Patents by Inventor Eric C. Wilmhurst

Eric C. Wilmhurst 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: 4806570
    Abstract: Compounds of formula I ##STR1## in which R.sub.1 is C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-7 cycloalkyl, cycloalkylalkyl or optionally substituted phenyl; R.sub.2 is H or C.sub.1-3 alkyl; R.sub.3 and/or R.sub.4 are H, formyl, C.sub.1-3 alkyl, C.sub.3-6 alkenyl, C.sub.3-6 alkynyl, C.sub.3-7 cycloalkyl or R.sub.3 and R.sub.4 together with the nitrogen atom form a heterocyclic ring system; R.sub.5 and/or R.sub.6 are H, halo, CF.sub.3, C.sub.1-3 alkyl, C.sub.1-3 alkoxy, C.sub.1-3 alkylthio or R.sub.5 and R.sub.6 together with the carbon atoms to which they are attached form a second benzene ring show therapeutic activity in the treatment of depression. Pharmaceutical compositions and processes for preparing compounds of formula I are disclosed.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: February 21, 1989
    Assignee: The Boots Company plc
    Inventors: James E. Jeffery, Antonin Kozlik, Eric C. Wilmhurst