Patents by Inventor Derek N. Evans

Derek N. Evans 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).

  • Macrolide compounds
    Patent number: 5001145
    Abstract: Compounds are described of formula (1) ##STR1## and salts thereof wherein R.sup.1 is a methyl, ethyl or isopropyl group;R.sup.2 represents a hydrogen atom or a group OR.sup.4 (where OR.sup.4 is a hydroxyl group or a substituted hydroxyl group having up to 25 carbon atoms) and R.sup.3 represents a hydrogen atom, or R.sup.2 and R.sup.3 together with the carbon atom to which they are attached represent >C.dbd.CH.sub.2, >C.dbd.O or >C.dbd.NOR.sup.5 (where R.sup.5 is a hydrogen atom or a C.sub.1-8 alkyl group and the group >C.dbd.NOR.sup.5 is in the E configuration).These compounds may be used for controlling insect, acarine, nematode or other pests.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: March 19, 1991
    Assignee: American Cyanamid Company
    Inventors: Michael V. J. Ramsay, Derek N. Evans, Derek R. Sutherland, Edward P. Tiley, John B. Ward, Neil Porter, Hazel M. Noble, Richard A. Fletton, David Noble
  • Guanine derivatives
    Patent number: 4857531
    Abstract: The present invention provides a compound of formula (I) ##STR1## and salts and solvates thereof, and describes processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of viral diseases, especially those caused by the Herpetoviridae.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: August 15, 1989
    Assignee: Glaxo Group Limited
    Inventors: David A. Borthwick, Barrie E. Kirk, Derek N. Evans, Keith Biggadike, Leslie Stephenson