Patents by Inventor Robin Marks

Robin Marks 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).

  • Compound and process
    Patent number: 5859279
    Abstract: A process for the preparation of a compound of formula (VI), optionally in enantiomerically-enriched form (R or S), comprises chemoselective reduction of a novel compound of formula (V), wherein Ar.sup.1 and Ar.sup.2 are independently selected from optionally-substituted aromatic or heteroaromatic groups having upto 20 C atoms, Ak is C.sub.1-20 alkyl, and R is H or C.sub.1-20 alkyl.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: January 12, 1999
    Assignee: Darwin Discovery Limited
    Inventors: Robin Mark Bannister, Graham Evans
  • Ring-opening amidation process
    Patent number: 5777138
    Abstract: A process for amidating a 2-azabicyclo?2.2.1!heptan-3-one or a 2-azabicyclo?2.2.1!hept-5-en-3-one by reaction with an amine, to form the corresponding ring-opened amide, is modified by the addition of an additive that accelerates the rate of reaction to an extent that the reaction can be carried out at atmospheric pressure.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: July 7, 1998
    Assignee: Chriroscience Limited
    Inventors: Robin Mark Bannister, Neil Henderson, Graham Ruecroft