Patents by Inventor Regina C. Black

Regina C. Black 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 reduction of certain cyclohexapeptide compounds
    Patent number: 5159059
    Abstract: Process for producing a compound of the formula ##STR1## by selectively reducing a compound of the formula ##STR2## in a strong acid medium with excess molar equivalent of reducing agent so that the OH adjacent to X.sub.1 is reduced to H and if Q is OH in the starting material, it optionally may be reduced H.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: October 27, 1992
    Assignee: Merck & Co., Inc.
    Inventors: James M. Balkovec, Regina C. Black