Patents by Inventor Alan T. Kawaguchi

Alan T. Kawaguchi 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 desilylation of a 4-silyloxy-tetrahydro-pyran-2-one
    Patent number: 5650523
    Abstract: A process is described for the removal of a silyl protecting group from the 4-hydroxy group of a tetrahydro-pyran-2-one moiety.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: July 22, 1997
    Assignee: Merck & Co., Inc.
    Inventors: Ann E. DeCamp, Alan T. Kawaguchi, Ralph P. Volante
  • Processes and intermediates for the preparation of 5-oxygenated HMG-CoA reductase inhibitors
    Patent number: 5059696
    Abstract: This invention discloses novel intermediates and novel process for their preparation where said intermediates are useful for the preparation of 5-oxygenated derivatives (T) of lovastatin and analogs thereof at the 8-acyl side chain and 6-position of the polyhydronaphthyl ring. Said derivatives of lovastatin (T) and analogs thereof are useful in treating hypercholesterolemia and are disclosed in the U.S. Pat. No. 4,963,538.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: October 22, 1991
    Assignee: Merck & Co., Inc.
    Inventors: Robert K. Anderson, Ann E. DeCamp, Alan T. Kawaguchi, Anthony O. King, Sander G. Mills, Ralph P. Volante