Patents by Inventor John Russel Thomas

John Russel Thomas 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).

  • Process for the preparation of cyclohexyl-azetidinones
    Patent number: 5817806
    Abstract: 1. A process for the preparation of compounds of formula (I) wherein R.sub.1 is a hydroxyl protecting group ##STR1## which comprises reacting the azetidinone (II) with the homochiral (2S)-2- methoxycyclohexane (III) or the complex thereof formed with one molecule of stannic chloide.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: October 6, 1998
    Assignee: Glaxo Wellcome SpA
    Inventors: Tino Rossi, Paola Zarantonello, John Russel Thomas