Patents by Inventor Stephen Wilfred Jones

Stephen Wilfred Jones 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).

  • Process for the preparation of phenylalanine enamide derivatives
    Patent number: 6951943
    Abstract: A process for the preparation of a class of phenylalanine enamide derivatives is described: wherein: Ar1 is an optionally substituted aromatic or heteroaromatic group; L2 is a linker group selected from —N(R4)— [where R4 is a hydrogen atom or an optionally substituted straight or branched C1-6alkyl group], —CON(R4)—, or —S(O)2N(R4)—; R1 is a carboxylic acid (—CO2H) or a derivative or biostere thereof; R2 is a hydrogen atom or a C1-6alkyl group; Rx, Ry and Rz which may be the same or different is each an atom or group -L1(Alk1)n(R3)v; and the salts, solvates, hydrates and N-oxides thereof; which comprises reacting a compound of formula (2): wherein: Qa is a group —N(R4)H; and the salts, solvates, hydrates and N-oxides thereof; with a compound Ar1W wherein W is a group selected from X1(wherein X1 is a leaving atom or group), —COX2 (wherein X2 is a halogen atom or a —OH group) or —SO2X3 (in which X3 is a halogen atom).
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: October 4, 2005
    Assignee: Celltech R & D Limited
    Inventors: Benjamin Mark Skead, Nicholas David Tyrrell, Stephen Wilfred Jones, Michael Handforth Brookes
  • Process for the preparation of phenylalanine enamide derivatives
    Publication number: 20040073033
    Abstract: A process for the preparation of a class of phenylalanine enamide derivatives is described: 1
    Type: Application
    Filed: July 16, 2003
    Publication date: April 15, 2004
    Inventors: Benjamin Mark Skead, Nicholas David Tyrrell, Stephen Wilfred Jones, Michael Handforth Brookes