Patents Assigned to Zeneca Pharma S. A.
  • Patent number: 6897210
    Abstract: The invention relates to quinazoline derivatives of formula (I) wherein m is an integer from 1 to 2; R1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, C1-3alkyl, C1-3alkoxy, C1-3alkylthio, or —NR5R6 (wherein R5 and R6, which may be the same or different, each represents hydrogen or C1-3alkyl); R2 represents hydrogen, hydroxy, halogeno, methoxy, amino or nitro; R3 represents hydroxy, halogeno, C1-3alkyl, C1-3alkoxy, C1-3alkanoyloxy, trifluoromethyl, cyano, amino or nitro; X1 represents —O—, —CH2—, —S—, —SO—, —SO2—, —NR7CO—, —CONR8—, —SO2NR9—, —NR10SO2— or —NR11— (wherein R7, R8, R9, R10 and R11 each independently represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl); R4 represents an optionally substituted 5 or 6 membered saturated carbocyclic or heterocyclic group or a group which is alkenyl, alkynyl or optionally substituted alkyl, which alkyl group may contain a heteroatom linking group, which alkenyl, alkynyl or alkyl group may carry a terminal optionally substituted group selected
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: May 24, 2005
    Assignees: Zeneca Limited, Zeneca Pharma S. A.
    Inventors: Andrew Peter Thomas, Craig Johnstone, Edward Clayton, Elaine Sophie Elizabeth Stokes, Jean-Jacques Marcel Lohmann, Laurent Francois Andre Hennequin
  • Publication number: 20040242574
    Abstract: The invention relates to quinazoline derivatives of formula (I) wherein m is an integer from 1 to 2; R1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, C1-3alkyl, C1-3alkoxy, C1-3alkylthio, or —NR5R6 (wherein R5 and R6, which may be the same or different, each represents hydrogen or C1-3alkyl), R2 represents hydrogen, hydroxy, halogeno, methoxy, amino or nitro; R3 represents hydroxy, halogeno, C1-3alkyl, C1-3alkoxy, C1-3alkanoyloxy, trifluoromethyl, cyano, amino or nitro, X1 represents —O—, —CH2—, —S—, —SO—, —SO2—, —NR7CO—, —CONR8—, —SO2NR9—, —NR10SO2— or —NR11— (wherein R7, R8, R9, R10 and R11 each independently represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl); R4 represents an optionally substituted 5 or 6 membered saturated carbocyclic or hetrocyclic group or a group which is alkenyl, alkynyl or optionally substituted alkyl, which alkyl group may contain
    Type: Application
    Filed: November 3, 2003
    Publication date: December 2, 2004
    Applicants: ZENECA LIMITED, ZENECA PHARMA S.A.
    Inventors: Andrew Peter Thomas, Craig Johnstone, Edward Clayton, Elaine Sophie Elizabeth Stokes, Jean-Jacques Marcel Lohmann, Laurent Francois Andre Hennequin
  • Patent number: 6809097
    Abstract: Compounds of the formula (I): wherein: R2 represents hydroxy, halogeno, C1-3alkyl, C1-3alkoxy, C1-3alkanoyloxy, trifluoromethyl, cyano, amino or nitro; n is an integer from 0 to 5; Z represents —O—, —NH—, —S— or —CH2—; G1 represents phenyl or a 5-10 membered heteroaromatic cyclic or bicyclic group; Y1, Y2, Y3 and Y4 each independently represents carbon or nitrogen; R1 represents fluoro or hydrogen; m is an integer from 1 to 3; R3 represents hydrogen, hydroxy, halogeno, cyano, nitro, trifluoromethyl, C1-3alkyl, —NR4R5 (wherein R4 and R5, can each be hydrogen or C1-3alkyl), or a group R6—X1— wherein X1 represents —CH2— or a heteroatom linker group and R6 is an alkyl, alkenyl or alkynyl chain optionally substituted by for example hydroxy, amino, nitro, alkyl, cycloalkyl, alkoxyalkyl, or an optionally substituted group selected from pyridone, phenyl and a heterocyclic ring, which alkyl, alkenyl or alkynyl chain may hav
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: October 26, 2004
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Andrew Peter Thomas, Laurent Francois Andre Hennequin, Patrick Ple
  • Publication number: 20030220495
    Abstract: The present invention relates to inhibitors of ras farnesylation of Formula (1), wherein T is of Formula (1) or (2) or (3), A is aryl or heteroaryl; B is aryl or heteroaryl; X and Y represent hydrogen, or both X and Y can represent a single bond (so as to form a double bond); R1 represents a group of Formula (II) or (III), the group of Formula (II) or Formula (III) (having L or D configuration at the chiral alpha carbon in the corresponding free amino acid); R2 represents hydrogen, aryl or heteroaryl; Z represents a direct bond, methylene, ethylene, vinylene, oxy, —CH2—O— or —O—CH2—; and R3—R4, p and r 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 is in cancer therapy.
    Type: Application
    Filed: February 11, 2002
    Publication date: November 27, 2003
    Applicant: Zeneca Limited and Zeneca Pharma S.A.
    Inventors: Francis Thomas Boyle, Gareth Morse Davies, James Michael Wardleworth, Jean-Claude Arnould
  • Patent number: 6514971
    Abstract: The invention relates to the use of cinnoline derivatives of formula (I) wherein Z represents —O—, —NH—, —S— or —CH2—; m is a n integer from 1 to 5; R1 represents hydrogen, hydroxy, halogeno, nitro, cyano, trifluoromethyl, Cp1-3alkyl, C1-3alkoxy, C1-3alkylthio or NR6R7 (wherein R6 and R7, which may be the same or different, each represents hydrogen or C1-3alkyl); R2 represents hydrogen, hydroxy, auoro, chioro, methoxy, amino or nitro; R3 represents hydroxy, halogeno, C1-3alkyl, C1-3alkoxy, C1-3alkanoyloxy, trifluoromethyl, cyano, amino or nitro; R4 represents hydrogen, hydroxy, halogeno, cyano, nitro, amino, trifluoromethyl, C1-3alkyl or a group R5—X1 (wherein X1 represents —O—, —CH2—, —S—, —SO—, —SO2—, —NR8CO—, —CONR9—, —SO2NR10—, —NR11SO2— or NR12— (wherein R8, R9, R10, R11 and R12 each independently represents hydrogen, C1-
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: February 4, 2003
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Andrew Peter Thomas, Laurent Francois Andre Hennequin
  • Patent number: 6414148
    Abstract: The invention relates to quinazoline derivatives of formula (1) wherein m is an integer from 1 to 2; R1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, C1-3alkyl, C1-3alkoxy, C1-3alkylthio, or —NR5R6 (wherein R5 and R6, which may be the same or different, each represents hydrogen or C1-3alkyl); R2 represents hydrogen, hydroxy, halogeno, methoxy, amino or nitro; R3 represents hydroxy, halogeno, C1-3alkyl, C1-3alkoxy, C1-3alkanoyloxy, trifluoromethyl, cyano, amino or nitro; X1 represents —O—, —CH2—, —S—, —SO—, —SO2—, —NR7CO—, —CONR8—, —SO2NR9—, —NR10SO2— or —NR11— (wherein R7, R8, R9, R10 and R11 each independently represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl); R4 represents an optionally substituted 5 or 6 membered saturated carbocyclic or heterocyclic group or a group which is alkenyl, alkynyl or optionally substituted alkyl, which alky
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: July 2, 2002
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Andrew Peter Thomas, Craig Johnstone, Edward Clayton, Elaine Sophie Elizabeth Stokes, Jean-Jacques Marcel Lohmann, Laurent Francois Andre Hennequin
  • Patent number: 6414145
    Abstract: The present invention relates to inhibitors of ras farnesylation of Formula (I), wherein T is of Formula (1) or (2) or (3); A is aryl or heteroaryl; B is aryl or heteroaryl; X and Y represent hydrogen, or both X and Y can represent a single bond (so as to form a double bond); R1 represents a group of Formula (II) or (III), the group of Formula (II) or Formula (III) (having L or D configuration at the chiral alpha carbon in the corresponding free amino acid); R2 represents hydrogen, aryl or heteroaryl; Z represents a direct bond, methylene, ethylene, vinylene, oxy, —CH2—O— or —O—CH2—; and R3—R4, p and r 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.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: July 2, 2002
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Francis Thomas Boyle, Gareth Morse Davies, James Michael Wardleworth, Jean-Claude Arnould
  • 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
  • Patent number: 6291455
    Abstract: The invention relates to quinazoline derivatives of formula (I) (wherein: R1 represents hydrogen or methoxy; R2 represents methoxy, ethoxy, 2-methoxyethoxy, 3-methoxypropoxy, 2-ethoxyethoxy, trifluoromethoxy, 2,2,2-trifluoroethoxy, 2-hydroxyethoxy, 3-hydroxypropoxy, 2-(N,N-dimethylamino)ethoxy, 3-(N,N-dimethylamino)propoxy, 2-morpholinoethoxy, 3-morpholinopropoxy, 4-morpholinobutoxy, 2-piperidinoethoxy, 3-piperidinopropoxy, 4-piperidinobutoxy, 2-(piperazin-1-yl)ethoxy, 3-(piperazin-1-yl)propoxy, 4-(piperazin-1-yl)butoxy, 2-(4-methylpiperazin-1-yl)ethoxy, 3-(4methylpiperazin-1-yl)propoxy or 4-(4-methylpiperazin-1-yl)butoxy; the phenyl group bearing (R3)2 is selected from: 2-fluoro-5-hydroxyphenyl, 4-bromo-2-fluorophenyl, 2,4-difluorophenyl, 4-chloro-2-fluorophenyl, 2-fluoro-4-methylphenyl, 2-fluoro-4-methoxyphenyl, 4-bromo-3-hydroxyphenyl, 4-fluoro-3-hydroxyphenyl, 4-chloro-3-hydroxyphenyl, 3-hydroxy-4-methylphenyl, 3-hydroxy-4-methoxyphenyl and 4-cyano-2-fluorophenyl); and salts thereof, processes for their p
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: September 18, 2001
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Andrew Peter Thomas, Craig Johnstone, Laurent Francois Andre Hennequin
  • 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: 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: 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: 6071921
    Abstract: The invention relates to quinazoline derivatives of the formula: ##STR1## [wherein: Y.sup.1 represents --O--, --S--, --CH.sub.2 --, --SO--, --SO.sub.2 --, --NR.sup.5 CO--, --CONR.sup.6 --, --SO.sub.2 NR.sup.7 --, --NR.sup.8 SO.sub.2 -- or --NR.sup.9 -- (wherein R.sup.5, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 each independently represents hydrogen, alkyl or alkoxyalkyl);R.sup.1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, alkyl, alkoxy, alkylthio, amino or alkylamino.R.sup.2 represents hydrogen, hydroxy, halogeno, alkyl, alkoxy, trifluoromethyl, cyano, amino or nitro;m is an integer from 1 to 5;R.sup.3 represents hydroxy, halogeno, alky, alkoxy, alkanoyloxy, trifluoromethyl, cyano, amino or nitro;R.sup.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: June 6, 2000
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Jean-Jacques Marcel Lohmann, Laurent Francois Andre Hennequin, Andrew Peter Thomas
  • Patent number: 5962458
    Abstract: The invention relates to quinazoline derivatives of the formula: ##STR1## ?wherein: Y.sup.1 represents --O--, --S--, --CH.sub.2 --, --SO--, --SO.sub.2 --, --NR.sup.5 CO--, --CONR.sup.6 -, --SO.sub.2 NR.sup.7 -, --NR.sup.8 SO.sub.2 -- or --NR.sup.9 - (wherein R.sup.5, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 each independently represents hydrogen, alkyl or alkoxyalkyl);R.sup.1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, alkyl, alkoxy, alkylthio, amino or alkylamino.R.sup.2 represents hydrogen, hydroxy, halogeno, alkyl, alkoxy, trifluoromethyl, cyano, amino or nitro;m is an integer from 1 to 5;R.sup.3 represents hydroxy, halogeno, alkyl, alkoxy, alkanoyloxy, trifluoromethyl, cyano, amino or nitro;R.sup.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: October 5, 1999
    Assignees: Zeneca Limited, Zeneca Pharma S.A.,
    Inventors: Jean-Jacques Marcel Lohmann, Laurent Francois Andre Hennequin, Andrew Peter Thomas
  • Patent number: 5512594
    Abstract: The invention concerns ether derivatives of the formula IQ.sup.1 -X-Ar-Q.sup.2 Iwherein Q.sup.1 is an optionally substituted 9-, 10- or 11-membered bicyclic heterocyclic moiety containing one or two nitrogen heteroatoms and optionally containing a further heteroatom selected from nitrogen, oxygen and sulphur; X is oxy, thio, sulphinyl or sulphonyl; Ar is optionally substituted phenylene, pyridinediyl, pyrimidinediyl, thiophenediyl, furandiyl, thiazolediyl, oxazolediyl, thiadiazolediyl or oxadiazolediyl; and Q.sup.2 is selected from the groups of the formulae II and III: ##STR1## wherein R.sup.1 is hydrogen, (2-5C)alkanoyl or optionally substituted benzoyl; R.sup.2 is (1-4C)alkyl; and R.sup.3 is hydrogen or (1-4C)alkyl; or R.sup.2 and R.sup.3 are linked to form a methylene, vinylene, ethylene or trimethylene group; or a pharmaceutically-acceptable salt thereof; processes for their preparation; pharmaceutical compositions containing them and their use as 5-lipoxygenase inhibitors.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: April 30, 1996
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Thomas G. C. Bird, Graham C. Crawley, Michael S. Large, Patrick Ple
  • Patent number: 5482966
    Abstract: The invention concerns oxime derivatives of the formula I ##STR1## wherein R.sup.4 includes hydrogen, carboxy, carbamoyl, amino, cyano, trifluoromethyl, (1-4C)alkylamino, di-(1-4C)alkylamino and (1-4C)alkyl;R.sup.5 includes hydrogen, (1-4C)alkyl, (3-4C)alkenyl, (3-4C)alkynyl, (2-5C)alkanoyl, halogeno-(2-4C)alkyl and hydroxy-(2-4C)alkyl;Ar.sup.1 is phenylene or a heteroaryl diradical;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 or a heteroaryl diradical;R.sup.1 is (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 -- which together with the carbon atom to which A.sup.2 and A.sup.3 are attached define a ring having 5 or 6 ring atoms, wherein each of A.sup.2 and A.sup.3 is (1-3C)alkylene and X.sup.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: January 9, 1996
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Thomas G. C. Bird, Patrick Ple
  • Patent number: 5478843
    Abstract: The invention concerns a thiazole derivative of the formula I ##STR1## wherein Q is 2-oxo-1,2,3,4-tetrahydroquinolin-6-yl or 2-oxo-1,2-dihydroquinolin-6-yl which bears on the nitrogen atom at the 1-position a (1-4C)alkyl substituent;X.sup.1 is thio, sulphinyl or sulphonyl;Ar is thiazolediyl;R.sup.1 is (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 -- which together with the carbon atom to which A.sup.2 and A.sup.3 are attached define a ring having 5 or 6 ring atoms, wherein A.sup.2 and A.sup.3, which may be the same or different, each is (1-3C)alkylene and X.sup.2 is oxy, and which ring may bear one or two (1-4C)alkyl substituents;or a pharmaceutically-acceptable salt thereof;processes for their preparation; pharmaceutical compositions containing them and their use as 5-lipoxygenase inhibitors.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: December 26, 1995
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventor: Thomas G. C. Bird
  • Patent number: 5478842
    Abstract: The invention concerns ether derivatives of the formula IQ.sup.1 --X--Ar--Q.sup.2 IwhereinQ.sup.1 is an optionally substituted 9-, 10- or 11-membered bicyclic heterocyclic moiety containing one or two nitrogen heteroatoms and optionally containing a further heteroatom selected from nitrogen, oxygen and sulphur;X is oxy, thio, sulphinyl or sulphonyl;Ar is optionally substituted phenylene, pyridinediyl, pyrimidinediyl, thiophenediyl, furandiyl, thiazolediyl, oxazoiediyl, thiadiazoiediyl or oxadiazolediyl; andQ.sup.2 is selected from the groups of the formulae II and III: ##STR1## wherein R.sup.1 is hydrogen, (2-5C)alkanoyl or optionally substituted benzoyl;R.sup.2 is (1-4C)alkyl; andR.sup.3 is hydrogen or (1-4C)alkyl;or R.sup.2 and R.sup.3 are linked to form a methylene, vinylene, ethylene or trimethylene group;or a pharmaceutically-acceptable salt thereof;processes for their preparation; pharmaceutical compositions containing them and their use as 5-lipoxygenase inhibitors.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: December 26, 1995
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Thomas G. C. Bird, Graham C. Crawley, Michael S. Large, Patrick Ple
  • Patent number: 5457125
    Abstract: The invention concerns oxime derivatives of the formula I ##STR1## wherein R.sup.4 is hydrogen, (1-4C)alkyl, halogeno-(2-4C)alkyl, hydroxy-(2-4C)alkyl, cyano-(1-4C)alkyl, phenyl or phenyl-(1-4C)alkyl;R.sup.5 is hydrogen, (1-4C)alkyl, halogeno-(2-4C)alkyl, hydroxy-(2-4C)alkyl, cyano-(1-4C)alkyl, phenyl or phenyl-(1-4C)alkyl, or a heteroaryl moiety selected from pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, furyl, thienyl, oxazolyl and thiazolyl;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.3 is independently (1-3C)alkylene and X.sup.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: October 10, 1995
    Assignees: Zeneca Limited, Zeneca Pharma S.A.
    Inventors: Philip N. Edwards, Michael S. Large
  • Patent number: 5453439
    Abstract: The invention concerns hydroxylamine derivatives of the formula I ##STR1## wherein R.sup.4 is hydrogen, carbamoyl, (1-4C)alkyl, (2-5C)alkanoyl, N-(1-4C)alkylcarbamoyl, N,N-di-(1-4C)alkylcarbamoyl, benzoyl or phenylsulphonyl;R.sup.5 includes hydrogen, (1-4C)alkyl and (2-5C)alkanoyl;R.sup.6 is hydrogen, (1-4C)alkyl, phenyl or phenyl-(1-4C)alkyl;R.sup.7 is hydrogen or (1-4C)alkyl;Ar.sup.1 is phenylene;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, thiazolediyl, oxazolediyl, thiadiazolediyl or oxadiazolediyl;R.sup.1 is (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 -- which together with the carbon atom to which A.sup.2 and A.sup.3 are attached define a ring having 5 or 6 ring atoms, wherein each of A.sup.2 and A.sup.3 is independently (1-3C)alkylene and X.sup.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: September 26, 1995
    Assignees: Zeneca Limited, Zeneca-Pharma S.A.
    Inventor: Patrick Ple