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:
Oct. 27, 1981
Filed:
Jul. 17, 1980
Applicant:
Inventors:
Hector F DeLuca, Madison, WI (US);
Heinrich K Schnoes, Madison, WI (US);
Herbert E Paaren, Verona, WI (US);
Mary A Fivizzani, Madison, WI (US);
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
2603972 ;
Abstract
A method for isotopically labeling carbon-6 of vitamin D and 5,6-trans-vitamin D compounds which comprises reducing the corresponding 6-oxo-cyclovitamin with a tritio- or deutero-borohydride and subjecting the reduction product to acid-catalyzed solvolysis. The 6-labeled compounds find application in the elucidation of vitamin D metabolism and function and in vitamin metabolite analyses.