Patents Assigned to Zeneca Ltd.
  • Patent number: 6787562
    Abstract: Compounds of the formula I; useful for the treatment of pain wherein A, Z, B, R1, X and D are as defined in the specification, methods of making such compounds, methods of using such compounds and pharmaceutical compositions containing such compounds.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: September 7, 2004
    Assignee: Zeneca Ltd.
    Inventors: Gloria Anne Breault, John Oldfield, Howard Tucker, Peter Warner
  • Patent number: 6737424
    Abstract: Alpha-substituted pyridazino-quinoline compounds of formula Ia useful for the treatment of strokes and neurodegenerative disorders: wherein R1 is selected from a variety of substituents including halogen, (C1-C4)alkyl and nitro; R2 is selected from cycloalkyl moieties of 5-7 carbon atoms and the groups R2′ and R2″ as defined in the specification, a dashed bond indicates a single or double bond, and R7 is selected from H and CO(C1-C3)alkyl.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: May 18, 2004
    Assignee: Zeneca Ltd.
    Inventors: Thomas Michael Bare, James Roy Empfield, Janet Marie Forst, Keith John Herzog, Richard Bruce Sparks
  • Patent number: 6521612
    Abstract: 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-C1-4alkylamino, C1-4alkanoylamino, C1-4alkanoyl(N—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: Grant
    Filed: February 13, 2001
    Date of Patent: February 18, 2003
    Assignee: Zeneca Ltd.
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
  • 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: 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: 6267956
    Abstract: An isolated and purified human protein activator of apoptosis is described. A cDNA sequence which encodes the native kinase of death is disclosed as well as the structural coding region and the amino acid residue sequence. Methods are provided which employ the sequences to identify compounds that modulate the biological and/or pharmacological activity of the activator and hence regulate apoptosis. Biologically-effective antisense molecules, as well as dominant negative mutant versions of the apoptosis activator are described which are suitable for therapeutic use. The invention is also drawn toward the study, prevention, diagnosis, and treatment of pathophysiological disorders related to apoptosis.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: July 31, 2001
    Assignee: Zeneca Ltd.
    Inventors: Bruce Charles Gomes, Garrett M. Kasof, Judith Caroline Prosser
  • Patent number: 6265560
    Abstract: A novel human signal-transduction kinase polypeptide is described which is expressed at a particularly high level in human leukocytes. A full length cDNA which encodes the novel stress-activated serine/threonine kinase polypeptide is disclosed as well as the interior structural region and the amino acid residue sequence of the native biological molecule. Methods are provided to identify compounds that modulate the biological activity of the human Ste20-like stress-activated serine/threonine signal transduction kinase.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: July 24, 2001
    Assignee: Zeneca Ltd.
    Inventors: William Craig Moore, Tyrrell Errick Norris, David Shay Silberstein
  • Publication number: 20010007740
    Abstract: A compound library comprises a plurality of different units each comprising a solid support with which is associated a single member of the compound library, each solid support has a defined chemical composition which acts as an intrinsic label capable of identifying the first reaction choice in the synthesis of the associated member of the compound library.
    Type: Application
    Filed: January 21, 1998
    Publication date: July 12, 2001
    Applicant: ZENECA LTD.
    Inventors: BRIAN GEOFFREY MAIN, RICHARD EDEN SHUTE
  • Patent number: 6258817
    Abstract: The invention concerns pharmaceutically useful compounds of the formula I, in which A1, A2, A3, A4, B1, m, Ar, W, X, Y, Z and R1 have any of the meanings defined herein, and their pharmaceutically acceptable salts, and pharmaceutical compositions containing them. The novel compounds possess endothelin receptor antagonist activity and are useful, for example, in the treatment of diseases or medical conditions in which elevated or abnormal levels of endothelin play a significant causative role. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: July 10, 2001
    Assignee: Zeneca Ltd.
    Inventors: Robert Hugh Bradbury, Roger John Butlin, Roger James
  • Patent number: 6194441
    Abstract: 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: Grant
    Filed: February 18, 2000
    Date of Patent: February 27, 2001
    Assignee: Zeneca Ltd.
    Inventors: David Anthony Roberts, Michael John Betts
  • Patent number: 6187084
    Abstract: 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: Grant
    Filed: March 29, 1999
    Date of Patent: February 13, 2001
    Assignee: Zeneca Ltd.
    Inventors: Roy Bradbury, Clive Moscrop, Barry Huston Meyrick, Mark Holbrook
  • Patent number: 5998444
    Abstract: Compounds of formula I ##STR1## wherein Q.sup.1, Q.sup.2, Q.sup.3, Q.sup.4, and Q.sup.5 have any of the meanings given in the specification, their N-oxides, and their pharmaceutically acceptable salts are nonpeptide antagonists of SP and NKA are 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: November 26, 1997
    Date of Patent: December 7, 1999
    Assignee: Zeneca Ltd.
    Inventor: Keith Russell
  • Patent number: 5977135
    Abstract: Compounds of formula I ##STR1## wherein Q.sup.1, m and M have any of the meanings given in the specification, their N-oxides, and their pharmaceutically acceptable salts are nonpeptide antagonists of neurokinin A and 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: June 2, 1998
    Date of Patent: November 2, 1999
    Assignee: Zeneca Ltd.
    Inventor: Scott Carson Miller
  • Patent number: 5686628
    Abstract: The present invention relates to particular forms of a novel 1-substituted-N-?2-methyl-1-(trifluoroacetyl)propyl!pyrrolidine-2-carboxam ide which are inhibitors of human leukocyte elastase (HLE), also known as human neutrophil elastase (HNE), making them useful whenever such inhibition is desired, such as for research tools in pharmacological, diagnostic and related studies and in the treatment of diseases in mammals in which HLE is implicated. The invention also includes pharmaceutical compositions containing such forms, processes for preparing the forms and intermediates useful in the synthesis of the forms.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: November 11, 1997
    Assignee: Zeneca Ltd.
    Inventors: Chris Allan Veale, Peter Robert Bernstein, Elwyn Peter Davies
  • Patent number: 5668137
    Abstract: The invention concerns pharmaceutically useful compounds of the formula I, in which R.sup.1, R.sup.2, R.sup.3, n, m and Het have any of the meanings defined herein, and their pharmaceutically-acceptable salts, and pharmaceutical compositions containing them. The novel compounds possess endothelin receptor antagonist activity and are useful, for example, in the treatment of diseases or medical conditions in which elevated or abnormal levels of endothelin play a significant causative role. The invention further concerns processess for the manufacture of the novel compounds and the use of the compounds in medical treatment.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: September 16, 1997
    Assignee: Zeneca Ltd.
    Inventors: Paul John Phillips, Peter Grahame Ballard, Robert Hugh Bradbury, Roger James
  • Patent number: 5632990
    Abstract: A treatment for tumors to which antibody A5B7 binds is disclosed. A5B7 is a monoclonal antibody which binds to carcinoembryonic antigen. The treatment comprises administering to a host in need of such treatment an effective amount of a system which comprises: a conjugate comprising antibody A5B7 or a humanized version of A5B7 linked to an enzyme selected from the group consisting of carboxypeptidase G2 (CPG2), nitroreductase, a human enzyme, a non-human enzyme rendered non-immunogenic in man and a humanized catalytic antibody; and a prodrug convertible under the influence of the conjugate into a cytotoxic drug.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: May 27, 1997
    Assignees: Cancer Research Campaign Tech. Ltd., Zeneca Ltd.
    Inventors: Kenneth D. Bagshawe, Gordon T. Rogers, Surinder K. Sharma
  • Patent number: 5478820
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): ##STR1## or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein:R.sup.1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl;R.sup.2 is hydrogen or C.sub.1-4 alkyl;R.sup.3 is hydrogen or C.sub.1-4 alkyl;R.sup.4 and R.sup.5 are the same or different and are selected from hydrogen, halo, cyano, C.sub.1-4 alkyl, nitro, hydroxy, carboxy, C.sub.1-4 alkoxy, C.sub.1-4 alkoxycarbonyl, aminosulphonyl, C.sub.1-4 alkylaminosulphonyl, di-C.sub.1-4 alkylaminosulphonyl, carbamoyl, C.sub.1-4 alkylcarbamoyl, di-C.sub.1-4 alkylcarbamoyl, trifluoromethyl, sulphonic acid, amino, C.sub.1-4 alkylamino, di-C.sub.1-4 alkylamino, C.sub.1-4 alkanoylamino, C.sub.1-4 alkanoyl(N-C.sub.1-4 alkyl)amino, C.sub.1-4 alkanesulphonamido and C.sub.1-4 alkylS(O).sub.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 --NR.sup.2 --.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: December 26, 1995
    Assignee: Zeneca Ltd.
    Inventors: Michael J. Betts, Gareth M. Davies, Michael L. Swain
  • Patent number: 5362705
    Abstract: Herbicidal compositions contain N-phosphonomethyglycine and alkyl phenol polyoxyalkylene surfactant which contains from about 50 to about 90 weight percent of alkyl phenol polyoxyethylene carboxylic acid.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: November 8, 1994
    Assignee: Zeneca Ltd.
    Inventors: Nadim C. Moucharafieh, Kang-Chi Lin, James L. Ahle
  • Patent number: 5334614
    Abstract: The invention concerns hydroxylamine derivatives of the formula I ##STR1## wherein R.sup.4 is hydrogen, carbamoyl, (1-4C)alkyl, cyclopentyl, cyclohexyl, tetrahydrofuran-3-yl, tetrahydropyran-4-yl, piperidin-4-yl, N-(1-4C)alkylpiperidin-4-yl, (2-5C)alkanoyl, (1-4C)alkylsulphonyl, N-(1-4C)alkylcarbamoyl, N,N-di-(1-4C)alkylcarbamoyl, phenyl, phenyl-(1-4C)alkyl, di-phenyl-(1-4C)alkyl, benzoyl, phenylsulphonyl or a heteroarylmethyl group;R.sup.5 is hydrogen, (1-4C)alkyl, (3-4C)alkenyl, (3-4C)alkynyl, cyano-(1-4C)alkyl, phenyl or phenyl-(1-4C)alkyl;A.sup.4 is (1-4C)alkylene;Ar.sup.1 is phenylene, pyridinediyl or pyrimidinediyl;A.sup.1 is a direct link to X.sup.1, or A.sup.1 is (1-4C)alkylene;X.sup.1 is oxy, thio, sulphinyl or sulphonyl;Ar.sup.2 is phenylene, pyridinediyl, pyrimidinediyl, thiophenediyl, furandiyl or thiazolediyl;R.sup.1 is hydrogen, (1-4C)alkyl, (3-4C)alkenyl or (3-4C)alkynyl; andR.sup.2 and R.sup.3 together form a group of the formula -A.sup.2 -X.sup.2 -A.sup.3 -wherein each of A.sup.2 and A.sup.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: August 2, 1994
    Assignees: Zeneca Ltd., Zeneca Pharma SA
    Inventors: Philip N. Edwards, Michael S. Large