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. 29, 1999
Filed:
May. 20, 1993
Applicant:
Inventors:
Anica Markovac, Lathrup Village, MI (US);
Maurice P LaMontagne, Farmington Hills, MI (US);
Assignee:
Ash Stevens, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
544264 ; 544267 ;
Abstract
A process for the preparation of 2-fluoro-9- (2,3,5-tri-O-benzyl-beta-D-arabinofuranosyl)adenine (I) is described. The process involves reacting a protected 2-fluoro adenine with a protected chlorosugar under controlled conditions of temperature (80-85.degree. C.) to produce (I), rather than using a process involving fluorinating a 2-substituted nucleoside precursor of (I).