Granted Patent
Utility
US 5,187,278 · App. 07/786,615
Trialkylsilyl trifluoromethanesulfonate mediated .alpha.-methylenic carbon functionalization of 4-aza-5.alpha.-androstan-3-one steroids
Inventors:
Anthony O. King, Kevin W. Anderson, Sandor Karady, Alan W. Douglas, Newton L. Abramson, Richard F. Shuman
Patented Case
View Patent ↗
Granted: Feb 16, 1993
Filed: Nov 1, 1991
Inventors
Anthony O. King
Kevin W. Anderson
Sandor Karady
Alan W. Douglas
Newton L. Abramson
Richard F. Shuman
Assignee (at issue)
MERCK & CO., INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.