Patents by Inventor Derek H. Barton

Derek H. Barton 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).

  • Novel 17-oxazoline-steroids
    Patent number: 4401596
    Abstract: Novel 17-oxazoline-steroids of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms optionally substituted with a member of the group consisting of halogen, oxygen function and nitrogen function and alkenyl and alkynyl of 2 to 4 carbon atoms, R.sub.2 is alkyl of 1 to 4 carbon atoms, R.sub.3 is selected from the group consisting of hydrogen and hydrocarbon of 1 to 8 carbon atoms and the A,B,C and D rings optionally contain at least one double bond and are optionally substituted with at least one member of the group consisting of --OH, .dbd.O, halogen, alkyl and alkoxy of 1 to 4 carbon atoms, and alkenyl and alkynyl of 2 to 4 carbon atoms which are useful intermediates for known steroids having in the 17-position the ##STR2## group.
    Type: Grant
    Filed: November 3, 1981
    Date of Patent: August 30, 1983
    Assignee: Roussel Uclaf
    Inventors: Derek H. Barton, William B. Motherwell, Samir Zard Zard