Patents by Inventor John C. Head

John C. Head 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: 7786177
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a group Ar1 L2Ar2Alk- in which: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted arylene or heteroarylene group; and Alk is a chain —CH2—CH(R)—, —CH?C(R)— or in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; X is an —O— or —S— atom or —N(R2)— group in which: Rx, Ry and Rz which may be the same or different is each a hydrogen atom or an optional substituent; or Rz is an atom or group as previously defined and Rx and Ry are joined together to form an optionally substituted spiro linked cycloaliphatic or heterocycloaliphatic group; and the salts, solvates, hydrates and N-oxides thereof.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: August 31, 2010
    Assignee: UCB Pharma S.A.
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Patent number: 7645770
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a group Ar1L2Ar2Alk- in which: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted arylene or heteroarylene group; and Alk is a chain —CH2—CH(R)—, —CH?C(R)— or in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; X is an —O— or —S— atom or —N(R2)— group in which: Rx, Ry and Rz which may be the same or different is each a hydrogen atom or an optional substituent; or Rz is an atom or group as previously defined and Rx and Ry are joined together to form an optionally substituted spiro linked cycloaliphatic or heterocycloaliphatic group; and the salts, solvates, hydrates and N-oxides thereof.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: January 12, 2010
    Assignee: UCB Pharma S.A.
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Publication number: 20090186914
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a group Ar1 L2Ar2Alk- in which: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted arylene or heteroarylene group; and Alk is a chain —CH2—CH(R)—, —CH?C(R)— or in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; X is an —O— or —S— atom or —N(R2)— group in which: Rx, Ry and Rz which may be the same or different is each a hydrogen atom or an optional substituent; or Rz is an atom or group as previously defined and Rx and Ry are joined together to form an optionally substituted spiro linked cycloaliphatic or heterocycloaliphatic group; and the salts, solvates, hydrates and N-oxides thereof.
    Type: Application
    Filed: March 31, 2009
    Publication date: July 23, 2009
    Applicant: UCB PHARMA, S.A.
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Patent number: 7531549
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a group Ar1L2Ar2Alk- in which: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted arylene or heteroarylene group; and Alk is a chain —CH2—CH(R)—, —CH?C(R)— or in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; X is an —O— or —S— atom or —N(R2)— group in which: Rx, Ry and Rz which may be the same or different is each a hydrogen atom or an optional substituent; or Rz is an atom or group as previously defined and Rx and Ry are joined together to form an optionally substituted spiro linked cycloaliphatic or heterocycloaliphatic group; and the salts, solvates, hydrates and N-oxides thereof.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: May 12, 2009
    Assignee: UCB Pharma, S.A.
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Publication number: 20090105291
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a group Ar1 L2Ar2Alk- in which: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted arylene or heteroarylene group; and Alk is a chain —CH2—CH(R)—, —CH?C(R)— or in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; X is an —O— or —S— atom or —N(R2)— group in which: Rx, Ry and Rz which may be the same or different is each a hydrogen atom or an optional substituent; or Rz is an atom or group as previously defined and Rx and Ry are joined together to form an optionally substituted spiro linked cycloaliphatic or heterocycloaliphatic group; and the salts, solvates, hydrates and N-oxides thereof.
    Type: Application
    Filed: December 3, 2008
    Publication date: April 23, 2009
    Applicant: Rigel Pharmaceuticals, Inc.
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Patent number: 7501437
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a group Ar1L2Ar2Alk—in which: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted arylene or heteroarylene group; and Alk is a chain in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; X is an —O— or —S— atom or —N(R2)— group in which: Rx, Ry and Rz which may be the same or different is each a hydrogen atom or an optional substituent; or Rz is an atom or group as previously defined and Rx and Ry are joined together to form an optionally substituted spiro linked cycloaliphatic or heterocycloaliphatic group; and the salts, solvates, hydrates and N-oxides thereof. The compounds are able to inhibit the binding of integrins to their ligands and are of use in the prophylaxis and treatment of immuno or inflammatory disorders or disorders involving the inappropriate growth or migration of cells.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: March 10, 2009
    Assignee: UCB Pharma, S.A.
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Patent number: 7122556
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a group Ar1L2Ar2Alk— in which: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted arylene or heteroarylene group; and Alk is a chain in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; X is an —O— or —S— atom or —N(R2)— group in which: Rx, Ry and Rz which may be the same or different is each a hydrogen atom or an optional substituent; or Rz is an atom or group as previously defined and Rx and Ry are joined together to form an optionally substituted spiro linked cycloaliphatic or heterocycloaliphatic group; and the salts, solvates, hydrates and N-oxides thereof. The compounds are able to inhibit the binding of integrins to their ligands and are of use in the prophylaxis and treatment of immuno or inflammatory disorders or disorders involving the inappropriate growth or migration of cells.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: October 17, 2006
    Assignee: Celltech R&D Limited
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Patent number: 6878718
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: wherein R1 is a group Ar1L2Ar2Alk- in which: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a covalent bond or a linker atom or group; Ar2 is an optionally substituted arylene or heteroarylene group; and Alk is a chain —CH2—CH(R)—, —CH?C(R)— or ?in which R is a carboxylic acid (—CO2H) or a derivative or biostere thereof; X is an —O— or —S— atom or —N(R2)— group in which: Rx, Ry and Rz which may be the same or different is each a hydrogen atom or an optional substituent; or Rz is an atom or group as previously defined and Rx and Ry are joined together to form an optionally substituted spiro linked cycloaliphatic or heterocycloaliphatic group; and the salts, solvates, hydrates and N-oxides thereof.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: April 12, 2005
    Assignee: Celltech R&D Limited
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Publication number: 20020169336
    Abstract: Phenylalanine enamide derivatives of formula (1) are described: 1
    Type: Application
    Filed: February 22, 2002
    Publication date: November 14, 2002
    Inventors: Stephen Brand, Stuart Bailey, Julien A. Brown, James A. Johnson, John R. Porter, John C. Head
  • Patent number: 5622977
    Abstract: Compounds of the general formula (1) ##STR1## are described wherein Y is halogen or --OR.sup.1, where R.sup.1 is a substituted or unsubstituted alkyl; X is --O--, --S-- or --N(R.sup.8)--, where R.sup.8 is hydrogen or alkyl; R.sup.2 is substituted or unsubstituted alkyl, alkenyl, cycloalkyl or cycloalkenyl; R.sup.3 is hydrogen, halogen or --OR.sup.9, where R.sup.9 is hydrogen or substituted or unsubstituted alkyl, alkenyl, alkoxyalkyl, or alkanoyl, or formyl, carboxamido or thiocarboxamido; R.sup.4 and R.sup.5, which may be the same or different, are each --(CH.sub.2).sub.n Ar, where Ar is a monocyclic or bicyclic aryl group or monocyclic or bicyclic heteroaryl and n is integer of 0 to 3; R.sup.6 is hydrogen or substituted or unsubstituted alkyl; R.sup.7 is hydrogen or substituted or unsubstituted alkyl; and the salts, solvates, hydrates and N-oxides thereof.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 22, 1997
    Assignee: Celltech Therapeutics Limited
    Inventors: Graham J. Warrellow, Ewan C. Boyd, Rikki P. Alexander, John C. Head
  • Patent number: 5608070
    Abstract: An enantioselective multi-stage process is described which uses as a starting material an .alpha.,.beta.-unsaturated olefin of formula (1):Ar--CH.dbd.C(R.sup.4)COAux (1)where Ar and R.sup.4, which may be the same or different, is each a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms; and Aux is the residue of a chiral (R- or S-) auxiliary.In the process, the olefin is converted to a chiral triarylethane which is of use in medicine.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: March 4, 1997
    Assignee: Celltech Therapeutics Limited
    Inventors: Rikki P. Alexander, Graham J. Warrellow, John C. Head, Ewan C. Boyd, John R. Porter
  • Patent number: 4889553
    Abstract: Herbicidal triazole sulphonamides of the formula: ##STR1## and salts thereof, where: R.sup.1 represents hydrogen or a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, aralkyl, acyl, alkoxycarbonyl, aminocarbonyl, sulphonyl or heterocyclic group;R.sup.2 represents hydrogen, halo, cyano, hydroxy, mercapto, a substituted or unsubstituted alkyl, alkenyl, alkynyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, acyl, alkoxycarbonyl, aminocarbonyl, aryl or amino group, or a heterocyclic group;R.sup.3 represents a substituted or unsubstituted heterocyclic, benzheterocyclic, aryl or aralkyl group; andR.sup.4 represents hydrogen, a substituted or unsubstituted alkyl, alkenyl, alkynyl, acyl, aroyl, alkylsulphonyl, alkoxycarbonyl, aminocarbonyl, aralkyl, or a group of the formula: ##STR2## where R.sup.1 and R.sup.2 are as defined hereinbefore, processes for their preparation and compositions containing them.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: December 26, 1989
    Assignee: Schering Agrochemicals
    Inventors: Graham P. Rowson, John C. Head, Jurgen Westermann, Martin Kruger, Friedrich Arndt, Richard Rees