Patents by Inventor Brian Cchristopher Bishop

Brian Cchristopher Bishop 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).

  • Chemical synthesis of azaindoles
    Patent number: 5681959
    Abstract: The present invention relates to a process for the preparation of azaindole derivatives of the formula ##STR1## wherein Q is hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.1-6 alkoxy, hydroxy, aryl or arylC.sub.1-4 alkyl;one of X, Y and Z is --N.dbd. and the others are --CH.dbd.;R.sup.1 is hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkenyl or C.sub.1-6 alkyl substituted by a group selected from aryl or --NR.sup.2 R.sup.3 where R.sup.2 and R.sup.3 each independently represent C.sub.1-4 alkyl, or R.sup.2 and R.sup.3, together with the nitrogen atom to which they are attached, form a 4-7 membered saturated heterocyclic ring, optionally containing in the ring an oxygen or sulphur atom or a group NR.sup.4 where R.sup.4 is C.sub.1-4 alkyl, aryl or arylC.sub.1-4 alkyl; andR.sup.5 is a hydrogen atom or a group selected from C.sub.1-6 alkyl or aryl.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: October 28, 1997
    Assignee: Merck, Sharp & Dohme Ltd.
    Inventors: Brian Cchristopher Bishop, Ian Frank Cottrell, Mark Cameron, David Hands