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:
Dec. 09, 1997
Filed:
Jun. 05, 1995
Applicant:
Inventors:
Helmut Vorbruggen, Berlin, DE;
Konrad Krolikiewicz, Berlin, DE;
Randolph C Wirsching, Livermore, CA (US);
John G Bauman, Alameda, CA (US);
Assignee:
Schering Aktiengesellschaft, Berlin, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07H / ; C07H / ; C07H / ;
U.S. Cl.
CPC ...
536 553 ; 536 2671 ; 536 273 ;
Abstract
This invention relates to a process for the production of 2-fluoropurine derivatives from 2-aminopurine derivatives, which are reacted in HF/pyridine or HF/pyridine/H.sub.2 O in the presence of a nitrite.