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:
Mar. 17, 1981
Filed:
Dec. 10, 1976
Applicant:
Inventors:
Atsushi Kojima, Yokohama, JP;
Yoshitsugu Kohno, Omuta, JP;
Yoshimasa Ike, Yokohama, JP;
Tatsuro Yokoyama, Yokohama, JP;
Makoto Odate, Yokohama, JP;
Assignee:
Mitsui Toatsu Kagaku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544313 ;
Abstract
A process for efficiently preparing 1-(2-tetrahydrofuryl)-5-fluorouracil useful as an antitumor agent or an antiviral agent which comprises reacting 5-fluorouracil with 2,3-dihydrofuran. This reaction proceeds advantageously in the presence of a reaction accelerator such as a Lewis acid in a polar solvent such as pyridine.