Patents by Inventor Thomas G. C. Bird

Thomas G. C. Bird has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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: 5484805
    Abstract: The invention concerns a heterocyclene derivative of the formula I ##STR1## wherein Ar.sup.1 is optionally substituted phenyl, naphthyl or a 9- or 10-membered bicyclic heterocyclic moiety;A.sup.1 is a direct link to X.sup.1 or (1-3C)alkylene;X.sup.1 is oxy, thio, sulphinyl, sulphonyl or imino;Ar.sup.2 is optionally substituted 5-membered heterocyclene moiety;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.sub.2 --A.sup.3 -- which, together with the carbon atom to which A.sup.2 and A.sup.3 are attached, defines a ring having 5 to 7 ring atoms, wherein each of A.sup.2 and A.sup.3 is (1-3C)alkylene and X.sup.2 is oxy, thio, sulphinyl or sulphonyl;or a pharmaceutically-acceptable salt thereof.The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: January 16, 1996
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventor: Thomas G. C. Bird
  • 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: 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: 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: 5359063
    Abstract: The invention concerns a heterocyclene derivative of the formula I ##STR1## wherein Ar.sup.1 is optionally substituted phenyl, naphthyl or a 9- or 10-membered bicyclic heterocyclic moiety;A.sup.1 is a direct link to X.sup.1 or (1-3C)alkylene;X.sup.1 is oxy, thio, sulphinyl, sulphonyl or imino;Ar.sup.2 is optionally substituted 5-membered heterocyclene moiety;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, defines a ring having 5 to 7 ring atoms, wherein each of A.sup.2 and A.sup.3 is (1-3C)alkylene and X.sup.2 is oxy, thio, sulphinyl or sulphonyl;or a pharmaceutically-acceptable salt thereof.The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: October 25, 1994
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventor: Thomas G. C. Bird
  • Patent number: 5332757
    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: February 8, 1993
    Date of Patent: July 26, 1994
    Assignees: Zeneca Limited, Zeneca PHARMA S A
    Inventors: Thomas G. C. Bird, Patrick Ple
  • Patent number: 5217978
    Abstract: The invention concerns a heterocyclene derivative of the formula I ##STR1## wherein Ar.sup.1 is optionally substituted phenyl, naphthyl or a 9- or 10-membered bicyclic heterocyclic moiety;A.sup.1 is a direct link to X.sup.1 or (1-3C)alkylene;X.sup.1 is oxy, thio, sulphinyl, sulphonyl or imino;Ar.sup.2 is optionally substituted 5-membered heterocyclene moiety;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, defines a ring having 5 to 7 ring atoms, wherein each of A.sup.2 and A.sup.3 is (1-3C)alkylene and X.sup.2 is oxy, thio, sulphinyl or sulphonyl; or a pharmaceutically-acceptable salt thereof.The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: June 8, 1993
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventor: Thomas G. C. Bird
  • Patent number: 5214070
    Abstract: The invention concerns a diaryl ether cycloalkane of the formula I, or a pharmaceutically-acceptable salt thereof, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl; X.sup.1 is oxy, thio, sulphinyl or sulphonyl;Ar.sup.2 is optionally substituted phenylene, or a 6-membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 is (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; andR.sup.2 and R.sup.3 together form a (3-6C)alkylene group which defines an optionally substituted ring having 4 to 7 ring atoms.The invention also concerns processes for the manufacture of a diaryl ether cycloalkane of the formula I, or a pharmaceutically-acceptable salt thereof, and pharmaceutical compositions containing said cycloalkane. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: May 25, 1993
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventors: Thomas G. C. Bird, Philip N. Edwards
  • Patent number: 5208259
    Abstract: The invention concerns a diaryl ether heterocycle of the formula I, or a pharmaceutically-acceptable salt thereof, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl;X.sup.1 is oxy, thio, sulphinyl or sulphonyl;Ar.sup.2 is optionally substituted phenylene, or a 6-membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 is (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; 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 (1-4C)alkylene and X.sup.2 is oxy, thio, sulphinyl, sulphonyl or imino.The invention also concerns processes for the manufacture of a diaryl ether heterocycle of the formula I, or a pharmaceutically-acceptable salt thereof, and pharmaceutical compositions containing said heterocycle. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
    Type: Grant
    Filed: July 3, 1990
    Date of Patent: May 4, 1993
    Assignees: Imperial Chemical Industries, ICI Pharma
    Inventors: Thomas G. C. Bird, Philip N. Edwards
  • Patent number: 5137913
    Abstract: The invention concerns a diaryl ether cyclic ether of the formula I, or a pharmaceutically-acceptable salt thereof, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl;X.sup.1 is oxy, thio, sulphinyl or sulphonyl;Ar.sup.2 is optionally substituted phenylene, or a 6-membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 and R.sup.2 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 (1-4C) alkylene and X.sup.2 is oxy, thio, sulphinyl, sulphonyl or imino; andR.sup.3 is (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl and substituted (1-4C)alkyl.The invention also concerns processes for the manufacture of a diaryl ether cyclic ether of the formula I, or a pharmaceutically-acceptable salt thereof, and pharmaceutical compositions containing said cyclic ether. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: August 11, 1992
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventors: Thomas G. C. Bird, Philip N. Edwards
  • Patent number: 5126365
    Abstract: The invention concerns a bicyclic derivative of the formula I, or a pharmaceutically-acceptable salt thereof, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl; R.sup.1 if (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; andR.sup.2 and R.sup.3 together form a group of the formula --A.sup.1 --X--A.sup.2 ---, wherein each of A.sup.1 and A.sup.2 is (1-4C)alkylene and X is oxy, thio, sulphinyl, sulphonyl or imino.The invention also concerns processes for the manufacture of a bicyclic derivative of the formula I, or a pharmaceutically-acceptable salt thereof, and pharmaceutical compositions containing said bicyclic derivatives. The compounds of the invention are inhibitors of the enzyme 5-lipoxygenase.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: June 30, 1992
    Assignees: Imperial Chemical Industries PLC, ICI Pharma
    Inventors: Thomas G. C. Bird, John F. Kingston, David Waterson
  • Patent number: 5114933
    Abstract: Cephalosporin compounds having a 3-position substituent of the formula (I) are described:--CH.sub.2 --Y--Q (I)wherein Y is a bond or a linking group --NR.sup.4 --Y'--, --O--Y'--, 13 S--Y'-- wherein R.sup.4 is hydrogen, various optionally substituted alkyl groups, alkenyl, alkanoyl or alkanesulphonyl, and Y' is a bond or various optionally substituted alkylene groups; and Q is a benzene ring (optionally fused to a further benzene ring so forming a naphthyl group or optionally fused to a 5 or 6 membered heterocyclic aromatic group containing 1, 2 or 3 heteroatoms selected from nitrogen, oxygen and sulphur), said benzene ring being substituted by groups R.sup.1 and R.sup.2 which are ortho with respect to one another, wherein R.sup.1 is hydroxy or an in vivo hydrolyzable ester thereof and R.sup.2 is hydroxy, and in vivo hydrolyzable ester thereof, carboxy, sulpho, hydroxymethyl, methanesulphonamido or ureido; or Q is a group of the formula (II) or (III): ##STR1## wherein M is oxygen or a group NR.sup.3 wherein R.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: May 19, 1992
    Assignee: ICI Pharma
    Inventors: Alain M. Bertrandie, Thomas G. C. Bird, Frederic H. Jung
  • Patent number: 5089513
    Abstract: The invention concerns a thiazole of the formula I, ##STR1## wherein Ar.sup.1 is optionally substituted aryl of up to 10 carbon atoms;A is a direct link to X, or is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene;X is oxy, thio, sulphinyl, sulphonyl or imino;Ar.sup.2 is optionally substituted phenylene, or a 6-membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 is hydrogen, (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl;R.sup.2 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, substituted (1-4C)alkyl or (2-6C)alkanoyl;Q is optionally substituted thiazolyl;or a pharmaceutically-acceptable salt thereof.The invention also concerns processes for the manufacture of a thiazole of the formula I, or a pharmaceutically-acceptable salt thereof, and pharmaceutical compositions containing said thiazole.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: February 18, 1992
    Assignees: ICI Pharma, Imperial Chemical Industries PLC
    Inventors: Thomas G. C. Bird, Graham C. Crawley, Martin P. Edwards, Philip N. Edwards, Jean-Marc M. M. Girodeau, John F. Kingston
  • Patent number: 5017569
    Abstract: Cephalosporin compounds having a 3-position substituent of the formula (I) are described:--CH.sub.2 --Y--Q (I)wherein Y is a linking group --NR.sup.4 CO--Y'--, --NR.sup.4 SO.sub.2 --Y'--, --OCO--Y;-- or --SCO--Y'-- wherein R.sup.4 is hydrogen, various optionally substituted alkyl groups or alkenyl and Y' is a bond or various optionally substituted alkylene or alkenylene groups; and Q is a benzene ring (optionally fused to a further benzene ring so forming a naphthyl group or optionally fused to a 5 or 6 membered heterocyclic aromatic group containing 1, 2 or 3 heteroatoms selected from nitrogen, oxygen and sulphur), said benzene ring (or in the case of naphthyl either benzene ring) being substituted by groups R.sup.1 and R.sup.2 which are ortho with respect to one another, wherein R.sup.1 is hydroxy or an in vivo hydrolyzable ester thereof and R.sup.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: May 21, 1991
    Assignee: ICI Pharma
    Inventors: Alain M. Bertrandie, Thomas G. C. Bird, Frederic H. Jung, Jean-Jacques M. Lohmann
  • Patent number: 5013730
    Abstract: Cephalosporins having a 3-position substituent of the formula: ##STR1## are described, wherein R.sup.5 is hydrogen, alkenyl, alkyl or substituted alkyl, Q is a mono- or bicyclic heterocyclic ring, variously substituted, Y is variously substituted alkylene, Y' represents various linking groups, m and n are independently zero or one, and P is a benzene ring with two ortho groups, one of which is hydroxy or an in-vivo hydrolysable ester thereof and the other is hydroxy, an in vivo hydrolysable ester thereof, carboxy, sulpho, hydroxymethyl, --NHSO.sub.2 CH.sub.3 or --NHCONH.sub.2 ; or P is a particularly substituted pyridone or pyranone. The use of such compounds as antibacterial agents is described, as are processes for their preparation.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: May 7, 1991
    Assignee: ICI-PHARMA
    Inventors: Jean C. Arnould, Thomas G. C. Bird
  • Patent number: 5008258
    Abstract: Cephalosporin compounds having as a 3-substituent the group: ##STR1## wherein Y represents a bond, optionally substituted alkylene or --CH.sub.2 CH.sub.2 NHCO--, P is a benzene ring substituted by groups W and Z ortho with respect to one another wherein W is hydroxy or an in vivo hydrolyzable ester thereof, Z is hydroxy, an in vivo hydrolyzable ester thereof, carboxy, sulpho, hydroxymethyl, --NHSO.sub.2 CH.sub.3 or NHCONH.sub.2, Q is a mono- or bicyclic ring system substituted by R.sup.7 wherein R.sup.7 is hydrogen or a range of groups and ring Q is optionally further substituted; are described as antibacterial agents. Processes for their preparation and their methods of use are described.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: April 16, 1991
    Assignee: I.C.I.-Pharma
    Inventors: Thomas G. C. Bird, Frederick H. Jung