Patents by Inventor Stephen C. Eyley

Stephen C. Eyley 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).

  • Production of oxygen and nitrogen substituted benzenes
    Patent number: 4618715
    Abstract: There is disclosed a process for the production of 3-amino-4,6-diacetyl phenol, or a derivative thereof, which comprises reacting a compound of formula III, ##STR1## or a protected derivative thereof, in which R is acetyl or hydrogen, with an excess of acetyl chloride or acetyl bromide and aluminium chloride or aluminium bromide at a temperature of from 30.degree. to 50.degree. C. in an halogenated hydrocarbon solvent.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: October 21, 1986
    Assignee: Fisons Limited
    Inventors: Stephen C. Eyley, Stephen C. W. Coltman
  • Certain diacetyl-amino-phenolic derivatives
    Patent number: 4414416
    Abstract: There is described a process for the production of a 1,4-dihydro-4-oxo-quinoline-2-carboxylic acid, or a salt, ester or amide thereof, which comprises cyclization of a corresponding 2-aminobenzoyl pyruvic acid or an ester thereof, and if desired or necessary converting the resulting product to an appropriate salt, ester or amide thereof, or vice versa.
    Type: Grant
    Filed: January 20, 1982
    Date of Patent: November 8, 1983
    Assignee: Fisons Limited
    Inventors: Richard A. Raphael, Stephen C. Eyley, Stephen C. W. Coltman
  • Process for preparing certain pyrano[3,2-g]quinoline 2,8-dicarboxylates and 4-oxo-quinoline-2-carboxylates
    Patent number: 4328341
    Abstract: There is described a process for the production of a 1,4-dihydro-4-oxo-quinoline-2-carboxylic acid, or a salt, ester or amide thereof, which comprises cyclization of a corresponding 2-aminobenzoyl pyruvic acid or an ester thereof, and if desired or necessary converting the resulting product to an appropriate salt, ester or amide thereof, or vice versa.
    Type: Grant
    Filed: December 2, 1980
    Date of Patent: May 4, 1982
    Assignee: Fisons Limited
    Inventors: Richard A. Raphael, Stephen C. Eyley, Stephen C. W. Coltman