Patents by Inventor David Winter Walker

David Winter Walker 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).

  • Publication number: 20140303177
    Abstract: The invention provides a compound for use as a protein kinase B inhibitor, the compound being a compound of the formula (I) or salts, solvates, tautomers or N-oxides thereof, wherein T is N or CR5; J1-J2 is N?C(R6), (R7)C?N, (R8)N—C(O), (R8)2C—C(O), N?N or (R7)C?C(R6); E is a monocyclic carbocyclic or heterocyclic group of 5 or 6 ring members, the heterocyclic group containing up to 3 heteroatoms selected from O, N and S; Q1 is a bond or a saturated C1-3 hydrocarbon linker group, one of the carbon atoms in the linker group being optionally be replaced by an oxygen or nitrogen atom, or an adjacent pair of carbon atoms may be replaced by CONRq or NRqCO where Rq is hydrogen or methyl, or Rq is a C1-4 alkylene chain linked to R or a carbon atom of Q1 to form a cyclic moiety; and wherein the carbon atoms of the linker group Q1 may optionally bear one or more substituents selected from fluorine and hydroxy; Q2 is a bond or a saturated hydrocarbon linker group containing from 1 to 3 carbon atoms, wherein one of the
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Applicants: ASTEX THERAPEUTICS LIMITED, THE INSTITUTE OF CANCER RESEARCH: ROYAL CANCER HOSPITAL, CANCER RESEARCH TECHNOLOGY LIMITED
    Inventors: Valerio BERDINI, Robert George BOYLE, Gordon SAXTY, David Winter WALKER, Steven John WOODHEAD, Paul Graham WYATT, Alastair DONALD, John CALDWELL, Ian COLLINS, Tatiana Faria DA FONSECA
  • Publication number: 20140271662
    Abstract: The invention provides compounds of the formula (I) having protein kinase B inhibiting activity: wherein A is a saturated hydrocarbon linker group containing from 1 to 7 carbon atoms, the linker group having a maximum chain length of 5 atoms extending between R1 and NR2R3 and a maximum chain length of 4 atoms extending between E and NR2R3, wherein one of the carbon atoms in the linker group may optionally be replaced by an oxygen or nitrogen atom; and wherein the carbon atoms of the linker group A may optionally bear one or more substituents selected from oxo, fluorine and hydroxy, provided that the hydroxy group when present is not located at a carbon atom ? with respect to the NR2R3 group and provided that the oxo group when present is located at a carbon atom ? with respect to the NR2R3 group; E is a monocyclic or bicyclic carbocyclic or heterocyclic group; R1 is an aryl or heteroaryl group; and R2, R3, R4 and R5 are as defined in the claims.
    Type: Application
    Filed: February 14, 2014
    Publication date: September 18, 2014
    Applicants: Astex Therapeutics Ltd, Cancer Research Technology Limited, The Institute of Cancer Research: Royal Cancer Hospital
    Inventors: Valerio BERDINI, Gordon SAXTY, Marinus Leendert VERDONK, Steven John WOODHEAD, Paul Graham WYATT, Robert George BOYLE, Hannah Fiona SORE, David Winter WALKER, Ian COLLINS, Robert DOWNHAM, Robin Arthur Ellis CARR
  • Patent number: 8809336
    Abstract: The invention provides a compound for use as a protein kinase B inhibitor, the compound being a compound of the formula (I) or salts, solvates, tautomers or N-oxides thereof, wherein T is N or CR5; J1-J2 is N?C(R6), (R7)C?N, (R8)N—C(O), (R8)2C—C(O), N?N or (R7)C?C(R6); E is a monocyclic carbocyclic or heterocyclic group of 5 or 6 ring members, the heterocyclic group containing up to 3 heteroatoms selected from O, N and S; Q1 is a bond or a saturated C1-3 hydrocarbon linker group, one of the carbon atoms in the linker group being optionally be replaced by an oxygen or nitrogen atom, or an adjacent pair of carbon atoms may be replaced by CONRq or NRqCO where Rq is hydrogen or methyl, or Rq is a C1-4 alkylene chain linked to R1 or a carbon atom of Q1 to form a cyclic moiety; and wherein the carbon atoms of the linker group Q1 may optionally bear one or more substituents selected from fluorine and hydroxy; Q2 is a bond or a saturated hydrocarbon linker group containing from 1 to 3 carbon atoms, wherein one of the
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: August 19, 2014
    Assignees: Astex Therapeutics Limited, The Institute of Cancer Research: Royal Cancer Hospital, Cancer Research Technology Limited
    Inventors: Valerio Berdini, Robert George Boyle, Gordon Saxty, David Winter Walker, Steven John Woodhead, Paul Graham Wyatt, Alastair Donald, John Caldwell, Ian Collins, Tatiana Faria Da Fonseca
  • Patent number: 8716287
    Abstract: A compound of the formula (I):
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: May 6, 2014
    Assignee: Sentinel Oncology Limited
    Inventors: Robert George Boyle, David Winter Walker, Richard Justin Boyce
  • Patent number: 8716473
    Abstract: The invention provides compounds of the formula (1): or salts or tautomers thereof; wherein X1 is N or N+(O?); X2 is N or CH; Q is a C1-3 alkylene group; R1 is selected from hydrogen, C1-4 hydrocarbyl and hydroxy-C2-4 hydrocarbyl; R2, R3 and R4 are the same or different and each is selected from hydrogen, fluorine, chlorine and methyl; Ar1 is an optionally substituted monocyclic 5 or 6-membered aryl or heteroaryl ring containing 0, 1 or 2 heteroatom ring members selected from O, N and S, or a naphthyl ring and Ar2 is an optionally substituted monocyclic 5 or 6-membered heteroaryl ring containing 1, 2 or 3 heteroatom ring members selected from O, N and S. The compounds of formula (1) are inhibitors of p70S6 kinase and are useful in the treatment of proliferative diseases.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: May 6, 2014
    Assignee: Sentinel Oncology Limited
    Inventors: Robert George Boyle, David Winter Walker
  • Publication number: 20140107137
    Abstract: The invention provides a compound for use as a protein kinase B inhibitor, the compound being a compound of the formula (I) or salts, solvates, tautomers or N-oxides thereof, wherein T is N or CR5; J1-J2 is N?C(R6), (R7)C?N, (R8)N—C(O), (R8)2C—C(O), N?N or (R7)C?C(R6); E is a monocyclic carbocyclic or heterocyclic group of 5 or 6 ring members, the heterocyclic group containing up to 3 heteroatoms selected from O, N and S; Q1 is a bond or a saturated C1-3 hydrocarbon linker group, one of the carbon atoms in the linker group being optionally be replaced by an oxygen or nitrogen atom, or an adjacent pair of carbon atoms may be replaced by CONRq or NRqCO where Rq is hydrogen or methyl, or Rq is a C1-4 alkylene chain linked to R1 or a carbon atom of Q1 to form a cyclic moiety; and wherein the carbon atoms of the linker group Q1 may optionally bear one or more substituents selected from fluorine and hydroxy; Q2 is a bond or a saturated hydrocarbon linker group containing from 1 to 3 carbon atoms, wherein one of the
    Type: Application
    Filed: September 4, 2013
    Publication date: April 17, 2014
    Inventors: Valerio BERDINI, Robert George BOYLE, Gordon SAXTY, David Winter WALKER, Steven John WOODHEAD, Paul Graham WYATT, Alistair DONALD, John CALDWELL, Ian COLLINS, Tatiana Faria DA FONSECA
  • Patent number: 8691806
    Abstract: The invention provides compounds of the formula (I) having protein kinase B inhibiting activity: Also provided are pharmaceutical compositions containing the compounds, methods for preparing the compounds and their use as anticancer agents.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: April 8, 2014
    Assignees: Astex Therapeutics Limited, The Institute of Cancer Research: Royal Cancer Hospital, Cancer Research Technology Limited
    Inventors: Valerio Berdini, Gordon Saxty, Marinus Leendert Verdonk, Steven John Woodhead, Paul Graham Wyatt, Robert George Boyle, Hannah Fiona Sore, David Winter Walker, Ian Collins, Robert Downham, Robin Arthur Ellis Carr
  • Patent number: 8546407
    Abstract: The invention provides a compound for use as a protein kinase B inhibitor, the compound being a compound of the formula (Ic) or salts, tautomers or N-oxides thereof.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: October 1, 2013
    Assignees: Astex Therapeutics Limited, The Institute of Cancer Research: Royal Cancer Hospital, Cancer Research Technology Limited
    Inventors: Valerio Berdini, Robert George Boyle, Gordon Saxty, David Winter Walker, Steven John Woodhead, Paul Graham Wyatt, Alastair Donald, John Caldwell, Ian Collins, Tatiana Faria Da Fonseca
  • Patent number: 8461339
    Abstract: The invention provides kinase inhibitor compounds of the formula (1): or salts, solvates, tautomers or N-oxides thereof; wherein X is O, CO, X1C(X2), C(X2)X1, X1C(X2)X1, S, SO, SO2, NRc, SO2NRc or NRcSO2; m is 0-2; n is 0-1; q is 0-2; A is C1-6 alkylene optionally interrupted by O; R1 is halogen, cyano, nitro, an optionally substituted acyclic C1-6 hydrocarbon group, optionally substituted C3-7 cycloalkyl, optionally substituted phenyl, optionally substituted five membered heteroaryl, NR2R3, Ra—Rb, O—Rb or C(O)NR2R8; R4 is fluorine, chlorine, methyl or cyano; R2 is hydrogen or optionally substituted C1-4 alkyl; R3 is Ra—Rb; or NR2R3 forms a 4 to 7 membered non-aromatic heterocyclic ring; Ra is a bond, C(X2), C(X2)X1, SO, SO2 or SO2NRc; Rb is hydrogen or an optionally substituted 3 to 7-membered carbocyclic or heterocyclic ring or an optionally substituted C1-12 acyclic hydrocarbon group; Rc is hydrogen or a C1-4 hydrocarbon group; Rd is O, CO, X1C(X2), C(X2)X1, X1C(X2)X1, S, SO, SO2, NRc, SO2NRc or NRcSO2
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: June 11, 2013
    Assignee: Sentinel Oncology Limited
    Inventors: Robert George Boyle, David Winter Walker
  • Publication number: 20130065900
    Abstract: The invention provides a compound of the formula (1): or a salt, N-oxide or tautomer thereof; wherein R1 is cyano or C1-4 alkyl; R2 is hydrogen or C1-4 alkyl; R3 is hydrogen or C1-4 alkyl; R4 and R5 are the same or different and each is selected from hydrogen, saturated C1-4 hydrocarbyl and saturated C1-4 hydrocarbyloxy; R6 and R7 are the same or different and each is selected from hydrogen, halogen, CN, C1-4 alkyl and C1-4 alkoxy wherein the C1-4 alkyl and C1-4 alkoxy are each optionally substituted with hydroxy, C1-2 alkoxy or by one or more flourine atoms; R8 is hydrogen or C1-4 alkyl; Q is an alkylene chain of 1 to 4 carbon atoms in length between the moiety Ar and the nitrogen atom N, wherein one or more of the 1 to 4 carbon atoms of the alkylene chain may optionally be substituted with one or two C1-4 alkyl groups, or wherein one carbon atom of the 1 to 4 carbon atoms of the alkylene chain may optionally be substituted with a group —CH2CH2— which together with the said one carbon atom forms a cyclop
    Type: Application
    Filed: May 12, 2011
    Publication date: March 14, 2013
    Applicant: SENTINEL ONCOLOGY LIMITED
    Inventors: Robert George Boyle, David Winter Walker, Richard Justin Boyce
  • Publication number: 20130005702
    Abstract: The invention provides compounds of the formula (I) having protein kinase B inhibiting activity: Also provided are pharmaceutical compositions containing the compounds, methods for preparing the compounds and their use as anticancer agents.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicants: Astex Therapeutics Limited, Cancer Research Technology Limited, The Institute of Cancer Research: Royal Cancer Hospital
    Inventors: Valerio BERDINI, Gordon Saxty, Marinus Leendert Verdonk, Steven John Woodhead, Paul Graham Wyatt, Robert George Boyle, Hanna Fiona Sore, David Winter Walker, Ian Collins, Robert Downham, Robin Arthur Ellis Carr
  • Patent number: 8247576
    Abstract: The invention provides compounds of the formula: (I) having protein kinase B inhibiting activity: wherein A is a saturated hydrocarbon linker group containing from 1 to 7 carbon atoms, the linker group having a maximum chain length of 5 atoms extending between R1 and NR2R3 and a maximum chain length of 4 atoms extending between E and NR2R3, wherein one of the carbon atoms in the linker group may optionally be replaced by an oxygen or nitrogen atom; and wherein the carbon atoms of the linker group A may optionally bear one or more substituents selected from oxo, fluorine and hydroxy, provided that the hydroxy group when present is not located at a carbon atom a with respect to the NR2R3 group and provided that the oxo group when present is located at a carbon atom a with respect to the NR2R3 group; E is a monocyclic or bicyclic carbocyclic or heterocyclic group; R1 is an aryl or heteroaryl group; and R2, R3, R4 and R5 are as defined in the claims.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: August 21, 2012
    Assignees: Astex Therapeutics Limited, Institute of Cancer Research: Royal Cancer Hospital, Cancer Research Technology Limited
    Inventors: Valerio Berdini, Gordon Saxty, Marinus Leendert Verdonk, Steven John Woodhead, Paul Graham Wyatt, Robert George Boyle, Hannah Fiona Sore, David Winter Walker, Ian Collins, Robert Downham, Robin Arthur Ellis Carr
  • Publication number: 20120071478
    Abstract: The invention provides compounds of the formula (1): or salts or tautomers thereof; wherein X1 is N or N+(O?); X2 is N or CH; Q is a C1-3 alkylene group; R1 is selected from hydrogen, C1-4 hydrocarbyl and hydroxy-C2-4 hydrocarbyl; R2, R3 and R4 are the same or different and each is selected from hydrogen, fluorine, chlorine and methyl; Ar1 is an optionally substituted monocyclic 5 or 6-membered aryl or heteroaryl ring containing 0, 1 or 2 heteroatom ring members selected from O, N and S, or a naphthyl ring and Ar2 is an optionally substituted monocyclic 5 or 6-membered heteroaryl ring containing 1, 2 or 3 heteroatom ring members selected from O, N and S. The compounds of formula (1) are inhibitors of p70S6 kinase and are useful in the treatment of proliferative diseases.
    Type: Application
    Filed: May 26, 2010
    Publication date: March 22, 2012
    Applicant: Sentinel Oncology Limited
    Inventors: Robert George Boyle, David Winter Walker
  • Publication number: 20110144080
    Abstract: The invention provides compounds of the formula: (I) having protein kinase B inhibiting activity: wherein A is a saturated hydrocarbon linker group containing from 1 to 7 carbon atoms, the linker group having a maximum chain length of 5 atoms extending between R1 and NR2R3 and a maximum chain length of 4 atoms extending between E and NR2R3, wherein one of the carbon atoms in the linker group may optionally be replaced by an oxygen or nitrogen atom; and wherein the carbon atoms of the linker group A may optionally bear one or more substituents selected from oxo, fluorine and hydroxy, provided that the hydroxy group when present is not located at a carbon atom a with respect to the NR2R3 group and provided that the oxo group when present is located at a carbon atom a with respect to the NR2R3 group; E is a monocyclic or bicyclic carbocyclic or heterocyclic group; R1 is an aryl or heteroaryl group; and R2, R3, R4 and R5 are as defined in the claims.
    Type: Application
    Filed: December 23, 2004
    Publication date: June 16, 2011
    Applicants: ASTEX THERAPEUTICS LIMITED, THE INSTITUTE OF CANCER RESEARCH ROYAL CANCER HOSPITAL
    Inventors: Valerio Berdini, Gordon Saxty, Marinus Leendert Verdonk, Steven John Woodhead, Paul Graham Wyatt, Robert George Boyle, Hanna Fiona Sore, David Winter Walker, Ian Collins, Robert Downham, Robin Arthur Ellis Carr
  • Publication number: 20110130394
    Abstract: The invention provides kinase inhibitor compounds of the formula (1): or salts, solvates, tautomers or N-oxides thereof; wherein X is O, CO, X1C(X2), C(X2)X1, X1C(X2)X1, S, SO, SO2, NRc, SO2NRc or NRcSO2; m is 0-2; n is 0-1; q is 0-2; A is C1-6 alkylene optionally interrupted by O; R1 is halogen, cyano, nitro, an optionally substituted acyclic C1-6 hydrocarbon group, optionally substituted C3-7 cycloalkyl, optionally substituted phenyl, optionally substituted five membered heteroaryl, NR2R3, Ra—Rb, O—Rb or C(O)NR2R8; R4 is fluorine, chlorine, methyl or cyano; R2 is hydrogen or optionally substituted C1-4 alkyl; R3 is Ra—Rb; or NR2R3 forms a 4 to 7 membered non-aromatic heterocyclic ring; Ra is a bond, C(X2), C(X2)X1, SO, SO2 or SO2NRc; Rb is hydrogen or an optionally substituted 3 to 7-membered carbocyclic or heterocyclic ring or an optionally substituted C1-12 acyclic hydrocarbon group; Rc is hydrogen or a C1-4 hydrocarbon group; Rd is O, CO, X1C(X2), C(X2)X1, X1C(X2)X1, S, SO, SO2, NRc, SO2NRc or NRcSO2
    Type: Application
    Filed: July 15, 2009
    Publication date: June 2, 2011
    Applicant: SENTINEL ONCOLOGY LIMITED
    Inventors: Robert George Boyle, David Winter Walker
  • Publication number: 20100210617
    Abstract: The invention provides a compound of the formula (II): or a salt, solvate, tautomer or N-oxide thereof; wherein n is 0 or 1; one of Y1 and Y2 is CH and the other is selected from CH, CR8 and N; q is 0, 1 or 2 provided that q is 0 or 1 when Y1 or Y2 is CR8; R1 aryl or heteroaryl group of 5 to 10 ring members; R2a and R3a each are hydrogen, C1-4 hydrocarbyl or C1-4 acyl wherein the hydrocarbyl and acyl moieties are optionally substituted by fluorine, hydroxy, amino, methylamino, dimethylamino or methoxy; or NR2aR3a forms an imidazole group or a saturated monocyclic 4-7 membered heterocyclic group optionally containing a second heteroatom ring member selected from O and N; R18 is hydrogen or methyl; R19 is hydrogen or methyl; R24 is hydrogen or R24, R2a and the intervening nitrogen atom and carbon atoms together form an azetidine, pyrrolidine or piperidine ring; R25 is hydrogen or a C1-4 alkyl group wherein the C1-4 alkyl group is optionally substituted by hydroxy or amino provided that there are at least two ca
    Type: Application
    Filed: June 21, 2006
    Publication date: August 19, 2010
    Applicant: ASTEX THERAPEUTICS LIMITED
    Inventors: Steven John Woodhead, Robert Downham, Christopher Hamlett, Steven Howard, Hannah Fiona Sore, Marinus Leendert Verdonk, David Winter Walker, Richard William Arthur Luke
  • Publication number: 20100120798
    Abstract: The invention provides compounds of the formula (I) having PKA and PKB kinase inhibiting compounds of the formula (I): GP 1 J T 2 J N 4 R N H (I) or salts, solvates, tautomers or N-oxides thereof, wherein (1) GP is a group GP1: HET 2a a Q G (HNCO)f 7 (R)x N * (GP1) (2) GP is a group GP2: 10 (R)r O 2a a QG (CH2)w N V H N * (GP2) wherein HET is a monocyclic or bicyclic heterocyclic group containing up to 4 heteroatom ring members; the ring V is a monocyclic or bicyclic heteroaryl group of 5 to 10 ring members; and J1, J2, R4, R7, R10, Q2a, Ga, x, w and f are as defined in the claims
    Type: Application
    Filed: December 20, 2007
    Publication date: May 13, 2010
    Applicants: ASTEX THERAPEUTICS LIMITED, CANCER RESEARCH TECHNOLOGY LIMITED, ASTRAZENECA AB, THE INSTITUTE OF CANCER RESEARCH
    Inventors: Steven John Woodhead, Christopher Hamlett, Marinus Leendert Verdonk, Hannah Fiona Sore, David Winter Walker, Ian Collins, Kwai Ming Cheung, John Caldwell, Tatiana Faria Da Fonseca McHardy, Richard William Arthur Luke, Zbigniew Stanley Matusiak, Gregory Richard Carr, Jeffrey James Morris
  • Publication number: 20100093748
    Abstract: The invention provides PKA and PKB kinase-inhibiting compounds of the formula (I): or salts, solvates, tautomers or N-oxides thereof, wherein E is a five membered heteroaryl ring containing 1, 2, 3 or 4 heteroatoms selected from O, N and S provided that no more than 1 heteroatom may be other than N; q and r are each is 0 or 1; provided that q+r is 1 or 2; T is N or a group CR5; J1-J2 is N?C(R6), (R7)C?N, (R8)N—C(O), (R8)2C—C(O), N?N or (R7)C?C(R6); Q3 is a bond or a saturated C1-3 hydrocarbon linker group optionally substituted by fluorine and hydroxy; G is NR2R3, CN or OH; m and n are each 0 or 1, provided that m+n is 1 or 2, and provided also that m or n are each 0 when the adjacent ring member of ring E is S or O; R1a and R1b are the same or different and each is hydrogen or a substituent R10; or R1a and R1b together with the carbon atoms or heteroatoms to which they are attached form a 5 or 6-membered aryl or heteroaryl ring, wherein the aryl or heteroaryl rings are optionally substituted by one or mo
    Type: Application
    Filed: December 21, 2007
    Publication date: April 15, 2010
    Applicants: ASTEX THERAPEUTICS LIMITED, THE INSTITUTE OF CANCER RESEARCH: ROYAL CANCER HOS, Cancer Research Technology Limited
    Inventors: Steven John Woodhead, Martyn Frederickson, Christopher Hamlett, Andrew James Woodhead, Marinus Leendert Verdonk, Hannah Fiona Sore, David Winter Walker, Peter Blurton, Ian Collins, Kwai Ming Cheung, John Caldwell, Tatiana Faria Da Fonseca McHardy, Richard William Arthur Luke, Zbigniew Stanley Matusiak, Andrew Leach, Jeffrey James Morris
  • Publication number: 20100016340
    Abstract: The invention provides compounds of the formula (I): or salts, solvates, tautomers or N-oxides thereof, wherein J1-J2 is CH?CH, N?CH, CH?N, HN—C(O) or CH2CO; T is N or CH and GP is as defined in the claims. The compounds have activity as inhibitors of PKA and PKB kinases and are useful in the treatment of cancers.
    Type: Application
    Filed: April 25, 2007
    Publication date: January 21, 2010
    Applicants: Astex Therapeutics Limited, The Institute of Cancer Research: Royal Cancer Hospital, Cancer Research Technology Limited, Astrazeneca AB
    Inventors: Steven John Woodhead, Christopher Hamlett, Hannah Fiona Sore, David Winter Walker, Marinus Leendert Verdonk, Ian Collins, John Caldwell, Kwai-Ming Cheung, Tatiana Faria Da Fonseca McHardy
  • Publication number: 20090247538
    Abstract: The invention provides a compound for use as a protein kinase B inhibitor, the compound being a compound of the formula (I) or salts, solvates, tautomers or N-oxides thereof, wherein T is N or CR5; J1-J2 is N?C(R6), (R7)C?N, (R8)N—C(O), (R8)2C—C(O), N?N or (R7)C?C(R6); E is a monocyclic carbocyclic or heterocyclic group of 5 or 6 ring members, the heterocyclic group containing up to 3 heteroatoms selected from O, N and S; Q1 is a bond or a saturated C1-3 hydrocarbon linker group, one of the carbon atoms in the linker group being optionally be replaced by an oxygen or nitrogen atom, or an adjacent pair of carbon atoms may be replaced by CONRq or NRqCO where Rq is hydrogen or methyl, or Rq is a C1-4 alkylene chain linked to R1 or a carbon atom of Q1 to form a cyclic moiety; and wherein the carbon atoms of the linker group Q1 may optionally bear one or more substituents selected from fluorine and hydroxy; Q2 is a bond or a saturated hydrocarbon linker group containing from 1 to 3 carbon atoms, wherein one of the
    Type: Application
    Filed: October 25, 2005
    Publication date: October 1, 2009
    Applicants: ASTEX THERAPEUTICS LIMITED, CANCER RESEARCH TECHNOLOGY LIMITED
    Inventors: Valerio Berdini, Robert George Boyle, Gordon Saxty, David Winter Walker, Steven John Woodhead, Paul Graham Wyatt, Alastair Donald, John Caldwell, Ian Collins, Tatiana Faria Da Fonseca