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:
Nov. 07, 1978
Filed:
Jan. 11, 1973
Applicant:
Inventor:
Max Hoffer, Nutley, NJ (US);
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
536 23 ; 536 22 ;
Abstract
2,2'-Anhydro-1.beta.-D-arabinofuranosyl-5-fluorocytosine (hereafter AAFC) and its acid addition salts are known compounds. AAFC may now be conveniently prepared in extremely high yield by selective acid catalyzed hydrolysis of the corresponding 3'-O-acyl analogs of AAFC which unexpectedly hydrolyzes at the acyl group while the 2,2'-anhydro linkage remains intact.