The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2004
Filed:
Jul. 25, 2002
Applicant:
Inventors:
Hector F. DeLuca, Deerfield, WI (US);
Masato Shimizu, Shinagawa-ku, JP;
Sachiko Yamada, Hachioji, JP;
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/02 ;
U.S. Cl.
CPC ...
C07F 9/02 ;
Abstract
The present invention provides a method for the synthesis of an A-ring synthon phosphine oxide used in the preparation of 19-nor vitamin D compounds, and to novel synthetic intermediates formed during the synthesis. The new method prepares the phosphine oxide from (D)-glucose.