butylketone or methyl tert-butyl ether, preferably in the absence of water. The crystalline material produced may be converted into a pharmaceutically acceptable salt such as a fumarate. The crystalline 11-(4-[2-(2-hydroxyethoxy)ethyl]-1-piperazinyl)-dibenzo[b,f][1,4]thiazepine may be used to treat psychoses.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: April 16, 2002
    Assignee: Zeneca Limited
    Inventor: Evan William Snape
  • Patent number: 6372888
    Abstract: Antifungal proteins which are analogues of the Rs-AFP2 protein and contain particular mutations in their amino acid sequence. The mutated proteins possess enhanced salt-tolerant antifungal activity. The proteins are useful for combating fungal diseases in agricultural, pharmaceutical or preservative applications.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: April 16, 2002
    Assignee: Zeneca Limited
    Inventors: Genoveva Wivina De Samblanx, Willem Frans Broekaert, Sarah Bronwen Rees
  • Publication number: 20020042408
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): 1
    Type: Application
    Filed: February 13, 2001
    Publication date: April 11, 2002
    Applicant: ZENECA LIMITED
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
  • Patent number: 6369224
    Abstract: A compound of formula wherein n is 0 or 1; m is 0 or 1; p is 0 or 1; X is oxygen or sulfur; Y is CH, N or NO; W is oxygen, H2 or F2; A is N or C(R2); G is N or C(R3); D is N or C(R4); with the proviso that no more than one of A, G, and D is nitrogen, but at least one of Y, A, G, and D is nitrogen or NO; R1 is hydrogen or C1 to C4 alkyl; R2, R3, and R4 are independently hydrogen, halogen, C1-C4 alkyl, C2-C4 alkenyl, C2-C4 alkynyl, aryl, heteroaryl, OH, OC1-C4 alkyl, CO2R1, —CN, —NO2, —NR5R6, —CF3, —OSO2CF3 or R2 and R3, or R3 and R4, respectively, may together form another six membered aromatic or heteroaromatic ring sharing A and G, or G and D, respectively, containing between zero and two nitrogen atoms, and substituted with one to two of the following substituents: independently hydrogen, halogen, C1-C4 alkyl, C2-C4 alkenyl, C2-C4 alkynyl, aryl, heteroaryl, OH, OC1-C4 alkyl, CO2R1, —CN, —NO2, —NR5R6, —CF3, —OSO2CF3; R5 and R6
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: April 9, 2002
    Assignee: Astra Zeneca AB
    Inventors: Eifion Phillips, Robert Mack, John Macor, Simon Semus
  • Publication number: 20020040002
    Abstract: 1 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, C2-6alkynyl, 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 heterocyclylC1-6alkyl; 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 pharmceutically acceptable salts and in vivo hydrolysable esters thereof, are described as inhibitors of the production of Tumour Necrosis Factor and/or one or more matrix metal
    Type: Application
    Filed: March 22, 2001
    Publication date: April 4, 2002
    Applicant: ZENECA LIMITED
    Inventor: Thomas Geoffrey Colerick Bird
  • Patent number: 6365603
    Abstract: Compounds of formula I useful for inhibiting the pain enhancing effects of E-type prostaglandins are disclosed wherein A is a ring system in which the —CH(R3)N(R2)B—R1 and —OR4 groups are positioned in a 1,2 relationship to one another on ring carbon atoms. B is a ring system having R1 in a 1,3 or 1,4 relationship with the —CH(R1)N(R2)— linking group. A, B, R1, R2, R3 and R4 are as defined in the specification and may be substituted. Also disclosed are pharmaceutically-acceptable salts, in vivo-hydrolysable esters and amides of compounds of formula I, pharmaceutical compositions containing such compounds, processes for preparing such compounds, and the use of such compounds as therapeutic agents.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: April 2, 2002
    Assignee: Zeneca Ltd.
    Inventor: Gloria Anne Breault
  • Patent number: 6365751
    Abstract: The invention concerns a compound of the formula (I): wherein, for example: R1 is of the formula —NHC(═O)Rb wherein Rb is, for example, (1-4C)alkyl; R2 and R3 are hydrogen or fluoro; R2 and R3 are hydrogen or fluoro; D is O; R4 and R5 are hydrogen, (1-4C)alkyl or AR-oxymethyl; AR is phenyl or phenyl(1-4C)alkyl; R6 is hydrogen; >A—B— is of the formula >C═C(Ra)—, >CHCHRa—, or >C(OH)CHRa— (> represents two single bonds) wherein Ra is hydrogen or (1-4C)alkyl; and pharmaceutically-acceptable salts thereof; processes for their preparation; pharmaceutical compositions containing them and their use as antibacterial agents.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: April 2, 2002
    Assignee: Zeneca Ltd.
    Inventor: Michael Barry Gravestock
  • Patent number: 6365602
    Abstract: A compound of formula I wherein: R is alkyl; R1 is optionally substituted phenyl 2-oxo-tetrahydro-1(2H)-pyrimidinyl, or 2-oxo-1-piperidinyl; R2 is hydrogen, alkoxy, alkanoyloxy, alkoxycarbonyl, alkanoylamino, acyl, alkyl, carbamoyl, N-alkylcarbamoyl, N,N-dialkylcarbamoyl where the alkyl groups are the same or different, hydroxy, thioacyl, thiocarbamoyl, N-alkylthiocarbamoyl, or N,N-dialkylthiocarbamoyl where the alkyl groups are the same or different. X1 and X2 are independently hydrogen or halo, provided that at least one of X1 or X2 is halo; and R3, R4, R5 and R6 are independently hydrogen, cyano, nitro, trifluoromethoxy, trifluoromethyl, or alkylsulfonyl are antagonists of at least one tachykinin receptor and are useful in the treatment of depression, anxiety, asthma, pain, inflammation, urinary incontinence and other disease conditions. Process for their preparation are described, as are compositions containing them and their use.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: April 2, 2002
    Assignee: Astra Zeneca AB
    Inventors: Peter Bernstein, Robert Dedinas, Keith Russell, Ashokkumar Shenyl
  • Patent number: 6362191
    Abstract: The invention concerns compounds of formula (I), wherein: A is a 5 membered heteroaryl ring, a bicyclic benzo system containing such a 5 membered heteroaryl ring or a bicyclic or tricyclic heteroaryl ring system with at least one bridgehead nitrogen and optionally a further 1-3 heteroatoms chosen from oxygen, sulfur and nitrogen; R1 is, for example, hydroxy, halo, amino, nitro, cyano, carboxy, thiol, C1-4alkanoyloxy, C1-4alkoxycarbonyl, dimethylaminomethyleneaminocarbonyl, C1-4alkyl, C2-4alkenyl, C2-4alkynyl, C1-4alkoxy, optionally substituted phenyl, an optionally substituted 5- or 6-membered heteroaryl ring or hydroxyC1-4alkyl; n is 0-6; R2 and R3 are independently hydrogen or fluoro; R4 is, for example, C1-4alkyl; pharmaceutically acceptable salts and in vivo hydrolysable ester thereof; processes for their preparation; pharmaceutical compositions containing them and their use as antibacterial agents.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: March 26, 2002
    Assignee: Zeneca Ltd.
    Inventor: Stuart Dennett Mills
  • Patent number: 6362336
    Abstract: The invention relates to quinazoline derivatives of the formula: [wherein: Y1 represents —O—, —S—, —CH2—, —SO—, —SO2—, —NR5CO—, —CONR6—, —SO2NR7—, —NR8SO2— or —NR9— (wherein R5, R6, R8 and R9 each independently represents hydrogen, alkyl or alkoxyalkyl); R1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, alkyl, alkoxy, alkylthio, amino or alkylamino.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: March 26, 2002
    Assignees: Zeneca Limited, Zeneca Pharma S. A.
    Inventors: Jean-Jacques Marcel Lohmann, Laurent Francois Andre Hennequin, Andrew Peter Thomas
  • Publication number: 20020035738
    Abstract: A method of protecting a plant against a pathogen is described, the method comprising inducing expression of a plant defensin gene by stimulating the jasmonate and/or ethylenc pathways. Also deseribed is a method of inducing expression of a plant defensin gene, a composition which is capable of inducing expression of a plant defensin gene and a method for screening compounds giving resistance-inducing activity. Preferably, the pathogen is a necrotrophic pathogen.
    Type: Application
    Filed: December 8, 2000
    Publication date: March 21, 2002
    Applicant: ZENECA Limited
    Inventors: Bart Pierre Helene Joseph Thomma, Franky Raymond Gerard Terras, Iris Anne Marie Armande Penninckx, John Michael Manners, Kemal Kazan, Willem Frans Broekaert
  • Publication number: 20020032208
    Abstract: The invention relates to quinazoline derivatives of the formula: 1
    Type: Application
    Filed: June 11, 2001
    Publication date: March 14, 2002
    Applicant: ZENECA LIMITED
    Inventors: Jean-Jacques Marcel Lohmann, Laurent Francois Andre Hennequin, Andrew Peter Thomas
  • Patent number: 6355695
    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: January 5, 2001
    Date of Patent: March 12, 2002
    Assignee: Zeneca Limited
    Inventors: Scott C. Miller, Robert T. Jacobs, Ashokkumar B. Shenvi
  • Patent number: 6350775
    Abstract: A compound of formula (I): wherein R1 is hydroxy or of the formula —NHC(═O)(1-4C)alkyl or —NHS(O)n(1-4C)alkyl wherein n is 0, 1 or 2; R2 and R3 are independently hydrogen or fluoro; R4 and R5 are independently hydrogen or methyl; >A—B— is of the formula >C═CH—, or >C(OH)CH2—; >X—Y— is of the formula >C=CH—, or >CHCH2—; and D is S, SO, or SO2; or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: February 26, 2002
    Assignee: Zeneca Limited
    Inventor: Michael Barry Gravestock
  • Patent number: 6342765
    Abstract: The present invention relates to compounds of formula (I), wherein Ar1 represents (A) and (B) or (C); R12 and R13 are independently hydrogen or C1-4alkyl; Ar2 is phenyl or heteroaryl; p is 0 or 1; Ar3 is phenyl, pyridinyl, pyridazinyl, pyrimidyl or pyrazynyl, the ring being substituted on ring carbon atoms by R2 and —(CH2)nR3, and wherein Ar3 is attached to Ar1C(R12)R13CH(Ar2)O— by a ring carbon atom; R2 is a group of formula (2), or R2 represents a lactone of formula (3), the group of formula (2) or (3) having L or D configuration at the chiral alpha carbon in the corresponding free amino acid; n is 0, 1 or 2; R3 is phenyl or heteroaryl; and R5-R9, m and n are as defined in the specification; or a pharmaceutically acceptable salt, prodrug or solvate thereof. Processes for their preparation, their use as therapeutic agents and pharmaceutical compositions containing them. A particular use in cancer therapy.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: January 29, 2002
    Assignees: AstraZeneca UK Limited, Zeneca-Pharma SA
    Inventor: Jean-Claude Arnould
  • Patent number: 6342630
    Abstract: A process for the purification of a compound of general formula I: wherein: R1 is hydrogen or C1-C6 alkyl, C2-C6 alkenyl or C2-C6 alkynyl (any of which may optionally be substituted with one or more substituents selected from halogen and OH) or COOR4, COR6, CONR4R5 or CONHSO2R4; R4 and R5 are each independently hydrogen or C1-C4 alkyl optionally substituted with one or more halogen atoms; R6 is a halogen atom or a group R4; R2 is hydrogen or halo; R3 is C1-C4 alkyl, C2-C4 alkenyl or C2-C4 alkynyl, any of which may optionally be substituted with one or more halogen atoms, or halo; or, where appropriate, a salt thereof; from a mixture containing the compound of general formula I together with one or more isomers or di-nitrated analogues thereof; the process comprising dissolving the mixture in a suitable crystallisation solvent and recrystallising the product from the resulting crystallisation solution; characterised in that the crystallisation solution contains not more than 25% loadin
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: January 29, 2002
    Assignee: Zeneca Limited
    Inventors: Stephen Martin Brown, Brian David Gott, Thomas Gray, Seyed Mehdi Tavana
  • Patent number: 6339070
    Abstract: The invention provides a gene construct encoding a cell targeting moiety and a heterologous prodrug activating enzyme for use as a medicament in a mammalian host wherein the gene construct is capable of expressing the cell targeting moiety and enzyme as a conjugate within a target cell in the mammalian host and wherein the conjugate is directed to leave the cell thereafter for selective localisation at a cell surface antigen recognised by the cell targeting moiety.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: January 15, 2002
    Assignee: Zeneca Limited
    Inventors: Stephen Charles Emery, David Charles Blakey
  • Patent number: 6336721
    Abstract: A method for the coloration of a substrate comprising ink jet printing a first and second set of inks onto the substrate wherein: (a) the first set of inks consists of one or more inks each of which independently contains a colorant selected from yellow, magenta, cyan and optionally black; and (b) the second set of inks comprises one or more inks each of which independently contains a dye selected from: a yellow dye of Formula (1) or salt thereof, an orange dye of Formula (2) or salt thereof, a red dye of Formula (3) or salt thereof and a blue dye of Formula (4) or salt thereof, wherein Formulae (1) to (4) are as defined in the description. Also claimed is a set of inks, ink jet printer cartridges, an ink jet printer and substrates printed using the printing method.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: January 8, 2002
    Assignee: Zeneca Limited
    Inventors: John Reginald Provost, Peter Gregory
  • Patent number: 6337327
    Abstract: The invention relates to pharmaceutical compositions comprising an aldose reductase inhibitor and an ACE inhibitor, and their use in the treatment of diabetic complications such as diabetic neuropathy, diabetic retinopathy and diabetic nephropathy.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: January 8, 2002
    Assignee: Zeneca Limited
    Inventors: David Patrick Tuffin, Frank Carey, Mary Anne Cotter, Norman Eugene Cameron