Patents by Inventor Janet S. Buckingham

Janet S. Buckingham 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: 5225431
    Abstract: The present invention is concerned with compounds of formula (I) ##STR1## wherein R, R.sup.1 and R.sup.2 are independently selected from hydrogen and C.sub.1-4 alkyl;R.sup.3 and R.sup.4 are independently selected from hydrogen, C.sub.1-6 alkyl (including cycloalkyl) and aryl (wherein the alkyl or aryl group, which latter includes benzyl, is optionally substituted by one or more atoms or groups independently selected from halogen, C.sub.1-4 alkyl and aryl), provided R.sup.3 benzyl or substituted benzyl when R.sup.4 =H;m is an integer of from 0 to 2;n is an integer of from 0 to 3;(W) is a group of formula (i), (ii), (iii), or (iv) ##STR2## wherein Y is selected from oxygen, methylene and >N--R.sup.5, where R.sup.5 is hydrogen, C.sub.1-4 alkyl, or benzyl, Z and Z' are independently selected from >C.dbd.O, >C.dbd.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: July 6, 1993
    Assignee: Burroughs Wellcome Co.
    Inventors: Alan D. Robertson, Graeme R. Martin, Janet S. Buckingham