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:
Jun. 17, 1986
Filed:
Dec. 17, 1984
Applicant:
Inventors:
Enrico G Baggiolini, North Caldwell, NJ (US);
Andrew D Batcho, North Caldwell, NJ (US);
Alfred Boris, Parsippany, NJ (US);
Milan R Uskokovic, Upper Montclair, NJ (US);
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07C / ;
U.S. Cl.
CPC ...
556436 ; 568374 ; 568819 ;
Abstract
The invention is directed to a process and intermediates for the preparation of 1.alpha.,25-dihydroxyergocalciferol as well as substantially pure and crystalline 1.alpha.,25-dihydroxyergocolciferol. The end-product 1.alpha.,25-dihydroxyergocalciferol is useful in the treatment of disease states which are characterized by insufficient amounts of 1.alpha., 25-dihydroxycholecalciferol.