Patents by Inventor Lyman H. Smith

Lyman H. Smith 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 chiral intermediates useful for the synthesis of antifungal agents
    Patent number: 5486625
    Abstract: Described is a process for preparing chiral compounds of the formula ##STR1## wherein X.sup.1 and X.sup.2 are independently F or Cl, and Y is Cl, Br or I, comprising reacting a triol of the formula ##STR2## wherein X.sup.1 and X.sup.2 are as defined above, with acetone in the presence of a catalyst, then with a halogen selected from Cl.sub.2, Br.sub.2 or I.sub.2, or N-bromosuccinimide or N-iodosuccinimide.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: January 23, 1996
    Assignee: Schering Corporation
    Inventors: William Leong, Lyman H. Smith