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:
Jul. 09, 1991
Filed:
Feb. 14, 1990
Applicant:
Inventors:
Hector F DeLuca, Deerfield, WI (US);
Heinrich K Schnoes, Madison, WI (US);
Shigeya Okada, Hirakatashi, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568817 ; 568822 ; 568823 ; 568838 ;
Abstract
This invention relates to hydroxylated derivatives of vitamin D.sub.2 and a process for preparing such compounds. In particular, a process for preparing the 24-epimer of vitamin D.sub.2 and the corresponding 1.alpha.-hydroxylated derivative thereof is disclosed. The vitamin D.sub.2 derivatives would find application in the treatment of or prophylaxsis for various disease states characterized by calcium and phosphorous imbalances.