Patents Assigned to Celltech Therapeutics Limited
  • Patent number: 6245774
    Abstract: Compounds of general formula (1) are described: wherein ═W— is (1) ═C(Y)— where Y is a halogen atom, or an alkyl or —XRa group where X is —O—, —S(O)m— [where m is zero or an integer of value 1 or 2], or —N(Rb)— [where Rb is a hydrogen atom or an optionally substituted alkyl group] and Ra is a hydrogen atom or an optionally substituted alkyl group or, (2) ═N—; L is (1) a —C(R)═C(R1)(R2) or [—CH(R)]nCH(R1)(R2) group; is (2) a —(Xa)nAlk′Ar′, or Alk′XaAr′ group; or is (3) XaR1; Z is a group (A), (B), (C) or (D):  wherein Ar is a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms; Z1is a group —NR12C(O)— [where R12 is a hydrogen atom or an optionally substituted alkyl or (Alk)tAr group], —C(O)NR12—, —NR12
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: June 12, 2001
    Assignee: Celltech Therapeutics Limited
    Inventors: Graham John Warrellow, Ewan Campbell Boyd, Rikki Peter Alexander
  • Patent number: 6235746
    Abstract: Compounds of general formula (1) are described: wherein R1 is a hydrogen or halogen atom or an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group or a group selected from hydroxyl (—OH), substituted hydroxyl, thiol (—SH), substituted thiol, amino (—NH2), or substituted amino; R2 and R3, which may be the same or different, is each an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group; R4 is a hydrogen atom or a straight or branched chain alkyl group; R5 is a hydrogen atom or an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group; R6 is a hydrogen or halogen atom or an amino (—NH2), substituted amino, nitro, carboxyl (—CO2H) or esterified carboxyl group or a group —X1—R6a where X1 is a direct bond or a linker atom or group and R6a is an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group; X is a direct bond or a linker atom or
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: May 22, 2001
    Assignee: Celltech Therapeutics, Limited
    Inventors: Peter David Davis, David Festus Charles Moffat, Jeremy Martin Davis, Martin Clive Hutchings
  • Patent number: 6204007
    Abstract: This invention relates to whole antibodies of neutral isotype having specificity for E-selectin, process for their preparation (using vectors), pharmaceutical compositions containing them, and their use in therapy and diagnosis. Said antibodies are variants of natural antibodies altered in the Fc region, especially in the CH2 domain, so that the interactions with antibodies Fc receptors and complement are very low.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: March 20, 2001
    Assignee: Celltech Therapeutics Limited
    Inventors: Raymond John Owens, Martyn Kim Robinson
  • Patent number: 6197794
    Abstract: Phenylalanine derivatives of formula (1) are described: in which L1 is a linker atom or group; A is a chain —[C(R7)(R8)]pY[C(R9)(R10)]q— in which Y is a sulphur atom or a —S(O)— or —S(O)2— group, R7, R8, R9 and R10, which may be the same or different, is each a hydrogen atom or a straight or branched alkyl or optionally substituted aromatic group, or R7 and R8 together with the carbon atom to which they are attached, or R9 and R10 together with the carbon atom to which they are attached, each forms a C3-7cycloalkyl group, and p and q, which may be the same or different, is each zero or an integer 1 or 2, provided that when one of p or q is zero the other is an integer 1 or 2; L2 is a linker group selected from —C(O)—, —C(O)O—, —C(S)—, —S(O)2—, —CON(R11)—, [where R11 is a hydrogen atom or a straight or branched alkyl group], —CSN(R11)—, —SON(R11)&m
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: March 6, 2001
    Assignee: Celltech Therapeutics Limited
    Inventors: John Clifford Head, Sarah Catherine Archibald, Graham John Warrellow, John Robert Porter
  • Patent number: 6197792
    Abstract: Compounds of the general formula (1) wherein: ═W— is ═N—; Y is halogen or an alkyl or —XRa group; X is —O—, —S(O)m— or —N(Ra)—, where m is zero or an integer 1 or 2; Ra is hydrogen or an optionally substituted alkyl group; R2 is an optionally substituted cycloalkyl or cycloalkenyl group; R3 is R13 or —L1R13, where R13 is a halogen atom, an optionally substituted straight or branched chain C2-6alkenyl group or an optionally substituted C6-12 monocyclic or bicyclic aryl group and L1 is an optionally substituted straight or branched chain C1-6alkylene, C2-6alkenylene or C2-6alkynylene group; R4 is a hydrogen atom or a group —(CH2)nAr where Ar is an optionally substituted monocyclic aryl group and n is zero or an integer 1, 2 or 3; R5 is hydrogen; R6 is an optionally substituted 2-, 3- or 4-pyridyl group; and each of R7 and R8 is independently hydrogen or an optionally substituted straight or branched alkyl group.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: March 6, 2001
    Assignee: Celltech Therapeutics Limited
    Inventors: Rikki Peter Alexander, Graham John Warrellow
  • Patent number: 6180377
    Abstract: The invention describes humanized antibodies having specificity for the epitope recognised by the murine monoclonal antibody L243. Also described are processes for preparing said antibodies and pharmaceutical compositions and medical uses of said antibodies.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: January 30, 2001
    Assignee: Celltech Therapeutics Limited
    Inventors: Susan Adrienne Morgan, John Spencer Emtage, Mark William Bodmer, Diljeet Singh Athwal
  • Patent number: 6133257
    Abstract: Fused polycyclic 2-aminopyrimidines of formula (1) are described: whereinR.sup.1 is a group --L.sup.1 R.sup.2 where L.sup.1 is a covalent bond or a linker atom or group and R.sup.2 is a group --(Alk).sub.m L.sup.2 R.sup.3 where Alk is an optionally substituted aliphatic or heteroaliphatic chain, m is zero or the integer 1, L.sup.2 is a covalent bond or a linker atom or group and R.sup.3 is an optionally substituted cycloaliphatic or heterocycloaliphatic group provided that when m is zeroL.sup.2 is a covalent bond;Ar is an aryl or heteroaryl group;X is a carbon or nitrogen atom;Y is a carbon or nitrogen atom;Z is a linker group;A together with X and Y forms an optionally substituted monocyclic or bicyclic aromatic or heteroaromatic group;and the salts, solvates, hydrates and N-oxides thereof.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: October 17, 2000
    Assignee: Celltech Therapeutics Limited
    Inventors: Mark James Batchelor, Jeremy Martin Davis, David Festus Charles Moffat, Peter David Davis
  • Patent number: 6110945
    Abstract: Aromatic amines of formula (1) are described: ##STR1## wherein Az is an optionally substituted monocyclic six-membered nitrogen-containing aromatic group;L.sup.1 is a linker atom or group;R is a carboxylic acid or a derivative thereof;and R.sup.5 is a group --L.sup.2 (CH.sub.2).sub.t R.sup.6 in which L.sup.2 is a --N(R.sup.7)CO-- or --N(R.sup.7)CS-- group.The compounds are able to inhibit the binding of .alpha..sub.4 integrins to their ligands and are of use in the prophylaxis and treatment of immune or inflammatory disorders.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: August 29, 2000
    Assignee: Celltech Therapeutics Limited
    Inventors: John Clifford Head, Graham John Warrellow, John Robert Porter, Sarah Catherine Archibald
  • Patent number: 6096747
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: August 1, 2000
    Assignee: Celltech Therapeutics Limited
    Inventors: Nigel Robert Arnold Beeley, Thomas Andrew Millican
  • Patent number: 6093716
    Abstract: Compounds of general formula (1): ##STR1## are described wherein Het is an optionally substituted heteroaromatic group; R.sup.1 is a hydrogen atom or a straight or branched chain alkyl group; R.sup.2 is a hydrogen or halogen atom or a group --X.sup.1 --R.sup.2a where X.sup.1 is a direct bond or a linker atom or group, and R.sup.2a is an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group; R.sup.3 is an optionally substituted aromatic or heteroaromatic group; and the salts, solvates, hydrates and N-oxides thereof. The compounds are selective protein kinase inhibitors, particularly the kinases p56.sup.lck, ZAP-70 and protein kinase C and are of use in the prophylaxis and treatment of immune diseases, hyperproliferative disorders and other diseases in which inappropriate protein kinase action is believed to have a role.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: July 25, 2000
    Assignee: Celltech Therapeutics, Limited
    Inventors: Peter David Davis, David Festus Charles Moffat, Mark James Batchelor
  • Patent number: 6093696
    Abstract: Tyrosine derivatives of formula (1) are described: ##STR1## in which R is (1) a group R.sup.1 X.sup.1 -- where R.sup.1 is an optionally substituted alkyl or aromatic group, and X.sup.1 is a covalent bond or a --(CH.sub.2).sub.n -- [where n is an integer 1 or 2], --C(O)--, --CH.sub.2 C(O)--, --NHC(O)--, --CH.sub.2 NHC(O)--, or --SO.sub.2 -- group, or (2) a group (Hal.sup.1).sub.3 CSO.sub.2 --, where Hal.sup.1 is a fluorine or chlorine atom;R.sup.2 and R.sup.3, which may be the same or different, is each a hydrogen or halogen atom or an alkyl, alkoxy, hydroxyl or nitro group;Alk is an alkylene chain;m is zero or an integer 1;R.sup.4 is a hydrogen atom or a methyl group;R.sup.5 is a group --(CH.sub.2).sub.p CO.sub.2 R.sup.8 where p is zero or an integer 1 and R.sup.8 is a hydrogen atom or an alkyl group;R.sup.6 is a hydrogen atom or an alkyl group;Y is a sulphur atom or a --S(O).sub.q -- group where q is an integer 1 or 2;X.sup.2 is a --C(O)--, --C(O)O--, --CONH-- or --S(O).sub.2 -- group;R.sup.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: July 25, 2000
    Assignee: Celltech Therapeutics, Limited
    Inventors: John Clifford Head, Sarah Catherine Archibald, Graham John Warrellow
  • Patent number: 6080790
    Abstract: Compounds of formula (1) ##STR1## are described wherein Y represents a halogen atom or a group --OR.sup.1, where R.sup.1 is an optionally substituted alkyl group; R.sup.2 represents an optionally substituted cycloalkyl or cycloalkenyl group; R.sup.3 is a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen or sulphur atoms or a group --N(R.sup.4)-- where R.sup.4 is a hydrogen atom or an alkyl group; X is --O--, --S--, or --N(R.sup.5)--, where R.sup.5 is a hydrogen or an alkyl group; with the proviso that when X is --O-- then R.sup.3 is not a 3-cyanamino-6-pyridazinyl or a 3-chloro-6-pyridazinyl group; and the salts, solvates, hydrates and N-oxides thereof.The compounds are selective and potent inhibitors of phosphodiesterase IV and are useful for the prophylaxis and treatment of inflammatory diseases and the alleviation of conditions associated with central nervous malfunction.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: June 27, 2000
    Assignee: Celltech Therapeutics, Limited
    Inventors: Ewan Campbell Boyd, Michael Anthony William Eaton, Graham John Warrellow
  • Patent number: 6077854
    Abstract: Tri-substituted phenyl derivatives and processes for their preparation. In a preferred embodiment, the compounds have the general formula (1) ##STR1## wherein L may be --OR; Z may be --C(R.sup.3)(R.sup.4)--C(R.sup.5)(R.sup.6)(R.sup.7); R may be an optionally substituted cycloalkyl group; R.sup.3, R.sup.6 and R.sup.7 may be hydrogen; R.sup.4 may be --(CH.sub.2).sub.t --Ar--(L.sup.1).sub.n --Ar'; R.sup.5 may be --(CH.sub.2).sub.t Ar; Ar may be a monocyclic or bicyclic aryl or heteroaryl group; L.sup.1 may be a divalent linking group; and Ar' is Ar or an Ar containing group. Compounds of the invention may be potent and selective phosphodiesterase type IV inhibitors and are useful in the prophylaxis and treatment of various diseases, such as asthma, which are associated with an unwanted inflammatory response or muscular spasm.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: June 20, 2000
    Assignee: Celltech Therapeutics, Limited
    Inventors: Graham John Warrellow, Rikki Peter Alexander
  • Patent number: 6057329
    Abstract: Fused polycyclic 2-aminopyrimidines of formula (1): ##STR1## wherein Ar is an optionally substituted aromatic or heteroaromatic group;X is a carbon or nitrogen atom;Y is a carbon or nitrogen atom;Z is a linker group;A together with X and Y forms an optionally substituted monocyclic or bicyclic aromatic or heteroaromatic group;and the salts, solvates, hydrates and N-oxides thereof are described. The compounds are potent and selective inhibitors of the protein tyrosine kinases p56.sup.lck and p59.sup.fyn and are of use in the prophylaxis and treatment of immune diseases, hyperproliferative disorders and other diseases in which inappropriate p56.sup.lck and/or p59.sup.fyn activity is believed to have a role.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: May 2, 2000
    Assignee: Celltech Therapeutics Limited
    Inventors: Jeremy Martin Davis, Peter David Davis, David Festus Charles Moffat, Mark James Batchelor
  • Patent number: 6048866
    Abstract: Compounds of formula (1) are described: ##STR1## and the salts, solvates, hydrates and N-oxides thereof, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 have the meanings given in claim 1. The compounds are selective inhibitors of protein kinases, especially src-family protein kinases and are of use in the prophylaxis and treatment of immune diseases, hyperproliferative disorders and other diseases in which inappropriate protein kinase action is believed to have a role.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: April 11, 2000
    Assignee: Celltech Therapeutics, Limited
    Inventors: Martin Clive Hutchings, Peter David Davis, David Festus Charles Moffat
  • Patent number: 6010883
    Abstract: This invention provides a DNA sequence coding for a cleavage site which is specifically cleaved by blood coagulation Factor Xa, a vector containing such a sequence, and a host organism transformed with such a vector. Preferably, in the vector, the Factor Xa cleavage site coding sequence is fused at one end to a product and at its other end to an ATG codon or a sequence coding for at least part of a host protein.This invention also provides a process, for the production of a desired protein or peptide product in native form, comprising:transforming a host organism with a vector as described above;expressing the desired protein or peptide product as a fusion protein comprising the desired protein or peptide product fused to a Factor Xa cleavage site; anda cleaving the fusion protein with Factor Xa to yield the foreign gene product in native form.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: January 4, 2000
    Assignee: Celltech Therapeutics Limited
    Inventors: Kiyoshi Nagai, Hans Christian Th.o slashed.gersen
  • Patent number: 5998586
    Abstract: An effective anti-IL-5 recombinant antibody molecule comprising heavy and/or light chain antigen-binding residues from a donor antibody.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 7, 1999
    Assignee: Celltech Therapeutics, Limited
    Inventors: Mark William Bodmer, Diljeet Singh Athwal, John Spencer Emtage
  • Patent number: 5994510
    Abstract: Recombinant, in particular humanised, e.g. humanised chimeric and CDR-grafted humanised, antibody molecules having specificity for human TNF.alpha., are provided for use in diagnosis and therapy. In particular, the antibody molecules have antigen binding sites derived from murine monoclonal antibodies CB0006, CB0010, hTNF3 or 101.4. Preferred CDR-grafted humanised anti-hTNF.alpha. antibodies comprise variable region domains comprising human acceptor framework and donor antigen binding regions and wherein the frameworks comprise donor residues at specific positions. The antibody molecules may be used for therapeutic treatment of human patients suffering from or at risk of disorders associated with undesirably high levels of TNF, in particular for treatment of immunoregulatory and inflammatory disorders or of septic, endotoxic or cardiovascular shock.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: November 30, 1999
    Assignee: Celltech Therapeutics Limited
    Inventors: John Robert Adair, Diljeet Singh Athwal, John Spencer Emtage, Mark William Bodmer
  • Patent number: 5990293
    Abstract: A human metalloproteinase is described together with nucleic acids coding therefor and corresponding antisense DNA and RNA. The metalloproteinase may be used to generate antibodies therefor and to obtain compounds capable of regulating the action of the metalloproteinase in vivo.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: November 23, 1999
    Assignee: Celltech Therapeutics Limited
    Inventors: Andrew James Penrose Docherty, Patrick Marcel Slocombe
  • Patent number: 5962483
    Abstract: Compounds of general formula (1) ##STR1## are described wherein Y is a halogen atom or a group --OR.sup.1, where R.sup.1 is an optionally substituted alkyl group; X is --O--, --S-- or --N(R.sup.7)--, where R.sup.7 is a hydrogen atom or an alkyl group; R.sup.2 is an optionally substituted cycloalkyl or cycloalkenyl group; R.sup.3 and R.sup.4, which may be the same or different, is each a hydrogen atom or an alkyl, --CO.sub.2 R.sup.8 (where R.sup.8 is a hydrogen atom or an alkyl, aryl, or aralkyl group), --CONR.sup.9 R.sup.10 (where R.sup.9 and R.sup.10 which may be the same or different is each a hydrogen atom or an alkyl, aryl or aralkyl group), --CSNR.sup.9 R.sup.10, --CN, --CH.sub.2 CN group; Z is --(CH.sub.2).sub.n -- (where n is zero or an integer 1, 2 or 3; R.sup.5 is an optionally substituted monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms; R.sup.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: October 5, 1999
    Assignee: Celltech Therapeutics, Limited
    Inventors: Graham John Warrellow, Valerie Anne Cole, Rikki Peter Alexander